American Airlines Group Inc,
Fiscal Year 2023.

Our total revenue per available seat mile (TRASM) was 19.01 cents in 2023, a 1.0% increase as compared to 18.82 cents in 2022. Fuel In 2023, aircraft fuel expense totaled $12.3 billion, a decrease of $1.5 billion, or 11.1%, as compared to 2022. This decrease was primarily driven by a 16.3% decrease in the average price per gallon of aircraft fuel including related taxes to $2.96 in 2023 from $3.54 in 2022, offset in part by a 6.1% increase in gallons of fuel consumed due to increased capacity. As of December 31, 2023, we did not have any fuel hedging contracts outstanding to hedge our fuel consumption. Our current policy is not to enter into transactions to hedge our fuel consumption, although we review this policy from time to time based on market conditions and other factors. As such, and assuming we do not enter into any future transactions to hedge our fuel consumption, we will continue to be fully exposed to fluctuations in fuel prices.

Passenger Revenue We recognize all revenues generated from transportation on American and our regional flights operated under the brand name American Eagle, including associated baggage fees and other inflight services, as passenger revenue when transportation is provided. Ticket and other related sales for transportation that has not yet been provided are initially deferred and recorded as air traffic liability on our consolidated balance sheets. The air traffic liability principally represents tickets sold for future travel on American and partner airlines. The majority of tickets sold are nonrefundable. A small percentage of tickets, some of which are partially used tickets, expire unused. The estimate for tickets expected to expire unused is generally based on an analysis of our historical data. We have consistently applied this accounting method to estimate and recognize revenue from unused tickets at the date of travel. This estimate is periodically evaluated based on subsequent activity to validate its accuracy. Any adjustments resulting from periodic evaluations of the estimated air traffic liability are included in passenger revenue during the period in which the evaluations are completed. While the contract duration of passenger tickets is generally one year, in response to the COVID-19 pandemic, we extended the contract duration for certain tickets to September 30, 2022, principally those tickets which were issued in 2020 and 2021. Additionally, we extended the contract duration to December 31, 2022 for tickets to certain international destinations. Tickets issued in 2022 and thereafter are no longer subject to change fees which provides more flexibility for customers to change travel plans. Given this new flexibility offered to our customers, our estimate of revenue that will be recognized from the air traffic liability for future flown or unused tickets may be subject to variability and differ from historical experience.

•issued $1.1 billion of equipment loans and other notes payable in connection with the financing of certain aircraft; and •repurchased $552 million of secured and unsecured notes in the open market. A significant portion of our debt financing agreements contain covenants requiring us to maintain an aggregate of at least $2.0 billion of unrestricted cash and cash equivalents and amounts available to be drawn under revolving credit facilities and/or contain covenants requiring us to meet certain loan to value, collateral coverage and/or peak debt service coverage ratios.

Operating Statistics The table below sets forth selected operating data for the years ended December 31, 2023 and 2022. Year Ended December 31,Increase(Decrease)

19.01 18.82 1.0% Fuel consumption (gallons in millions)4,140 3,901 6.1% Average aircraft fuel price including related taxes (dollars per gallon)2.96 3.54 (16.3)%

(g)Total operating cost per available seat mile (CASM) - Total operating expenses divided by ASMs. (h)Includes aircraft owned and leased by American as well as aircraft operated by third-party regional carriers under capacity purchase agreements. Excluded from the aircraft count above are 77 regional aircraft in temporary storage as of December 31, 2023 as follows: 57 Embraer 145, 11 Bombardier CRJ 700, six Bombardier CRJ 900 and three Embraer 170.

Operating Expenses Year Ended December 31,Increase(Decrease)PercentIncrease(Decrease) 20232022 (In millions, except percentage changes) Aircraft fuel and related taxes$12,257 $13,791 $(1,534)(11.1)

Operating Revenues Year Ended December 31,Increase (Decrease)PercentIncrease (Decrease) 20232022 (In millions, except percentage changes) Passenger$48,512 $44,568 $3,944 8.8

Total operating revenues in 2023 increased $3.8 billion, or 7.8%, from 2022 driven primarily by the increase in passenger revenue as described above. 67

Nonoperating Results Year Ended December 31,Increase(Decrease)PercentIncrease(Decrease) 20232022 (In millions, except percentage changes) Interest income$1,078 $349 $729 nm

Pre-tax income excluding net special items$2,462 $458 $2,004 nm (1)See Part II, Item 6. Selected Consolidated Financial Data - "Reconciliation of GAAP to Non-GAAP Financial Measures" and Note 2 to AAG's Consolidated Financial Statements in Part II, Item 8A for details on the components of pre-tax net special items.

In 2022, American recorded an income tax provision of $116 million at an effective rate of approximately 26%, which was substantially non-cash. See Note 5 to American's Consolidated Financial Statements in Part II, Item 8B for additional information on income taxes. 69

Total available liquidity$10,440 $11,998 $10,427 $11,985 In the ordinary course of our business, we or our affiliates may, at any time and from time to time, seek to prepay, retire or repurchase our outstanding debt through cash purchases and/or exchanges for equity or debt, in open-market purchases, privately negotiated transactions or otherwise. Such repurchases, prepayments, retirements or exchanges, if any, will be conducted on such terms and at such prices as we may determine, and will depend on prevailing market conditions, our liquidity requirements, legal and contractual restrictions and other factors. The amounts involved may be material. For further information regarding our debt repurchases for the year ended December 31, 2023, see Note 4 to AAG's Consolidated Financial Statements in Part II, Item 8A and Note 3 to American's Consolidated Financial Statements in Part II, Item 8B.

Certain Covenants Our debt agreements contain customary terms and conditions as well as various affirmative, negative and financial covenants that, among other things, may restrict the ability of us and our subsidiaries to incur additional indebtedness, pay dividends or repurchase stock. Our debt agreements also contain customary change of control provisions, which may require us to repay or redeem such indebtedness upon certain events constituting a change of control under the relevant agreement, in certain cases at a premium. Additionally, certain of our debt financing agreements (including our secured notes, term loans, revolving credit facilities and spare engine enhanced equipment trust certificates (EETCs)) contain loan to value (LTV), collateral coverage or peak debt service coverage ratio covenants and certain agreements require us to appraise the related collateral annually or semiannually. Pursuant to such agreements, if the applicable LTV, collateral coverage or peak debt service coverage ratio exceeds or falls below a specified threshold, as the case may be, we will be required, as applicable, to pledge additional qualifying collateral (which in some cases may include cash or investment securities), withhold additional cash in certain accounts, or pay down such financing, in whole or in part, or the interest rate for the relevant financing will be increased. As of the most recent applicable measurement dates, we were in compliance with each of the foregoing LTV, collateral coverage and peak debt service coverage tests. Additionally, a significant portion of our debt financing agreements contain covenants requiring us to maintain an aggregate of at least $2.0 billion of unrestricted cash and cash equivalents and amounts available to be drawn under revolving credit facilities, and our AAdvantage Financing contains a peak debt service coverage ratio, pursuant to which failure to comply with a certain threshold may result in early repayment, in whole or in part, of the AAdvantage Financing. For further information regarding our debt covenants, see Note 4 to AAG's Consolidated Financial Statements in Part II, Item 8A and Note 3 to American's Consolidated Financial Statements in Part II, Item 8B. 70

Letters of Credit and Other We provide financial assurance, such as letters of credit and surety bonds, primarily to support projected workers' compensation obligations and airport commitments. As of December 31, 2023, we had $318 million of letters of credit and surety bonds securing various obligations, of which $94 million is collateralized with our restricted cash. The letters of credit and surety bonds that are subject to expiration will expire on various dates through 2028. 73

(c)For variable-rate debt, future interest obligations are estimated using the current forward rates at December 31, 2023. (d)Includes $7.7 billion of future principal payments and $1.0 billion of future interest payments as of December 31, 2023, related to EETCs associated with mortgage financings of certain aircraft and spare engines. (e)See Part I, Item 2. Properties - "Aircraft and Engine Purchase Commitments" for additional information about the firm commitment aircraft delivery schedule, in particular the footnote to the table thereunder as to potential changes to such delivery schedule. Due to uncertainty surrounding the timing of delivery of certain aircraft, the amounts in the table represent our most current estimate based on contractual delivery schedules adjusted for updates and revisions to such schedules communicated to management by the applicable equipment manufacturer. However, the actual delivery schedule may differ, potentially materially, based on various potential factors including production delays by the manufacturer and regulatory concerns. Additionally, the amounts in the table exclude five Boeing 787 Family 74 aircraft scheduled to be delivered in 2024, for which we have obtained committed lease financing. This financing is reflected in the operating lease commitments line above. (f)Represents minimum payments under capacity purchase agreements with third-party regional carriers. These commitments are estimates of costs based on assumed minimum levels of flying under the capacity purchase agreements and American's actual payments could differ materially. Rental payments under operating leases for certain aircraft flown under these capacity purchase agreements are reflected in the operating lease commitments line above. (g)Represents minimum pension contributions based on actuarially determined estimates as of December 31, 2023 and is based on estimated payments through 2033. In January 2024, we made $280 million of required pension contributions. (h)Includes purchase commitments for aircraft fuel, flight equipment maintenance and information technology support and excludes obligations under certain fuel offtake agreements or other agreements for which the timing of the related expenditure is uncertain, or which are subject to material contingencies, such as the construction of a production facility.

5.3 %5.7 % Expected rate of return on plan assets (2) 8.0 %8.0 % (1)When establishing the discount rate to measure our obligations, we match high quality corporate bonds available in the marketplace whose cash flows approximate our projected benefit disbursements. Lowering the discount rate by 50 basis points as of December 31, 2023 would increase our pension and retiree medical and other postretirement benefits obligations by approximately $740 million and $40 million, respectively, and decrease estimated 2024 pension and retiree medical and other postretirement benefits expense by approximately $5 million and $1 million, respectively. (2)The expected rate of return on plan assets is based upon an evaluation of our historical trends and experience, taking into account current and expected market conditions and our target asset allocation of 30% U.S. fixed income securities, 24% U.S. stocks, 24% private investments, 16% developed international stocks and 6% emerging market stocks. The expected rate of return on plan assets component of our net periodic benefit cost is calculated based on the fair value of plan assets and our target asset allocation. Lowering the expected long-term rate of return on plan assets by 50 basis points as of December 31, 2023 would increase estimated 2024 pension expense and retiree medical and other postretirement benefits expense by approximately $60 million and $1 million, respectively. 77 Annually, we review and revise certain economic and demographic assumptions including the pension and retiree medical and other postretirement benefits discount rates and health care costs. The net effect of changing these assumptions for the pension plans resulted in an increase of $546 million in the projected benefit obligation at December 31, 2023. The net effect of changing these assumptions for retiree medical and other postretirement benefits plans resulted in an increase of $89 million in the accumulated postretirement benefit obligation at December 31, 2023. See Note 9 to AAG's Consolidated Financial Statements in Part II, Item 8A and Note 8 to American's Consolidated Financial Statements in Part II, Item 8B for additional information regarding our employee benefit plans.

In addition, operations at three major domestic airports, certain smaller domestic airports and many foreign airports we serve are regulated by governmental entities through allocations of slots or similar regulatory mechanisms that limit the rights of carriers to conduct operations at those airports. Each slot represents the authorization to land at or take off from the particular airport during a specified time period and may impose other operational restrictions as well. In the U.S., the DOT and the FAA currently regulate the allocation of slots or slot exemptions at DCA and two New York City airports: JFK and LGA. Our operations at these airports generally require the allocation of slots or similar regulatory authority. In addition to slot restrictions, operations at DCA and LGA are also limited based on a so-called "perimeter rule" which generally limits the stage length of the flights that can be operated from those airports to 1,250 and 1,500 miles, respectively. Similarly, our operations at LHR, international airports in Frankfurt, Paris, Tokyo and other airports outside the U.S. are regulated by local slot authorities pursuant to the International Airline Trade Association Worldwide Scheduling Guidelines and/or applicable local law. Termination of slot controls or other operational restrictions at some or all of the foregoing airports could affect our operational performance and competitive position. We currently have sufficient slots or analogous authorizations to operate our existing flights and we have generally, but not always, been able to obtain the rights to expand our operations and to change our schedules. However, there is no assurance that we will be able to obtain sufficient slots or analogous authorizations in the future or as to the cost of acquiring such rights because, among other reasons, such allocations are often sought after by other airlines and are subject to changes in governmental policies. During periods of reduced demand for air travel, such as during the COVID-19 pandemic, we may rely on exemptions granted by applicable authorities from the requirement that we continuously use certain slots, gates and routes or risk having such operating rights revoked, and depending on the applicable authority these exemptions can vary in the way they are structured and applied. We cannot predict whether such exemptions will be made available, whether they will be granted on the same or similar terms as in past instances, or whether we ultimately could be at risk of losing valuable operating rights. If we are forced to surrender slots or other rights, we may be unable to provide our desired level of service to or from certain destinations in the future. We cannot provide any assurance that regulatory changes resulting in changes in the application of slot controls or the allocation of or any reallocation of existing slots, the continued enforcement or termination of a perimeter rule or similar regulatory regime will not have a material adverse impact on our operations. Our ability to provide service can also be impaired at airports where the airport gates and other facilities are currently inadequate to accommodate all of the service that we would like to provide, or where we have no access to gates at all. Any limitation on our ability to acquire or maintain adequate gates, ticketing facilities, operations areas, operations control facilities, slots (where applicable), or office space could have a material adverse effect on our business, results of operations and financial condition.

•super-majority voting requirements to modify or amend specified provisions of our Certificate of Incorporation. 48 These provisions are not intended to prevent a takeover, but are intended to protect and maximize the value of the interests of our stockholders. While these provisions have the effect of encouraging persons seeking to acquire control of our company to negotiate with our Board of Directors, they could enable our Board of Directors to prevent a transaction that some, or a majority, of our stockholders might believe to be in their best interest and, in that case, may prevent or discourage attempts to remove and replace incumbent directors. In addition, we are subject to the provisions of Section 203 of the Delaware General Corporation Law, which prohibits business combinations with interested stockholders. Interested stockholders do not include stockholders whose acquisition of our securities is approved by the Board of Directors prior to the investment under Section 203. The issuance or sale of shares of our common stock, rights to acquire shares of our common stock, or warrants issued to the U.S. Department of Treasury under the CARES Act, the PSP Extension Law, the ARP, PSP1, PSP2 and PSP3, could depress the trading price of our common stock and the Convertible Notes. We may conduct future offerings of material amounts of our common stock, preferred stock or other securities that are convertible into or exercisable for our common stock to finance our operations, to fund acquisitions, or for any other purposes at any time and from time to time (including as compensation to the U.S. Government for the proceeds received pursuant to the payroll support program established under the Coronavirus Aid, Relief, and Economic Security Act (CARES Act) (PSP1), the payroll support program established under the Subtitle A of Title IV of Division N of the Consolidated Appropriations Act, 2021 (PSP Extension Law) (PSP2) and the payroll support program established under the American Rescue Plan Act of 2021 (ARP) (PSP3)). If these additional shares or securities are issued or sold, or if it is perceived that they will be sold, into the public market or otherwise, the trading price of our common stock and the 6.50% convertible senior notes due 2025 (the Convertible Notes) could decline substantially. If we issue additional shares of our common stock or rights to acquire shares of our common stock, if any of our existing stockholders sells a substantial amount of our common stock, or if the market perceives that such issuances or sales may occur, then the trading price of our common stock and the Convertible Notes could decline substantially.

Our aviation fuel purchase contracts generally do not provide meaningful price protection against increases in fuel costs. Our current policy is not to enter into transactions to hedge our fuel consumption, although we review this policy from time to time based on market conditions and other factors. Accordingly, as of December 31, 2022, we did not have any fuel hedging contracts outstanding to hedge our fuel consumption. As such, and assuming we do not enter into any future transactions to hedge our fuel consumption, we will continue to be fully exposed to fluctuations in fuel prices. See also the discussion in Part II, Item 7A. Quantitative and Qualitative Disclosures About Market Risk - "Aircraft Fuel." In addition, as part of our emissions reduction targets, we and other airlines have committed to increasing the use of SAF in our fleet. Currently, industrial production of SAF is small in scale and inadequate to meet growing industry demand, and while additional production capacity is expected to come online in coming years, we anticipate that competition for SAF among industry participants will remain intense. As a result, we may need to pay a significant premium for SAF above the price we would pay for conventional jet fuel. To secure future SAF supply, we have entered into multiple agreements for the purchase of future SAF production, and continue to engage with producers regarding potential future SAF purchases, which may include investments to support these producers. Certain existing or potential future agreements pertain to SAF production from facilities that are planned but not yet operational, and which may utilize technology that has not been proven at commercial scale. There is no assurance that these facilities will be built or that they will meet contracted production timelines and volumes. In the event that the SAF is not delivered on schedule or in sufficient volumes, there can be no assurance that we will be able to source a supply of SAF sufficient to meet our stated goals, or that we will be able to do so on favorable economic terms. 40 Our business is subject to extensive government regulation, which may result in increases in our costs, disruptions to our operations, limits on our operating flexibility, reductions in the demand for air travel, and competitive disadvantages. Airlines are subject to extensive domestic and international regulatory requirements. In the last several years, Congress and state and local governments have passed laws and regulatory initiatives, and the DOT, the FAA, the TSA and several of their respective international counterparts have issued regulations and a number of other directives, that affect the airline industry. These requirements impose substantial costs on us and restrict the ways we may conduct our business. For example, the FAA from time to time issues directives and other regulations relating to the maintenance and operation of aircraft that require significant expenditures or operational restrictions. These requirements can be issued with little or no notice, or can otherwise impact our ability to efficiently or fully utilize our aircraft, and in some instances have resulted in the temporary and prolonged grounding of aircraft types altogether (including, for example, the March 2019 grounding of all Boeing 737 MAX Family aircraft, which was not lifted in the United States until November 2020), or otherwise caused substantial disruption and resulted in material costs to us and lost revenues. The recent telecom industry roll-out of 5G technology, and concerns regarding its possible interference with aircraft navigation systems, also resulted in regulatory uncertainty and the potential for operational impacts, including possible suspension of service to certain airports or the operation of certain aircraft. See "We rely heavily on technology and automated systems to operate our business, and any failure of these technologies or systems could harm our business, results of operations and financial condition." The FAA also exercises comprehensive regulatory authority over nearly all technical aspects of our operations. Our failure to comply with such requirements has in the past and may in the future result in fines and other enforcement actions by the FAA or other regulators. The FAA recently issued a final rule implementing flight attendant duty and rest periods, which will impact our scheduling flexibility. In the future, any new regulatory requirements, particularly requirements that limit our ability to operate or price our products, could have a material adverse effect on us and the industry. DOT consumer rules, and rules promulgated by certain analogous agencies in other countries we serve, dictate procedures for many aspects of our customer's journey, including at the time of ticket purchase, at the airport, and onboard the aircraft. DOT requires multiple disclosures of airline fares, taxes and baggage fees and is further changing these requirements to increase the number of disclosures and the time at which they must be disclosed. DOT also recently issued a proposed rule mandating refunds in certain circumstances, such as a global pandemic. DOT has also proposed rules requiring disclosure of certain ancillary fees by air carriers and travel agents. Finally, DOT will be proposing and implementing a number of new disability regulations that will impact us, including rules for accessible lavatories on single-aisle aircraft, wheelchair damage and prompt wheelchair assistance. The Aviation and Transportation Security Act mandates the federalization of certain airport security procedures and imposes additional security requirements on airports and airlines, most of which are funded by a per-ticket tax on passengers and a tax on airlines. Present and potential future security requirements can have the effect of imposing costs and inconvenience on travelers, potentially reducing the demand for air travel.

Similarly, there are a number of legislative and regulatory initiatives and reforms at the state and local levels. These initiatives include increasingly stringent laws to protect the environment, wage/hour requirements, mandatory paid sick or family leave, and healthcare mandates. These laws could affect our relationship with our workforce and the vendors that serve our airline and cause our expenses to increase without an ability to pass through these costs. In recent years, the airline industry has experienced an increase in litigation over the application of state and local employment laws, particularly in California. Application of these laws may result in operational disruption, increased litigation risk and impact our negotiated labor agreements. For example, we are currently involved in legal proceedings brought by flight attendants and certain other work groups in California concerning alleged violations of the state's labor code including, among other things, violations of certain meal and rest break laws, and an adverse determination in any of these cases could adversely impact our operational flexibility and result in the imposition of damages and fines, which could potentially be significant. Additionally, in September 2021, the Biden Administration issued an executive order mandating a COVID-19 vaccination requirement for federal contractors. Due to a number of our agreements, American is classified as a government contractor. Consistent with this executive order and guidance from the Safer Federal Workforce Task Force responsible for implementing the order, we announced that the federal vaccine mandate would require all of American's U.S.-based team members and certain international crew members to be vaccinated or be exempt due to an accommodation for a medical disability or sincerely held religious belief. Enforcement of the federal contractor vaccine mandate has been on hold amid multiple ongoing legal challenges. Given the uncertainty of its viability in the courts, the timing of implementation and availability of accommodations, we cannot predict the ultimate impact of this federal vaccination 41 requirement on our business should the federal government move to reinstate and enforce it. Moreover, we may be subject to state and local vaccine mandates and other COVID-19-related requirements governing airports where we operate. While OSHA has withdrawn its overarching COVID-19 Emergency Temporary Standard, the U.S. Supreme Court has acknowledged that OSHA may issue a revised COVID-19 standard targeted to high-risk occupations or workplaces, which could impact our regional carriers and other service providers. The results of our operations, demand for air travel, and the manner in which we conduct business each may be affected by changes in law and future actions taken by governmental agencies, including: •changes in law that affect the services that can be offered by airlines in particular markets and at particular airports, or the types of fares offered or fees that can be charged to passengers; •the granting and timing of certain governmental approvals (including antitrust or foreign government approvals) needed for codesharing alliances, joint businesses and other arrangements with other airlines, and the imposition of regulatory investigations or commencement of litigation related to any of the foregoing (including our arrangements with JetBlue); •restrictions on competitive practices (for example, court orders, or agency regulations or orders, that would curtail an airline's ability to respond to a competitor); •the adoption of new passenger security standards or regulations that impact customer service standards; •restrictions on airport operations, such as restrictions on the use of slots at airports or the auction or reallocation of slot rights currently held by us;

◦if breached, result in an event of default under our indebtedness. In addition, since the onset of the COVID-19 pandemic we have been required to obtain a significant amount of additional financing from a variety of sources and we cannot guarantee that we will not need to obtain additional financing in the future. Such financing may include the issuance of additional unsecured or secured debt securities, equity securities and equity-linked securities as well as additional bilateral and syndicated secured and/or unsecured credit facilities, among other items. There can be no assurance as to the timing of any such financing transactions, which may be in the near term, or that we will be able to obtain such additional financing on favorable terms, or at all. Any such actions may be material in nature, could result in the incurrence and issuance of significant additional indebtedness or equity and could impose significant covenants and restrictions to which we are not currently subject. In particular, in connection with the financial assistance we have received through the payroll support program established under the Coronavirus Aid, Relief, and Economic Security Act (CARES Act) (PSP1), the payroll support program established under the Subtitle A of Title IV of Division N of the Consolidated Appropriations Act, 2021 (PSP Extension Law) (PSP2) and the payroll support program established under the American Rescue Plan Act of 2021 (ARP) (PSP3), we are required to comply with the relevant provisions of the CARES Act, the PSP Extension Law and the ARP, respectively, including the requirement that funds provided pursuant to PSP1, PSP2 and PSP3 be used exclusively for the continuation of payment of eligible employee wages, salaries and benefits; and restrictions on the payment of certain executive compensation until April 1, 2023. Additionally, under PSP1, PSP2 and PSP3, we and certain of our subsidiaries are subject to substantial and continuing reporting obligations. The substance and duration of these restrictions may materially affect our operations, and we may not be successful in managing these impacts. Moreover, as a result of the financing activities we undertook in response to 29 the COVID-19 pandemic, the number of financings with respect to which such covenants and provisions apply has increased, thereby subjecting us to more substantial risk of cross-default and cross-acceleration in the event of breach, and additional covenants and provisions could become binding on us as we continue to seek additional liquidity. The obligations discussed above, including those imposed as a result of the CARES Act, the PSP Extension Law, the ARP and any additional financings we may be required to undertake, could also impact our ability to obtain additional financing, if needed, and our flexibility in the conduct of our business, and could materially adversely affect our liquidity, results of operations and financial condition. Further, a substantial amount of our long-term indebtedness bears interest at fluctuating interest rates, primarily based on the London interbank offered rate (LIBOR) for deposits of U.S. dollars. LIBOR tends to fluctuate based on general short-term interest rates, rates set by the U.S. Federal Reserve and other central banks, the supply of and demand for credit in the London interbank market and general economic conditions. We have not hedged our interest rate exposure with respect to our floating rate debt. Accordingly, our interest expense for any particular period will fluctuate based on LIBOR and other variable interest rates. In 2022, in response to rising inflation which coincided with a rapid rebound of economic activity as governments lifted restrictions and economies reopened following the COVID-19 pandemic, central banks around the world-including the U.S. Federal Reserve, the European Central Bank and the Bank of England-commenced a cycle of raising interest rates, which has consequently increased the interest we pay on our floating-rate indebtedness. To the extent the interest rates applicable to our floating rate debt increase, our interest expense will increase, in which event we may have difficulties making interest payments and funding our other fixed costs, and our available cash flow for general corporate requirements may be adversely affected. On July 27, 2017, the U.K. Financial Conduct Authority (the authority that regulates LIBOR) announced that it intends to stop compelling banks to submit rates for the calculation of LIBOR after 2021. The discontinuation date for submission and publication of rates for certain tenors of USD LIBOR (1-month, 3-month, 6-month and 12-month) was subsequently extended by the ICE Benchmark Administration (the administrator of LIBOR) until June 30, 2023. It is not possible to predict what rate or rates may become the predominant alternative to LIBOR, or what effect these changes in views or alternatives may have on financial markets for LIBOR-linked financial instruments. While the U.S. Federal Reserve, in conjunction with the Alternative Reference Rates Committee, has chosen the Secured Overnight Financing Rate (SOFR), and specifically Term SOFR, as the recommended risk-free reference rate for the U.S. (calculated based on repurchase agreements backed by treasury securities), we cannot currently predict the extent to which this index will gain widespread acceptance as a replacement for LIBOR. It is not possible to predict the effect of these changes, other reforms or the establishment of alternative reference rates in the United Kingdom, the United States or elsewhere. See also the discussion of interest rate risk in Part II, Item 7A. Quantitative and Qualitative Disclosures About Market Risk - "Interest."

•outbreaks of diseases that affect travel behavior, such as occurred during the COVID-19 pandemic; and 31 •weather and natural disasters, including increases in frequency, severity or duration of such disasters, and related costs caused by more severe weather due to climate change. The COVID-19 pandemic, along with the measures governments and private organizations worldwide implemented in an attempt to contain its spread, resulted in significant volatility in demand for air travel, which adversely affected our business, operations and financial condition to an unprecedented extent and for a prolonged period. Measures implemented during the COVID-19 pandemic-such as travel restrictions, including testing regimes, "stay at home" and quarantine orders, limitations on public gatherings, cancellation of public events and many others-initially resulted in a precipitous decline in demand for both domestic and international business and leisure travel. Additionally, the COVID-19 pandemic necessitated changes in business practices which may persist. For example, businesses and other travelers may continue to forego air travel in favor of remote or flexible working policies and communication alternatives such as videoconferencing. In addition, businesses may seek to reduce travel costs by requiring the purchase of less expensive tickets, thereby potentially impacting our average revenue per available seat mile. In response to this material deterioration in demand, we took a number of aggressive actions to ameliorate the impacts to our business, operations and financial condition. While cases have declined globally and many governments have loosened or lifted COVID-related travel restrictions, the duration and severity of the COVID-19 pandemic-including the emergence and spread of any new variants-and its after effects remain uncertain, and there can be no assurance that any mitigating actions we take in response will be sufficient to avert a deterioration in our business, financial condition and results of operations. In addition to the effects of the COVID-19 pandemic, an outbreak of another contagious disease-such as has occurred in the past with the Ebola virus, Middle East Respiratory Syndrome, Severe Acute Respiratory Syndrome, H1N1 influenza virus, avian flu, Zika virus or any other similar illness-if it were to become associated with air travel or persist for an extended period, could materially affect the airline industry and us by reducing revenues and adversely impacting our operations and passengers' travel behavior. As a result of these or other conditions beyond our control, our results of operations could be volatile and subject to rapid and unexpected change. In addition, due to generally weaker demand for air travel during the winter, our revenues in the first and fourth quarters of the year could be weaker than revenues in the second and third quarters of the year. Union disputes, employee strikes and other labor-related disruptions, or our inability to otherwise maintain labor costs at competitive levels and hire and retain a sufficient number of employees may adversely affect our operations and financial performance. Relations between air carriers and labor unions in the U.S. are governed by the RLA. Under the RLA, CBAs generally contain "amendable dates" rather than expiration dates, and the RLA requires that a carrier maintain the existing terms and conditions of employment following the amendable date through a multi-stage and usually lengthy series of bargaining processes overseen by the NMB. As of December 31, 2022, approximately 87% of our employees were represented for collective bargaining purposes by labor unions, and 48% were covered by CBAs that are currently amendable or that will become amendable within one year. For the dates that the CBAs with our major work groups become amendable under the RLA, see Part I, Item 1. Business - "Our People-Labor Relations." In the case of a CBA that is amendable under the RLA, if no agreement is reached during direct negotiations between the parties, either party may request that the NMB appoint a federal mediator. The RLA prescribes no timetable for the direct negotiation and mediation processes, and it is not unusual for those processes to last for many months or even several years. If no agreement is reached in mediation, the NMB in its discretion may declare that an impasse exists and proffer binding arbitration to the parties. Either party may decline to submit to arbitration, and if arbitration is rejected by either party, a 30-day "cooling off" period commences. During or after that period, a Presidential Emergency Board (PEB) may be established, which examines the parties' positions and recommends a solution. The PEB process lasts for 30 days and is followed by another 30-day "cooling off" period. At the end of this "cooling off" period, unless an agreement is reached or action is taken by Congress, the labor organization may exercise "self-help," such as a strike, which could materially adversely affect our business, results of operations and financial condition. None of the unions representing our employees presently may lawfully engage in concerted slowdowns or refusals to work, such as strikes, sick-outs or other similar activity, against us. Nonetheless, there is a risk that employees, either with or without union involvement, could engage in one or more concerted refusals to work that could individually or collectively harm the operation of our airline and impair our financial performance. Additionally, some of our unions have brought and may continue to bring grievances to binding arbitration, including those related to wages. If successful, there is a risk these arbitral avenues could result in material additional costs that we did not anticipate. See also Part I, Item 1. Business - "Our People-Labor Relations." 32

Changes to our business model that are designed to increase revenues may not be successful and may cause operational difficulties or decreased demand. We have in the past instituted, and intend to institute in the future, changes to our business model designed to increase revenues and offset costs. These measures include further segmentation of the classes of service we offer, such as Premium Economy service and Basic Economy service, enhancements to our AAdvantage program, charging separately for services that had previously been included within the price of a ticket, changes to our practices and contracts with providers of distribution systems to provide additional content flexibility, commercial practices related to ticket distribution channels, including efforts by us to migrate an increasing portion of our customers to our modern, direct distribution channels in lieu of third party channels, changing (whether it be increasing, decreasing or eliminating) other pre-existing fees, reconfiguration of our aircraft cabins, and efforts to optimize our network including by focusing growth on a limited number of large hubs and entering into agreements with other airlines. For example, in 2020, we eliminated change fees for most domestic and international tickets, which has reduced our change fee revenue, a trend which is expected to continue assuming this policy remains in place. We may introduce additional initiatives in the future; however, as time goes on, we expect that it will be more difficult to identify and implement additional initiatives. We cannot assure that these measures or any future initiatives will be successful in increasing our revenues or offsetting our costs. Additionally, the implementation of these initiatives may create logistical challenges that could harm the operational performance of our airline or result in decreased demand. Also, our implementation of any new or increased fees might result in adverse 29 brand perceptions, reputational harm or regulatory scrutiny, and could reduce the demand for air travel on our airline or across the industry in general, particularly if weakened economic conditions make our customers more sensitive to increased travel costs or provide a significant competitive advantage to other carriers that determine not to institute similar charges. Our intellectual property rights, particularly our branding rights, are valuable, and any inability to protect them may adversely affect our business and financial results. We consider our intellectual property rights, particularly our branding rights such as our trademarks applicable to our airline and AAdvantage program, to be a significant and valuable aspect of our business. We protect our intellectual property rights through a combination of trademark, copyright and other forms of legal protection, contractual agreements and policing of third-party misuses of our intellectual property. Our failure to obtain or adequately protect our intellectual property or any change in law that lessens or removes the current legal protections of our intellectual property may diminish our competitiveness and adversely affect our business and financial results. Any litigation or disputes regarding intellectual property may be costly and time-consuming and may divert the attention of our management and key personnel from our business operations, either of which may adversely affect our business and financial results. In addition, we have used certain of our branding and AAdvantage program intellectual property as collateral for various financings (including the AAdvantage Financing, defined in the accompanying notes to the consolidated financial statements to this Annual Report on Form 10-K), which contain covenants that impose restrictions on the use of such intellectual property and, in the case of the AAdvantage Financing, on certain amendments or changes to our AAdvantage program. These covenants may have an adverse effect on our ability to use such intellectual property.

Our ability to utilize our NOLs and other carryforwards may be limited. Under the Internal Revenue Code of 1986, as amended (the Code), a corporation is generally allowed a deduction for net operating losses (NOLs) carried over from prior taxable years. At December 31, 2023, we had approximately $13.7 billion of gross federal NOLs and $4.7 billion of other carryforwards available to reduce future federal taxable income, of which $3.4 billion will expire beginning in 2029 if unused and $15.0 billion can be carried forward indefinitely. We also had approximately $5.5 billion of NOL carryforwards to reduce future state taxable income at December 31, 2023, which will expire in taxable years 2023 through 2043 if unused. Our NOL carryforwards are subject to adjustment on audit by the Internal Revenue Service and the respective state taxing authorities. Additionally, due to the impact of the COVID-19 pandemic and other economic factors, certain of the NOL carryforwards may expire before we can generate sufficient taxable income to use them. 30 Our ability to use our NOLs and other carryforwards depends on the amount of taxable income generated in future periods. There can be no assurance that an additional valuation allowance on our net deferred tax assets will not be required should our financial performance be negatively impacted in the future. Such valuation allowance could be material. A corporation's ability to deduct its federal NOL carryforwards and to utilize certain other available tax attributes can be substantially constrained under the general annual limitation rules of Section 382 of the Code (Section 382) if it undergoes an "ownership change" as defined in Section 382 (generally where cumulative stock ownership changes among material stockholders exceed 50% during a rolling three-year period). In 2013, we experienced an ownership change in connection with our emergence from bankruptcy and US Airways Group, Inc. (US Airways Group) experienced an ownership change in connection with the merger of US Airways Group and AMR Corporation (the Merger). The general limitation rules for a debtor in a bankruptcy case are liberalized where the ownership change occurs upon emergence from bankruptcy. We elected to be covered by certain special rules for federal income tax purposes that permitted approximately $9.0 billion (with $3.0 billion of unlimited NOLs still remaining at December 31, 2023) of our federal NOL carryforwards to be utilized without regard to the annual limitation generally imposed by Section 382. If the special rules are determined not to apply, our ability to utilize such federal NOL carryforwards may be subject to limitation. Potential future transactions involving warrants, stock options, common or preferred stock or other equity, may increase the possibility that the Company will experience a future "ownership change" under Section 382. Substantially all of our remaining federal NOL carryforwards attributable to US Airways Group and its subsidiaries are subject to limitation under Section 382 as a result of the Merger; however, our ability to utilize such NOL carryforwards is not anticipated to be effectively constrained as a result of such limitation. Similar limitations may apply for state income tax purposes. Notwithstanding the foregoing, an ownership change may severely limit or effectively eliminate our ability to utilize our NOL carryforwards and other tax attributes. In connection with the expiration in December 2021 of certain transfer restrictions applicable to substantial shareholders contained in our Certificate of Incorporation, the Board of Directors of AAG adopted a tax benefits preservation plan (the Tax Benefit Preservation Plan) in order to preserve our ability to use our NOLs and certain other tax attributes to reduce potential future income tax obligations. The Tax Benefit Preservation Plan was subsequently ratified by our stockholders at the 2022 Annual Meeting of Stockholders of AAG. The Tax Benefit Preservation Plan is designed to reduce the likelihood that we experience an ownership change by deterring certain acquisitions of AAG common stock. There is no assurance, however, that the deterrent mechanism will be effective, and such acquisitions may still occur. In addition, the Tax Benefit Preservation Plan may adversely affect the marketability of AAG common stock by discouraging existing or potential investors from acquiring AAG common stock or additional shares of AAG common stock, because any non-exempt third party that acquires 4.9% or more of the then-outstanding shares of AAG common stock would suffer substantial dilution of its ownership interest in AAG.

New U.S. tax legislation may adversely affect our financial condition, results of operations and cash flows. We are subject to taxation at the federal, state and local levels in the United States. The U.S. government may enact significant changes to the taxation of business entities. For example, on August 16, 2022, the Inflation Reduction Act was signed into law, introducing, among other changes, a corporate minimum tax on certain corporations and an excise tax on certain stock repurchases by certain corporations. While certain other draft legislation has been proposed, the likelihood of any proposed changes to the tax law being enacted or implemented is unclear, and we are currently unable to predict whether such changes will occur. If any such changes are implemented, we are currently unable to predict the ultimate impact on our business and therefore there can be no assurance our business will not be adversely affected. We have a significant amount of goodwill, which is assessed for impairment at least annually. In addition, we may never realize the full value of our intangible assets or long-lived assets, causing us to record material impairment charges. Goodwill and indefinite-lived intangible assets are not amortized, but are assessed for impairment at least annually, or more frequently if conditions indicate that an impairment may have occurred. In accordance with applicable accounting standards, we first assess qualitative factors to determine whether it is necessary to perform a quantitative impairment test. In addition, we are required to assess certain of our other long-lived assets for impairment if conditions indicate that an impairment may have occurred. Future impairment of goodwill, intangible assets or other long-lived assets could be recorded in results of operations as a result of changes in assumptions, estimates, or circumstances, some of which are beyond our control. There can be no assurance that a material impairment charge of goodwill or tangible or intangible assets will be avoided. The value of our aircraft could be impacted in future periods by changes in supply and demand for these aircraft. Such changes in supply 31 and demand for certain aircraft types could result from grounding of aircraft by us or other airlines, including as a result of significant or prolonged declines in demand for air travel and corresponding reductions to capacity. We can provide no assurance that a material impairment loss of tangible or intangible assets will not occur in a future period; we have previously incurred significant impairment charges associated with our decision to retire certain aircraft as a result of the severe decline in demand for air travel due to the COVID-19 pandemic, and the risk of future material impairments remains uncertain. Such impairment charges could have a material adverse effect on our business, results of operations and financial condition.

The commercial relationships that we have with other companies, including any related equity investments, may not produce the returns or results we expect. An important part of our strategy to expand our network has been to initiate or expand our commercial relationships with other airlines, such as by entering into global alliance, joint business and codeshare relationships, and, in certain instances, including China Southern Airlines, GOL and JetSMART, by making an equity investment in another airline in connection with initiating or expanding such a commercial relationship. We may explore additional investments in, and joint ventures and strategic alliances with, other carriers as part of our global business strategy. We face competition in forming and maintaining these commercial relationships since there are a limited number of potential arrangements and other airlines are looking to enter into similar relationships, and our inability to form or maintain these relationships, or inability to form as many of these relationships as our competitors, may have an adverse effect on our business. Any such existing or future investment could involve significant challenges and risks, including that we may not realize a satisfactory return on our investment, if any, or that they may not generate the expected revenue synergies, and they may distract management focus from our operations or other strategic options. We may also be subject to consequences from any illegal conduct of joint business partners as well as to any political or regulatory change that negatively impacts or prohibits our arrangements with any such business partners. In addition, as a result of the COVID-19 pandemic and subsequent economic recovery, the industry experienced significant volatility in demand for air travel both internationally and domestically, which is expected to continue into the foreseeable future and could materially disrupt our partners' abilities to provide air service, the timely execution of our strategic operating plans, including the finalization, approval and implementation of new strategic relationships or the maintenance or expansion of existing relationships. If any carriers with which we partner or in which we hold an equity stake were to cease trading or be declared insolvent, we could lose the value of any such investment or experience significant operational disruption, which is a risk that we are subject to with respect to our investment in and commercial arrangements with GOL in light of its commencement in January 2024 of bankruptcy proceedings in the U.S. Federal Bankruptcy Court for the Southern District of New York. These events could have a material adverse effect on our business, results of operations and financial condition. We may also from time to time pursue commercial relationships with companies outside the airline industry, which relationships may include equity investments or other financial commitments. Any such relationship or related investment could involve unique risks, particularly where these relationships involve new industry participants, emerging technologies or industries with which we are unfamiliar. Our business is very dependent on the price and availability of aircraft fuel. Continued periods of high volatility in fuel costs, increased fuel prices or significant disruptions in the supply of aircraft fuel could have a significant negative impact on consumer demand, our operating results and liquidity. Our operating results are materially impacted by changes in the availability, price volatility and cost of aircraft fuel, which represents one of the largest single cost items in our business and thus is a significant factor in the price of airline tickets. Market prices for aircraft fuel have fluctuated substantially over the past several years and prices continue to be highly volatile, with market spot prices ranging from a low of approximately $1.32 per gallon to a high of approximately $4.40 per gallon during the period from January 1, 2021 to December 31, 2023. Aircraft fuel prices reflect not only the price of underlying crude oil, but also the price charged to refine crude oil into aircraft fuel (often referred to as the "crack spread"), transportation costs, handling costs and taxes, and increases in any of these underlying components would increase the price we ultimately pay for aircraft fuel. Because of the amount of fuel needed to operate our business, even a relatively small increase or decrease in the price of fuel can have a material effect on our operating results and liquidity. Due to the competitive nature of the airline industry and unpredictability of the market for air travel, we can offer no assurance that we may be able to increase our fares, impose fuel surcharges or otherwise increase revenues or decrease other operating costs sufficiently to offset fuel price increases. Similarly, we cannot predict actions that may be taken by our competitors in response to changes in fuel prices. 32

On May 1, 2021 the EU and United Kingdom entered into a new trade and cooperation agreement (the EU-UK Trade and Cooperation Agreement) to govern certain aspects of their relationship following Brexit. We face risks associated with Brexit, notably given the extent of our passenger and cargo traffic and that of our joint business partners that flows through LHR in the United Kingdom. The EU-UK Trade and Cooperation Agreement includes provisions in relation to commercial air service that we expect to be sufficient to sustain our current services under the transatlantic joint business. However, the scope of traffic rights under the EU-UK Trade and Cooperation Agreement is less extensive than before Brexit and therefore the full impact of the EU-UK Trade and Cooperation Agreement is uncertain. For example, on December 4, 2023, the United Kingdom government launched a consultation on the reform of the rules applicable to airport slots in the United Kingdom. At this stage, the impact of this consultation and any consequent changes to the United Kingdom slot rules on our operations or those of our joint business partners at LHR is uncertain, but could be material. As a result, the continuation of our current services, and those of our partners could be disrupted. This could materially adversely affect our business, results of operations and financial condition. More generally, changes in U.S. or foreign government aviation policies could result in the alteration or termination of such agreements, diminish the value of route authorities, slots or other assets located abroad, or otherwise adversely affect our international operations. We operate a global business with international operations that are subject to economic and political instability and have been, and in the future may continue to be, adversely affected by numerous events, circumstances or government actions beyond our control. We operate a global business with significant operations outside of the U.S. Our current international activities and prospects have been, and in the future could be, adversely affected by government policies, reversals or delays in the opening of foreign markets, increased competition in international markets, the performance of our alliance, joint business and codeshare partners in a given market, exchange controls or other restrictions on repatriation of funds, currency and political risks (including changes in exchange rates and currency devaluations), environmental regulation, increases in taxes and fees and changes in international governmental regulation of our operations, including the inability to obtain or retain needed route authorities and/or slots, and new or evolved policies related to consumer protections. In particular, the COVID-19 pandemic severely impacted the demand for international travel for a prolonged period, and resulted in the imposition of significant governmental restrictions on commercial air service to or from certain regions. We responded by temporarily suspending a significant portion of our long-haul international flights and delaying the introduction of certain new long-haul international routes. While many countries have largely eliminated their pandemic restrictions, we can provide no assurance as to when demand for international travel will return to pre-COVID-19 pandemic levels in certain markets, if at all, or whether certain international destinations we previously served will be economical in the future. We are subject to varying registration requirements and ongoing reporting obligations in the countries where we operate. Our permission to continue doing business in these countries may depend on our ability to timely fulfil or remedy any noncompliance with these and other governmental requirements. We may also be subject to the risk that relevant government agencies will be delayed in granting or renewing required approvals, including as a result of shutdowns (such as occurred in certain jurisdictions during the COVID-19 pandemic), cybersecurity incidents or other events. Any lapse, revocation, suspension or delay in approval of our authority to do business in a given jurisdiction may prevent us from serving certain destinations and could adversely impact our business, financial condition and results of operations. More generally, our industry may be affected by any deterioration in global trade relations, including shifts in the trade policies of individual nations. For example, much of the demand for international air travel is the result of business travel in support of global trade. Should protectionist governmental policies, such as increased tariff or other trade barriers, travel limitations and other regulatory actions, have the effect of reducing global commercial activity, the result could be a material decrease in the demand for international air travel. Additionally, certain of the products and services that we purchase, including certain of our aircraft and related parts, are sourced from suppliers located outside the U.S., and the imposition of new tariffs, or any increase in existing tariffs, by the U.S. government in respect of the importation of such products could materially increase the amounts we pay for them. We face risks associated with Brexit, notably given the extent of our passenger and cargo traffic and that of our joint business partners that flows through LHR in the United Kingdom. The EU-UK Trade and Cooperation Agreement includes provisions in relation to commercial air service that we expect to be sufficient to sustain our current services under the transatlantic joint business. However, the scope of traffic rights under the EU-UK Trade and Cooperation Agreement is less extensive than before Brexit and therefore the full impact of the EU-UK Trade and Cooperation Agreement is uncertain. As a result, the continuation of our current services, and those of our partners could be disrupted. Moreover, 36

•the adoption of more restrictive locally-imposed noise restrictions; and •restrictions on travel or special guidelines regarding aircraft occupancy or hygiene in response to outbreaks of illness, such as occurred during the COVID-19 pandemic, including the imposition of preflight testing regimes or vaccination confirmation requirements which have in the past and may in the future have the effect of reducing demand for air travel in the markets where such requirements are imposed. Each additional regulation or other form of regulatory oversight increases costs and adds greater complexity to airline operations and, in some cases, may reduce the demand for air travel. There can be no assurance that the increased costs or greater complexity associated with our compliance with new rules, anticipated rules or other forms of regulatory oversight will not have a material adverse effect on us. Any significant reduction in air traffic capacity at and in the airspace serving key airports in the U.S. or overseas could have a material adverse effect on our business, results of operations and financial condition. In addition, the ATC system is not successfully modernizing to meet the growing demand for U.S. air travel. Air traffic controllers rely on outdated procedures and technologies that routinely compel airlines, including ourselves, to fly inefficient routes or take significant delays on the ground. The ATC system's inability to manage existing travel demand, including due to significant staffing shortages, has led government agencies to implement short-term capacity constraints during peak travel periods or adverse weather conditions in certain markets, resulting in delays and disruptions of air traffic. The outdated technologies also cause the ATC system to be less resilient in the event of a failure, and past system disruptions have resulted in large-scale flight cancellations and delays. We experienced this challenge in January 2023 when an outage in the ATC Notice to Air Missions system led to a nationwide ground-stop for nearly two hours, resulting in significant operational disruption throughout the day. In the early 2000s, the FAA embarked on a path to modernize the national airspace system, including migration from the current radar-based ATC system to a GPS-based system. This modernization of the ATC system, generally referred to as "NextGen," has been plagued by delays and cost overruns, and it remains uncertain when the full array of benefits expected from this modernization will be available to the public and the airlines, including ourselves. Failure to update the ATC system and the substantial costs that may be imposed on airlines, including ourselves, to fund a modernized ATC system may have a material adverse effect on our business. Further, our business has been adversely impacted when government agencies have ceased to operate as expected, including due to partial shutdowns, sequestrations or similar events and the COVID-19 pandemic. These events have resulted in, among other things, reduced demand for air travel, an actual or perceived reduction in air traffic control and security screening resources and related travel delays, as well as disruption in the ability of the FAA to grant required regulatory approvals, such as those that are involved when a new aircraft is first placed into service. Our operating authority in international markets is subject to aviation agreements between the U.S. and the respective countries or governmental authorities, such as the EU, and in some cases, fares and schedules require the approval of the DOT and/or the relevant foreign governments. Moreover, alliances with international carriers may be subject to the jurisdiction and regulations of various foreign agencies. The U.S. government has negotiated "open skies" agreements with more than 130 trading partners, which agreements allow unrestricted route authority access between the U.S. and the foreign markets. While the U.S. has worked to increase the number of countries with which open skies agreements are in effect, a number of markets important to us, including China, do not have open skies agreements. For example, the open skies air services agreement between the U.S. and the EU, which took effect in March 2008, provides airlines from the U.S. and EU member states open access to each other's markets, with freedom of pricing and unlimited rights to fly from the U.S. to any airport in the EU. As a result of the agreement and a subsequent open skies agreement involving the U.S. and the United Kingdom, which was agreed in anticipation of Brexit, we face increased competition in these markets, including LHR. Bilateral and multilateral agreements among the U.S. and various foreign governments of countries we serve but which are not covered by an open skies treaty are subject to periodic renegotiation. We currently operate a number of international routes under government arrangements that limit the number of airlines permitted to operate on the route, the capacity of the airlines providing services on the route, or the number of airlines allowed access to particular airports. If an open skies policy were to be adopted for any of these markets, it could adversely impact us and could result in impairments of our related tangible and intangible assets. In addition, competition from foreign airlines, revenue-sharing 35 joint ventures, joint business agreements, and other alliance arrangements by and among other airlines could impair the value of our business and assets on the open skies routes.

software failures, computer viruses or telecommunications failures. When service interruptions occur as a result of any of the aforementioned events, we address them in accordance with applicable laws, rules and regulations. However, substantial or sustained system failures could cause service delays or failures and result in our customers purchasing tickets from other airlines. We cannot assure that our security measures, change control procedures or disaster recovery plans are adequate to prevent disruptions or delays. Disruption in or changes to these technologies or systems could result in a disruption to our business and the loss of important data. Any of the foregoing could result in a material adverse effect on our business, results of operations and financial condition. Evolving data privacy requirements (in particular, compliance with applicable federal, state and foreign laws relating to handling of personal information about individuals) could increase our costs, and any significant data privacy incident could disrupt our operations, harm our reputation, expose us to legal risks and otherwise materially adversely affect our business, results of operations and financial condition. In the normal course of our business, we collect, process, use and disclose personal information about individuals and rely on third party service providers to host or otherwise process personal information. Many federal, state and foreign governmental bodies and agencies have adopted, or are considering adopting, laws and regulations that impose limits on the collection, processing, use, disclosure and security of personal information about individuals. In some cases, such laws and regulations can be enforced by private parties in addition to government entities. In addition, privacy advocacy and industry groups may propose new and different self-regulatory standards or guidance that may legally or contractually apply to us and our vendors. These non-uniform laws, regulations, standards and guidance are complex and currently evolving and can be subject to significant change and interpretation, and may be inconsistently applied and enforced from one jurisdiction to another. Our business requires the secure processing and storage of personal information relating to our customers, employees, business partners and others, and other data such as confidential information. However, like any global enterprise operating in today's digital business environment, we and our third party service providers have experienced cybersecurity incidents and data breaches. For example, in July 2022, a minor phishing incident resulted in certain employee email accounts being accessed and acquired without authorization that contained personal information about a very limited number of individuals, including travelers (following which we notified the individuals). We react and respond to these cybersecurity incidents in accordance with the applicable legal requirements, our own cybersecurity protocols, as well as our commercial partners' standards (as appropriate), but we cannot ensure that our responses (or those of our partners and service providers) will be sufficient to prevent or mitigate the potential adverse impacts of these cybersecurity incidents, which may be material. There has been heightened legislative and regulatory focus on data privacy and cybersecurity in the U.S., EU, U.K., China and elsewhere, particularly with respect to critical infrastructure providers, including those in the transportation sector. As a result, we must comply with a proliferating and fast-evolving set of legal requirements in this area, including substantive data privacy and cybersecurity standards as well as requirements for notifying regulators and affected individuals in the event of a cybersecurity incident. In addition, we are subject to an increasing number of reporting obligations in respect of material cybersecurity incidents. These reporting requirements have been proposed or implemented by a number of regulators in different jurisdictions, may vary in their scope and application, and could contain conflicting requirements. Certain of these rules and regulations may require us to report a cybersecurity incident before we have been able to fully assess its impact or remediate the underlying issue. Efforts to comply with such reporting requirements could divert management's attention from our cybersecurity incident response and could potentially reveal system vulnerabilities to threat actors. Failure to timely report cybersecurity incidents under these rules could also result in regulatory investigations, litigation, monetary fines, sanctions, or subject us to other forms of liability. Even though we believe we and our third party service providers are generally in compliance with applicable laws, rules and regulations relating to privacy and data security, the regulatory environment is increasingly challenging as data privacy and cybersecurity laws, rules, regulations, industry standards and other requirements are continually developing. These changing requirements, along with their evolving application, interpretation, and amendment, may present material obligations and risks to our business, including significantly expanded compliance burdens, costs and enforcement risks.

In addition, many of our commercial partners, including credit card companies, have imposed data security standards that we must meet. In particular, we are required by the Payment Card Industry Security Standards Council, founded by the credit card companies, to comply with their highest level of data security standards (the Payment Card Industry Data Security Standard (PCI DSS)). While we and our service providers continue our efforts to meet these standards, new and revised standards may be imposed that may be difficult for us to meet and could increase our costs, and if we are unable to comply with revised standards, we may be subject to fines, restrictions or other liability, which could materially and 42 adversely affect our business. Moreover, it is not guaranteed that PCI DSS compliance will prevent illegal or improper use of our payment systems or the theft, loss or misuse of payment card data or transaction information. Litigation, claims and enforcement related to data privacy, biometrics and other provisions of state privacy laws may involve new interpretations of privacy laws. There has also been a noticeable uptick in class actions in the U.S. wherein plaintiffs have utilized a variety of laws, including state wiretapping laws, in relation to companies' use of tracking technologies, such as cookies and pixels. Compliance with these laws and regulations may be inconsistent from jurisdiction to jurisdiction, increasing the cost of compliance and our risk of liability from litigation. Any litigation, claims or enforcement actions to which we are or become a party could potentially result in substantial monetary damages or fines, and negative reputational impacts that cause us to lose existing or future customers, which could materially adversely affect our business, results of operations and financial condition. We are exposed to risks from cyberattacks, and any cybersecurity incidents involving us, our third-party service providers, or one of our AAdvantage partners or other business partners, could materially adversely affect our business, results of operations and financial condition. Significant cybersecurity incidents involving us, our third-party service providers, or one of our AAdvantage partners or other business partners, have in the past and may in the future result in a range of potentially material negative consequences for us, including unauthorized access to, disclosure, modification, misuse, loss or destruction of company systems or data; theft of sensitive, regulated or confidential data, such as personal information or our intellectual property; the loss of functionality of critical systems through ransomware, denial of service or other cyberattacks; a diminished ability to retain or attract new customers; a deterioration in our relationships with business partners and other third parties; interruptions or failures in our payment related systems; and business delays, service or system disruptions, damage to equipment and injury to persons or property. The methods used to obtain unauthorized access, disable or degrade service or sabotage systems are constantly evolving and may be difficult to anticipate or to detect for long periods of time. The constantly changing nature of the threats means that we cannot and have not been able to prevent all data security breaches or misuse of data, and there is a risk that our security measures will not be fully effective in the future. Similarly, we depend on the ability of our key commercial partners, including AAdvantage partners, other business partners, our regional carriers, distribution partners and technology vendors, to conduct their businesses in a manner that complies with applicable security standards and assures their ability to perform on a timely basis. A security failure, including a failure to meet PCI DSS requirements, breach or other significant cybersecurity incident affecting one of our partners, interruptions or failures in our payment related systems, could result in potentially material negative consequences for us, including loss of critical data, service interruptions, delays in operations, and the potential for fines, restrictions and expulsion from card acceptance programs. In addition, we use third party service providers to help us deliver services to customers. These service providers may store personal information, credit card information and/or other confidential information. Such information has been and will be the target of unauthorized access or subject to security breaches because of third-party action, employee error, malfeasance or otherwise. Any of these could (a) result in the loss of information, litigation, indemnity obligations, expensive and inconsistent cybersecurity incident and data breach notification requirements, damage to our reputation, regulatory scrutiny, and other liability, or (b) have a material adverse effect on our business, financial condition and results of operations.

The success of our business depends on, among other things, effectively managing the number and types of aircraft we operate. If, for any reason, we are unable to accept or secure deliveries of new aircraft on contractually scheduled delivery timelines, our business, results of operations and financial condition could be negatively impacted. Our failure to integrate newly purchased aircraft into our fleet as planned might require us to seek extensions of the terms for some leased aircraft or otherwise delay the exit of certain aircraft from our fleet. Such unanticipated extensions or delays, which as noted above have recently been relatively commonplace among manufacturers of commercial aircraft, may require us to operate existing aircraft beyond the point at which it is economically optimal to retire them, resulting in increased maintenance costs, or reductions to our schedule, thereby reducing revenues. Repeated or prolonged delays in the production, delivery or induction of our new aircraft could also require us to scale back our growth plans, reduce frequencies or forgo service entirely to certain markets, which could adversely affect our business, financial condition and results of operations. We rely heavily on technology and automated systems to operate our business, and any failure of these technologies or systems could harm our business, results of operations and financial condition. We are highly dependent on existing and emerging technology and automated systems to operate our business. These technologies and systems include but may not be limited to our computerized airline reservation system, flight operations and crew scheduling systems, financial planning, management and accounting systems, telecommunications systems, website, maintenance systems and check-in kiosks. In order for our operations to work efficiently, our website and reservation system must be able to accommodate a high volume of traffic, maintain secure information and deliver flight information, as well as issue electronic tickets and process critical financial information in a timely manner. Substantially all of our tickets are issued to passengers as electronic tickets. We depend on our reservation system, which is hosted and maintained under a long-term contract by a third-party service provider, to be able to issue, track and accept these electronic tickets. If our technologies or automated systems are not functioning or if our third-party service providers were to fail to adequately provide technical support, system maintenance or timely software upgrades for any one of our key existing systems, we could experience service disruptions or delays, which could harm our business and result in the loss of important data, increase our expenses and decrease our revenues. Furthermore, certain critical aspects of our operation rely on legacy technological systems which may grow more difficult or expensive to support and maintain over time, and such systems may fail to perform as required or become more vulnerable to malfunction or failure over time. In the event that one or more of our primary technology or systems vendors goes into bankruptcy, ceases operations or fails to perform as promised, replacement services may not be readily available on a timely basis, at competitive rates or at all, and any transition time to a new system may be significant. Our aircraft employ a number of sophisticated radio and satellite-based navigation and safety technologies, and we are subject to risks associated with the introduction or expansion of technologies that could interfere with the safe operation of these flight systems. For example, telecommunications companies are expanding and increasing the commercial and consumer applications of 5G cellular communication networks, and regulators, manufacturers and operators have expressed concerns that certain 5G applications could interfere with certain flight systems. On December 23, 2021, the FAA issued a special airworthiness information bulletin (SAIB), in which it indicated that further testing and assessment is needed regarding the effects of 5G on certain aircraft equipped with radar altimeters, which measure the aircraft's altitude and guide pilots during landings. If it were determined that 5G signals posed an interference risk to these altimeters or other systems, the FAA indicated in its SAIB that it could restrict flight operations in areas where such interference could occur. On June 17, 2022, the FAA and the telecommunications industry reached an agreement to delay the full implementation of 5G deployment near airports until July 1, 2023. The delayed implementation allowed the aviation industry time to retrofit the radio altimeters on aircraft to prevent potential interference from 5G signals. American has completed the retrofit of its impacted mainline and regional aircraft, and we now expect operational certainty as it pertains to 5G until 2028, when the current operating agreement between the FAA, Federal Communications Commission and the telecommunications industry expires. Our technologies and automated systems are not completely protected against events that are beyond our control, including natural disasters, power failures, terrorist attacks, cyberattacks, data theft, defects, errors, equipment and 41

We rely on third-party distribution channels and must effectively manage the costs, rights and functionality of these channels. While our priority is to migrate an increasing portion of our customers to our modern, direct distribution channels in lieu of third party channels, we continue to rely on third-party distribution channels, including those provided by or through global distribution systems (GDSs) (e.g., Amadeus, Sabre and Travelport), conventional travel agents, travel management companies and online travel agents (OTAs) (e.g., Expedia, including its booking sites Orbitz and Travelocity, and Booking Holdings, including its booking sites Kayak and Priceline), to distribute a significant portion of our airline tickets, and we expect in the future to continue to rely on these channels. We are also dependent upon the ability and willingness of these distribution channels to expand their ability to distribute and collect revenues for ancillary products (e.g., fees for selective seating). These distribution channels are more expensive and at present have less functionality in respect of ancillary product offerings than those we operate ourselves, such as our website at www.aa.com. Certain of these distribution channels also effectively restrict the manner in which we distribute our products generally. To remain competitive, we will need to manage successfully our distribution costs and rights, increase our distribution flexibility, continue to migrate the distribution of tickets to our proprietary and other modern distribution channels, and improve the functionality of our distribution channels, while maintaining an industry-competitive cost structure and a high level of customer satisfaction. Further, as distribution technology changes we will need to continue to update our technology by acquiring new technology from third parties, building the functionality ourselves, or a combination, which in any event will likely entail significant technological and commercial risk and involve potentially material investments. These imperatives may affect our relationships with conventional travel agents, travel management companies, GDSs and OTAs, including if consolidation of conventional travel agents, travel management companies, GDSs or OTAs continues, or should any of these parties seek to acquire other technology providers thereby potentially limiting our technology alternatives. Any inability to manage our third-party distribution costs, rights and functionality at a competitive level or any material diminishment or disruption in the distribution of our tickets could have a material adverse effect on our business, results of operations and financial condition. If we are unable to obtain and maintain adequate facilities and infrastructure throughout our system and, at some airports, adequate slots, we may be unable to operate our existing flight schedule and to expand or change our route network in the future, which may have a material adverse impact on our operations. In order to operate our existing and proposed flight schedule and, where desirable, add service along new or existing routes, we must be able to maintain and/or obtain adequate gates, check-in counters, operations areas, operations control facilities and administrative support space. As airports around the world become more congested, it may not be possible for us to ensure that our plans for new service can be implemented in a commercially viable manner, given operating constraints at airports throughout our network, including those imposed by inadequate facilities at desirable airports. In light of constraints on existing facilities, there is presently a significant amount of capital spending underway at major airports in the United States, including large projects underway at a number of airports where we have significant operations, such as O'Hare International Airport, Dallas/Fort Worth International Airport and Los Angeles International Airport. More generally, following long periods of underinvestment, there is a trend among airports in the United States to engage in significant, expensive expansion, remodeling and infrastructure improvement projects. This spending is expected to result in increased costs to airlines and the traveling public that use those facilities as the airports seek to 44 recover their investments through increased rental, landing and other facility costs. In some circumstances, such costs could be imposed by the relevant airport authority without our approval. Accordingly, our operating costs are expected to increase significantly at many airports at which we operate, including a number of our hubs and gateways, as a result of capital spending projects currently underway and additional projects that we expect to commence over the next several years.

We will need to obtain sufficient financing or other capital to operate successfully. Our business plan contemplates continued significant investments related to our fleet, improving the experience of our customers and updating our facilities. Significant capital resources will be required to execute this plan. We estimate that, based on our commitments as of December 31, 2023, our planned aggregate expenditures for aircraft purchase commitments and certain engines for calendar years 2024 through 2028 would be approximately $11.7 billion. We may also require financing to refinance maturing obligations and to provide liquidity to fund other corporate requirements. Accordingly, we will need substantial liquidity, financing or other capital resources to finance such aircraft and engines and meet such other liquidity needs. If needed, it may be difficult for us to raise additional capital on acceptable terms, or at all, due to, among other factors: our substantial level of existing indebtedness, particularly following transactions we completed in response to the impact of the COVID-19 pandemic; our non-investment grade credit rating; volatile or otherwise unfavorable market conditions; and the availability of assets to use as collateral for loans or other indebtedness, which has been reduced significantly as a result of certain financing transactions we have undertaken since the beginning of 2020 and may be further reduced. If we are unable to arrange any such required financing at customary advance rates and on terms and conditions acceptable to us, we may need to use cash from operations or cash on hand to purchase aircraft and engines or fund our other corporate requirements, or may seek to negotiate deferrals for such aircraft and engines with the applicable manufacturers or otherwise defer corporate obligations. Depending on numerous factors applicable at the time we seek capital, many of which are out of our control, such as the state of the domestic and global economies, the capital and credit markets' view of our prospects and the airline industry in general, and the general availability of debt and equity capital, the financing or other capital resources that we will need may not be available to us, or may be available only on onerous terms and conditions. Furthermore, we hold significant balances of cash and short-term investments, including as necessary to conduct our day-to-day operations, some of which are held in deposit accounts at commercial banks in excess of the government-provided deposit insurance. There can be no assurance that we will be successful in obtaining financing or other needed sources of capital to operate successfully or to fund our committed expenditures. An inability to obtain necessary financing on acceptable terms would limit our ability to execute necessary capital projects and would have a material adverse impact on our business, results of operations and financial condition. Our high level of debt and other obligations may limit our ability to fund general corporate requirements and obtain additional financing, may limit our flexibility in responding to competitive developments and may cause our business to be vulnerable to adverse economic and industry conditions. We have significant amounts of indebtedness and other financial obligations, including pension obligations, obligations to make future payments on flight equipment and property leases related to airport and other facilities, and substantial non-cancelable obligations under aircraft and related spare engine purchase agreements. Moreover, currently a very significant portion of our assets are pledged to secure our indebtedness. Our substantial indebtedness and other obligations, which are generally greater than the indebtedness and other obligations of our competitors, could have important consequences. For example, they may: •make it more difficult for us to satisfy our obligations under our indebtedness; •limit our ability to obtain additional funding for working capital, capital expenditures, acquisitions, investments and general corporate purposes, and adversely affect the terms on which such funding can be obtained; •require us to dedicate a substantial portion of our liquidity or cash flow from operations to payments on our indebtedness and other obligations, thereby reducing the funds available for other purposes; •make us more vulnerable to economic downturns, industry conditions and catastrophic external events, particularly relative to competitors with lower relative levels of financial leverage; •significantly constrain our ability to respond, or respond quickly, to unexpected disruptions in our own operations, the U.S. or global economies, or the businesses in which we operate, or to take advantage of opportunities that would improve our business, operations, or competitive position versus other airlines; •limit our ability to withstand competitive pressures and reduce our flexibility in responding to changing business and economic conditions; •bear interest at floating rates, subjecting us to volatility in interest expenses as interest rates fluctuate; •contain covenants requiring us to maintain an aggregate of at least $2.0 billion of unrestricted cash and cash equivalents and amounts available to be drawn under revolving credit facilities and collateral coverage ratios and peak debt service coverage ratios;

Risks Related to Ownership of AAG Common Stock and Convertible Notes The price of AAG common stock has been and may in the future be volatile. The market price of AAG common stock has fluctuated substantially in the past, and may fluctuate substantially in the future, due to a variety of factors, many of which are beyond our control, including: •the effects of external events, such as the COVID-19 pandemic, on our business or the U.S. and global economies; •macro-economic conditions, including the price of fuel; •changes in market values of airline companies as well as general market conditions; •our operating and financial results failing to meet the expectations of securities analysts or investors; •changes in financial estimates or recommendations by securities analysts; •changes in our level of outstanding indebtedness and other obligations; •changes in our credit ratings; •material announcements by us or our competitors; 46 •expectations regarding any future capital deployment program, including share repurchase programs and any future dividend payments that may be declared by our Board of Directors, or any subsequent determination to cease repurchasing stock or paying dividends; •new regulatory pronouncements and changes in regulatory guidelines; •general and industry-specific economic conditions; •changes in our key personnel; •inclusion of our common stock in broad market indexes favored by passive investors; •investor preferences to invest in certain sectors, including large technology companies in lieu of industrial or transportation companies; •public or private sales of a substantial number of shares of AAG common stock or issuances of AAG common stock upon the exercise or conversion of restricted stock unit awards, stock appreciation rights, or other securities that may be issued from time to time, including warrants we have issued in connection with our receipt of funds under the CARES Act, the PSP Extension Law and the ARP; •increases or decreases in reported holdings by insiders or other significant stockholders;

•fluctuations in trading volume; and •technical factors in the public trading market for our stock that may produce price movements that may or may not comport with macro, industry or company-specific fundamentals, including, without limitation, the sentiment of retail investors (including as may be expressed on financial trading and other social media sites), the amount and status of short interest in our securities, access to margin debt, trading in options and other derivatives on our common stock and any related hedging and other technical trading factors. The closing price of our common stock on the Nasdaq Global Select Market varied from $10.92 to $18.80 during 2023 and $12.93 to $15.36 during 2024 year-to-date through February 16, 2024. At times, fluctuations in our stock price have been rapid, imposing risks on investors due to the possibility of significant, short-term price volatility. While we believe that in recent years this wide range of trading prices has largely reflected the changing prospects for a large airline facing the challenges imposed by the COVID-19 pandemic, we also believe, based in part on the commentary of market analysts, that the trading price of our common stock has at times been influenced by the technical trading factors discussed in the last bullet above. On some occasions, market analysts have explained fluctuations in our stock price by reference to purported "short squeeze" activity. A "short squeeze" is a technical market condition that occurs when the price of a stock increases substantially, forcing market participants who had taken a position that its price would fall (i.e., who had sold the stock "short"), to buy it, which in turn may create significant, short-term demand for the stock not for fundamental reasons, but rather due to the need for such market participants to acquire the stock in order to forestall the risk of even greater losses. A "short squeeze" condition in the market for a stock can lead to short-term conditions involving very high volatility and trading that may or may not track fundamental valuation models. If we decide to make repurchases of or pay dividends on our common stock, we cannot guarantee that we will continue to do so or that such a capital deployment program will enhance long-term stockholder value. If we determine to make any share repurchases in the future, such repurchases may be made through a variety of methods, which may include open market purchases, privately negotiated transactions, block trades or accelerated share repurchase transactions. Our future repurchases of AAG common stock, if any, may be limited, suspended or discontinued at any time at our discretion and without prior notice. If we determine to make any dividends in the future, such dividends that may be declared and paid from time to time will be subject to market and economic conditions, applicable legal requirements and other relevant factors. The amount and timing of any future dividends, if any, may vary, and the payment of any dividend does not assure that we will pay dividends in the future. In addition, any future repurchases of AAG common stock or payment of dividends, or any determination to cease repurchasing stock or paying dividends, could affect our stock price and increase its volatility. The existence of a future share repurchase program and any future dividends could cause our stock price to be higher than it would otherwise be and could potentially reduce the market liquidity for our stock. Additionally, any future repurchases of AAG common stock 47 or payment of dividends will diminish our cash reserves, which may impact our ability to finance future growth and to pursue possible future strategic opportunities and acquisitions. Further, our repurchase of AAG common stock may fluctuate such that our cash flow may be insufficient to fully cover our share repurchases. Under the recently enacted IRA, we may become subject to an excise tax on the fair market value of AAG common stock repurchased after December 31, 2022, which may adversely affect our financial condition. Although our share repurchase programs are intended to enhance long-term stockholder value, there is no assurance that they will do so. AAG's Certificate of Incorporation, Bylaws and Tax Benefit Preservation Plan include provisions that limit voting and acquisition and disposition of our equity interests and specify an exclusive forum for certain stockholder disputes. Our Certificate of Incorporation and Bylaws include significant provisions that limit voting and ownership and disposition of our equity interests as described in Part II, Item 5. Market for American Airlines Group's Common Stock, Related Stockholder Matters and Issuer Purchases of Equity Securities - "Ownership Restrictions" and AAG's Description of the Registrants' Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934, which is filed as Exhibit 4.1 hereto. Further restrictions are set forth in our Tax Benefit Preservation Plan, which was filed as Exhibit 4.1 to AAG's Current Report on Form 8-K filed on December 22, 2021. These restrictions may adversely affect the ability of certain holders of AAG common stock and our other equity interests to vote such interests and adversely affect the ability of persons to acquire shares of AAG common stock and our other equity interests.

If our financial condition worsens, provisions in our credit card processing and other commercial agreements may adversely affect our liquidity. We have agreements with companies that process customer credit card transactions for the sale of air travel and other services. These agreements allow these credit card processing companies, under certain conditions (including, with respect to certain agreements, our failure to maintain certain levels of liquidity), to hold an amount of our cash (referred to as a holdback) equal to some or all of the advance ticket sales that have been processed by that credit card processor, but for which we have not yet provided the air transportation. Additionally, such credit card processing companies may require cash or other collateral reserves to be established. These credit card processing companies are not currently entitled to maintain any holdbacks pursuant to these requirements. These holdback requirements can be implemented at the discretion of the credit card processing companies upon the occurrence of specific events, including material adverse changes in our financial condition or the triggering of a liquidity covenant. The imposition of holdback requirements, up to and including 100% of relevant advanced ticket sales, would materially reduce our liquidity. Likewise, other of our commercial agreements contain provisions that allow counterparties to impose less-favorable terms, including the acceleration of amounts due, in the event of material adverse changes in our financial condition. For example, we maintain certain letters of credit as well as insurance- and surety-related agreements under which counterparties may require collateral, including cash collateral. 23 The loss of key personnel upon whom we depend to operate our business or the inability to attract, develop and retain additional qualified personnel could adversely affect our business. We believe that our future success will depend in large part on our ability to attract, develop and retain highly qualified management, technical and other personnel. Retaining and recruiting people with the appropriate skills is particularly challenging as the economy in general, and the airline industry in particular, continue to recover from the COVID-19 pandemic, resulting in competition for the human resources necessary to operate our business successfully. We may not be successful in attracting, developing or retaining key personnel or other highly qualified personnel. In addition, competition for skilled personnel has intensified and may continue to intensify if overall industry capacity continues to increase and/or we were to incur attrition at levels higher than we have historically. Any inability to attract, develop and retain significant numbers of qualified management and other personnel would have a material adverse effect on our business, results of operations and financial condition. Our business has been and will continue to be materially affected by many changing economic, geopolitical, commercial, regulatory and other conditions beyond our control, including global events that affect travel behavior, and our results of operations could be volatile and fluctuate materially due to changes in such conditions. Our business, results of operations and financial condition have been and will continue to be affected by many changing economic, geopolitical, commercial, regulatory and other conditions beyond our control, including, among others: •actual or potential changes in international, national, regional and local economic, business and financial conditions, including recession, inflation and higher interest rates; •the occurrence of wars, conflicts, terrorist attacks and geopolitical instability; •changes in consumer preferences, perceptions, spending patterns and demographic trends; •changes in the competitive environment due to industry consolidation, changes in airline alliance affiliations and other factors; •delays in scheduled aircraft deliveries, unexpected grounding of aircraft or aircraft engines whether by regulators or by us, or other loss of anticipated fleet capacity, and failure of new aircraft to receive regulatory approval, be produced or otherwise perform as and when expected; •actual or potential disruptions to the U.S. National Airspace System (the ATC system); •increases in costs of safety, security and environmental measures; •increases in costs related to meeting our climate goals or obligations, including in respect of the costs to be incurred to migrate to increased use of SAF in lieu of conventional aviation fuel;

The airline industry is intensely competitive and dynamic. Our competitors include other major domestic airlines and foreign, regional and new entrant airlines, as well as joint ventures formed by some of these airlines, many of which have greater financial or other resources and/or lower cost structures than ours, as well as other forms of transportation, such as rail and private automobiles or alternatives to commuting or business travel including remote or flexible working policies and communication alternatives such as videoconferencing. In many of our markets, we compete with at least one low-cost carrier (including so-called ultra-low-cost carriers). Our revenues are sensitive to the actions of other carriers in many areas, including pricing, scheduling, capacity, fees (including cancellation, change and baggage fees), amenities, loyalty benefits and promotions, which can have a substantial adverse impact not only on our revenues, but on overall industry revenues. These factors may become even more significant in periods when the industry experiences large losses (such as occurred during the COVID-19 pandemic), as airlines under financial stress, or in bankruptcy, may institute pricing or fee structures intended to attract more customers to achieve near-term survival at the expense of long-term viability. Low-cost carriers (including so-called ultra-low-cost carriers) have a profound impact on industry revenues. Using the advantage of low unit costs, these carriers offer lower fares in order to shift demand from larger, more established airlines, and represent significant competitors, particularly for customers who fly infrequently or are price sensitive and therefore tend not to be loyal to any one particular carrier. Many of these carriers, including several that have recently commenced operations, have announced growth strategies including commitments to acquire significant numbers of new aircraft for delivery in the next few years. These low-cost carriers are attempting to continue to increase their market share through growth and consolidation, and are expected to continue to have an impact on our revenues and overall performance. We and several other large network carriers have implemented "Basic Economy" fares designed to more effectively compete against low-cost carriers, but we cannot predict whether these initiatives will be successful. While historically these carriers have provided competition in domestic markets, we have recently experienced new competition from low-cost carriers on international routes, including low-cost airlines executing international long-haul expansion strategies, a trend likely to continue, in particular with the planned introduction of long-range narrowbody aircraft in coming years. Additionally, other carriers focused on premium passenger travel are attempting to implement growth strategies. The actions of existing or future carriers, including those described above, could have a material adverse effect on our operations and financial performance. In certain instances, other air carriers are attempting to operate scheduled service with a business model that relies on FAA Part 135, a regulatory environment that is generally less stringent than the rules applicable to our airline and similar airlines that operate under FAA Part 121 and which provides those airlines certain competitive advantages that Part 121 airlines cannot replicate. We have objected to the DOT and TSA that the less stringent Part 135 rules were never intended as a basis for scheduled passenger service and that business model should not be permissible, and the agencies' review is ongoing. A DOT or TSA decision to allow scheduled passenger service under Part 135 and the actions of existing or future carriers using that business model, including those described above, could adversely impact our business, financial condition and results of operations. We provide air travel internationally, directly as well as through joint businesses, strategic alliances, codeshare and similar arrangements to which we are a party. While our network is comprehensive, compared to some of our key global competitors, we generally have somewhat greater relative exposure to certain regions (for example, Latin America) and somewhat lower relative exposure to others (for example, Asia). Our financial performance relative to our key competitors will therefore be influenced significantly by macro-economic conditions in particular regions around the world and the relative exposure of our network to the markets in those regions, including the duration of any declines in demand for 25 travel to specific regions as a result of health emergencies (such as during the COVID-19 pandemic), geopolitical instability or other factors, and the speed with which demand for travel to these regions returns. Our international service exposes us to foreign economies and the potential for reduced demand when any foreign country we serve suffers adverse local economic conditions or if governments restrict commercial air service to or from any of these markets. For example, the COVID-19 pandemic resulted in a precipitous and prolonged decline in demand for air travel, in particular international travel, in part as a result of the imposition by the U.S. and foreign governments of restrictions on travel from certain regions. In addition, open skies agreements, which are now in place with a substantial number of countries around the world, provide international airlines with open access to U.S. markets, potentially subjecting us to increased competition on our international routes. See also "Our business is subject to extensive government regulation, which may result in increases in our costs, disruptions to our operations, limits on our operating flexibility, reductions in the demand for air travel, and competitive disadvantages."

Additionally, our AAdvantage program, which is an important element of our sales and marketing programs, faces significant and increasing competition from the loyalty programs offered by other travel companies, as well as from similar loyalty benefits offered by banks and other financial services companies. Competition among loyalty programs is intense regarding the rewards, fees, required usage, and other terms and conditions of these programs. In addition, we have used certain assets from our AAdvantage program as collateral for the AAdvantage Financing, which contains covenants that impose restrictions on certain amendments or changes to certain of our AAdvantage program agreements provided as collateral under the AAdvantage Financing and other aspects of the AAdvantage program. These competitive factors and covenants (to the extent applicable) may affect our ability to attract and retain customers, increase usage of our loyalty program and maximize the revenue generated by our loyalty program. We may also be impacted by competition regulations affecting certain of our major commercial partners, including our co-branded credit card partners. For example, there has been bipartisan legislation proposed in Congress called the Credit Card Competition Act designed to increase credit card transaction routing options for merchants which, if enacted, could result in a reduction of the fees levied on credit card transactions. If this legislation or any similar legislation or regulation were enacted, it could fundamentally alter the profitability of our agreements with co-branded credit card partners and the benefits we provide to our consumers through the co-branded credit cards issued by these partners.

Any damage to our reputation or brand image could adversely affect our business or financial results. Maintaining a good reputation globally is critical to our business. Our reputation or brand image could be adversely impacted by, among other things, any failure to maintain high ethical, social and environmental sustainability practices for all of our operations and activities, our impact on the environment, public pressure from investors or policy groups to change our policies, such as movements to institute a "living wage," customer perceptions of our advertising campaigns, sponsorship arrangements or marketing programs, customer perceptions of our use of social media, including greenwashing concerns regarding our advertising campaigns and marketing programs related to our sustainability 28 initiatives, or customer perceptions of statements made by us, our employees and executives, agents or other third parties. In addition, we operate in a highly visible industry that has significant exposure to social media. Negative publicity, including as a result of misconduct by our customers, vendors or employees, can spread rapidly through social media. Should we not respond in a timely and appropriate manner to address negative publicity, our brand and reputation may be significantly harmed. Damage to our reputation or brand image or loss of customer confidence in our services could adversely affect our business and financial results, as well as require additional resources to rebuild our reputation. Moreover, an outbreak and spread of an infectious disease could adversely impact consumer perceptions of the health and safety of travel, and in particular airline travel, such as occurred during the COVID-19 pandemic. Actual or perceived risk of infection on our flights could have a material adverse effect on the public's perception of us and may harm our reputation and business. We have in the past, and may in the future be required to take extensive measures to reassure our team members and the traveling public of the safety of air travel, and we could incur significant costs implementing safety, hygiene-related or other actions to limit the actual or perceived threat of infection among our employees and passengers. However, we cannot assure that any actions we might take in response to an infectious disease outbreak will be sufficient to restore the confidence of consumers in the safety of air travel. In addition, as a result of mask mandates and other mitigating measures that airports and carriers were required by law to implement to limit the spread of COVID-19, we experienced an increase in the incidence of aggressive customer behavior and physical confrontation on our flights, certain of which resulted in injuries to our personnel. While the rate of these incidents has declined following the lifting of mask mandates and other COVID-19 measures, if our employees feel unsafe or believe that we are not doing enough to prevent and prosecute such incidents, we could experience higher rates of employee absence or attrition and we may suffer reputational harm which could make it more difficult to attract and retain employees, and which could in turn negatively affect our business, financial condition and results of operations. We are at risk of losses and adverse publicity stemming from any public incident involving our company, our people or our brand, including any accident or other public incident involving our personnel or aircraft, or the personnel or aircraft of our regional, codeshare or joint business operators. We are at risk of adverse publicity stemming from any public incident involving our company, our people or our brand, particularly given the ease with which individuals can now capture and rapidly disseminate information via social media. Such an incident could involve the actual or alleged behavior of any of our employees, contractors or passengers. Further, if our personnel, one of our aircraft, a type of aircraft in our fleet, or personnel of, or an aircraft that is operated under our brand by, one of our regional operators or an airline with which we have a marketing alliance, joint business or codeshare relationship, were to be involved in a public incident, accident, catastrophe or regulatory enforcement action, we could be exposed to significant reputational harm and potential legal liability. The insurance we carry may be inapplicable or inadequate to cover any such incident, accident, catastrophe or action. In the event that our insurance is inapplicable or inadequate, we may be forced to bear substantial losses from an incident or accident. In addition, any such incident, accident, catastrophe or action involving our personnel, one of our aircraft (or personnel and aircraft of our regional operators and our codeshare partners), or a type of aircraft in our fleet could create an adverse public perception, which could harm our reputation, result in air travelers being reluctant to fly on our aircraft or those of our regional operators or codeshare partners, and adversely impact our business, results of operations and financial condition.

AAG's and American's principal executive offices are located at 1 Skyview Drive, Fort Worth, Texas 76155 and their telephone number is 682-278-9000. Airline Operations Together with our wholly-owned regional airline subsidiaries and third-party regional carriers operating as American Eagle, our primary business activity is the operation of a major network air carrier, providing scheduled air transportation for passengers and cargo through our hubs in Charlotte, Chicago, Dallas/Fort Worth, Los Angeles, Miami, New York, Philadelphia, Phoenix and Washington, D.C. and partner gateways, including in London, Doha, Madrid, Seattle/Tacoma, Sydney and Tokyo (among others). In 2023, approximately 211 million passengers boarded our flights. During 2023, we launched more than 50 new routes, providing service to close to 350 destinations around the world, and we announced several new destinations for customers to explore in 2024: Copenhagen, Denmark; Naples, Italy; Nice, France; Governor's Harbour, Bahamas; Tijuana, Mexico; Tulum, Mexico; Ocho Rios, Jamaica; Pasco, Washington and Hyannis, Massachusetts. In 2024, we announced new service to Brisbane, Australia and Veracruz, Mexico, as well as additional nonstop service between New York and Tokyo, Japan. As of December 31, 2023, we operated 965 mainline aircraft supported by our regional airline subsidiaries and third-party regional carriers, which together operated an additional 556 regional aircraft. See Part I, Item 2. Properties for further discussion of our mainline and regional aircraft and "Regional" below for further discussion of our regional operations. American is a founding member of the oneworld® Alliance, which brings together a global network of 13 world-class member airlines and their affiliates, working together to provide a superior and seamless travel experience. See "Distribution and Marketing Agreements" below for further discussion on the oneworld Alliance and other agreements with domestic and international airlines. See Part II, Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations - "2023 Financial Overview," "AAG's Results of Operations" and "American's Results of Operations" for further discussion of AAG's and American's operating results and operating performance. Also, see Note 1(m) to each of AAG's and American's Consolidated Financial Statements in Part II, Items 8A and 8B, respectively, for passenger revenue by geographic region and Note 13 to AAG's Consolidated Financial Statements in Part II, Item 8A and Note 12 to American's Consolidated Financial Statements in Part II, Item 8B for information regarding operating segments.

Customers We fly to close to 350 destinations in the United States and internationally, and we are committed to providing our customers with a world-class travel experience. We continued to rigorously measure and track customer satisfaction through passenger surveys in 2023, efforts that led to further improvements in our operations and the services we provide. In 2023, we achieved our best-ever full year completion factor, with the lowest number of cancellations annually since the 2013 merger with US Airways Group, Inc., which led to a record Likelihood to Recommend score for the full year. Additionally in 2023, we were recognized for the sixth consecutive year with the prestigious Five Star rating in The APEX Official Airline Ratings - Global Airline category. This rating is based on verified customer feedback on the overall travel experience.

Our People The airline business is labor intensive, and our team members are critical to delivering for our customers. The operational complexity of our business requires a diverse team of personnel trained and experienced in a variety of technical areas such as flight operations, ground operations, safety and maintenance, customer service and airline scheduling and planning. Fostering a culture where our team members feel supported to take care of our customers is critical to our success. To do this, we must continue to build a diverse and inclusive environment, helping all team members reach their full potential and providing them with the right resources and support. In 2023, mainline and regional salaries, wages and benefits were our largest expense and represented 34% of our total operating expenses. As of December 31, 2023, we had approximately 132,100 active full-time equivalent employees, approximately 87% of whom were represented by various labor unions responsible for negotiating the collective bargaining agreements (CBAs) governing their compensation and job duties, among other things.

Industry Competition Domestic The markets in which we operate are highly competitive. On most of our domestic nonstop routes, we face competing service from other domestic airlines, including major network airlines, low-cost carriers and ultra-low-cost carriers such as Alaska Airlines, Allegiant Air, Delta Air Lines, Frontier Airlines, Hawaiian Airlines, JetBlue, Southwest Airlines, Spirit Airlines and United Airlines. Between cities that require a connection, where the major airlines compete via their respective hubs, competition is significant. In addition, we face competition on some of our connecting routes from airlines operating point-to-point service on such routes. We also compete with all-cargo and charter airlines and, particularly on shorter segments, ground and rail transportation. In general, beyond nonstop city pairs, carriers that have the greatest ability to seamlessly connect passengers to and from markets have a competitive advantage. In some cases, however, foreign governments limit U.S. air carriers' rights to transport passengers beyond designated gateway cities in foreign countries. In order to improve access to domestic and foreign markets, we have arrangements with other airlines including through the oneworld Alliance, other cooperation agreements, joint business agreements and marketing relationships, as further discussed herein. On all of our routes, pricing decisions are affected, in large part, by the need to meet competition from other airlines. Price competition occurs on a market-by-market basis through price discounts, changes in pricing structures, fare matching, targeted promotions and loyalty program initiatives. Airlines typically use discounted fares and other promotions to stimulate traffic during normally weak travel periods, when they begin service to new cities, when they have excess capacity, to generate cash flow, to maximize revenue per available seat mile or to establish, increase or preserve market share. Most airlines will quickly match price reductions in a particular market, and we have often elected to match discounted or promotional fares initiated by other air carriers in certain markets in order to compete in those markets. In addition, we face pricing pressures from so-called ultra-low-cost carriers, such as Allegiant Air, Frontier Airlines and Spirit Airlines, which compete in many of the markets in which we operate, with competition from these carriers increasing and new entrants regularly announcing their intention to start up new ultra-low-cost carriers. In addition to price competition, airlines compete for market share by increasing the size of their route system and the number of markets they serve. The American Eagle regional carriers increase the number of markets we serve by flying to smaller markets and providing connections at our hubs. Many of our competitors also own or have agreements with regional airlines that provide similar services at their hubs and other locations. We also compete on the basis of scheduling (frequency and flight times), availability of nonstop flights, on-time performance, type of equipment, cabin configuration, amenities provided to passengers, loyalty programs, the automation of travel agent reservation systems, onboard products, health and safety, sustainability initiatives and other services. 11

Labor Relations In 2022, mainline and regional salaries, wages and benefits were our largest expense and represented 32% of our total operating expenses. As of December 31, 2022, we had approximately 129,700 active full-time equivalent employees, approximately 87% of whom were represented by various labor unions responsible for negotiating the collective bargaining agreements (CBAs) governing their compensation and job duties, among other things. Labor relations in the air transportation industry are regulated under the Railway Labor Act (RLA), which vests in the National Mediation Board (NMB) certain functions with respect to disputes between airlines and labor unions relating to union representation and CBAs. 13

Cargo Our cargo division provides a wide range of freight and mail services, with facilities and interline connections available across the globe. In 2022, we served more than 20,000 unique origin and destination pairs, transporting over 890 million pounds of time-sensitive freight and mail across our network. Also in 2022, we were named Best Cargo Airline from the Americas by Air Cargo News.

Distribution and Marketing Agreements Passengers can purchase tickets for travel on American through several distribution channels, including our website (www.aa.com), our mobile app, our reservations centers and third-party distribution channels, including those provided by or through global distribution systems (e.g., Amadeus, Sabre and Travelport), conventional travel agents, travel management companies and online travel agents (e.g., Expedia, including its booking sites Orbitz and Travelocity, and Booking Holdings, including its booking sites Kayak and Priceline). In 2022, American entered into new long-term distribution agreements with Amadeus, Sabre and Travelport which will allow us to continue to provide convenient ways for customers to purchase travel from American. To remain competitive, we will need to manage our distribution costs and rights effectively, increase our distribution flexibility and improve the functionality of our proprietary and third-party distribution channels, while maintaining an industry-competitive cost structure. For more discussion, see Part I, Item 1A. Risk Factors - "We rely on third-party distribution channels and must manage effectively the costs, rights and functionality of these channels." In general, beyond nonstop city pairs, carriers that have the greatest ability to seamlessly connect passengers to and from markets have a competitive advantage. In some cases, however, foreign governments limit U.S. air carriers' rights to transport passengers beyond designated gateway cities in foreign countries. In order to improve access to domestic and foreign markets, we have arrangements with other airlines including through the oneworld Alliance, other cooperation agreements, joint business agreements and marketing relationships, as further discussed below.

International In addition to our extensive domestic service, we provide international service to Canada, Mexico, the Caribbean, Central and South America, Europe, Qatar, China, Japan, Korea, India, Australia and New Zealand. In providing international air transportation, we compete with other U.S. airlines, foreign investor-owned airlines and foreign state-owned or state-affiliated airlines. Competition has also been increasing from low-cost airlines executing international long-haul expansion strategies, a trend we expect to continue, in particular with the planned introduction of long-range narrowbody aircraft in the coming years. In order to increase our ability to compete in the market for international air transportation service, which is subject to extensive government regulation, U.S. and foreign carriers have entered into bilateral and multilateral marketing relationships, alliances, cooperation agreements and joint business agreements to exchange traffic among each other's flights and route networks. See "Distribution and Marketing Agreements" above for further discussion.

Climate We recognize the challenge of climate change and have set ambitious goals to transition to operating a low-carbon airline over time. Our aim is to achieve net zero GHG emissions by 2050, and we have set an intermediate target to drive progress toward that goal. We have received validation from the Science Based Targets initiative (SBTi) that our 2035 GHG reduction target complies with the criteria in the SBTi's first aviation pathway. The vast majority of our direct GHG emissions comes from the use of jet fuel in our operations. Our current strategy for reaching net zero GHG emissions by 2050 is focused on running a more fuel-efficient operation, with more fuel-efficient aircraft, powered by low-carbon fuel. To do so, we are working to drive progress across several key levers, including: •Continuing to replace older, less fuel-efficient aircraft with new, more efficient aircraft over time; •Helping scale the production of sustainable aviation fuel (SAF) with the aim of transitioning to lower-carbon fuels. Currently, SAF is not available at the cost or scale necessary to meet our industry's needs. We continue to enter into agreements to purchase SAF as part of our goal to replace 10% of our conventional jet fuel with SAF in 2030 and to encourage investment in SAF; and •Evaluating and investing in innovations that may enable commercial aircraft to be powered by low- and no-carbon fuel sources over the long term. For example, we have made direct investments in companies working to develop hydrogen-electric propulsion technology and green hydrogen distribution. We are also an anchor partner of Breakthrough Energy Catalyst, which aims to make investments to accelerate the development of new clean energy technologies, including SAF. Achieving our ambitious goals will require significant action and investments by governments, manufacturers and other stakeholders. We are committed to engaging with our stakeholders to seek to advance these initiatives, and we have dedicated resources to advance our own progress. Our Board and Corporate Governance and Public Responsibility Committee receive updates on our climate strategy, progress and key risks regularly. Our Chief Executive Officer is responsible for oversight of our climate change strategy. 12

Safety The safety of our customers and team members is a top priority. Our approach to safety is guided by our FAA-approved safety management systems (SMS), an organization-wide approach to identifying and managing risk. Each SMS is comprised of four components: Safety Policy, Safety Assurance, Safety Risk Management and Safety Promotion. Our Safety Policy sets safety objectives while striving to comply with applicable regulatory requirements and laws in the countries where we operate and establishing standards for acceptable operational behaviors. The Safety Assurance component of our SMS specifies how we use data and conduct quality assurance and internal oversight to validate the effectiveness of risk controls and the performance of the SMS. The Safety Risk Management (SRM) element of our SMS provides a decision-making process for identifying hazards and mitigating risk based on a thorough understanding of our systems and their operating environment. We employ SRM whenever there is a significant change to our operations, such as the delivery of new aircraft. Lastly, the Safety Promotion component includes training and raising awareness among team members so that they can spot potential safety events.

Competitive Pay and Comprehensive Benefits We seek to offer competitive pay, comprehensive benefits and a wide variety of resources designed to support the physical, behavioral and financial well-being of our team members and their families, including medical coverage that is intended to be affordable and flexible along with healthcare navigation and support tools. Our internal recognition programs give team members and customers the opportunity to show their appreciation for a job well done, including through our Nonstop Thanks program whereby team members can award each other points for exceptional service or as an expression of gratitude. Recognition points earned through the recognition program can be redeemed for items in an online catalog. In 2023, our team members were recognized by customers, peers and company leaders approximately three million times and more than 1,600 peer nominations were submitted for the annual Circle of Excellence, the highest honor that we bestow upon our team members for their career achievements. Our future success depends in large part on our ability to attract, develop and retain highly qualified management, technical and other personnel. Retaining and recruiting people with the appropriate skills became particularly challenging as the economy in general, and the airline industry in particular, recovered from the COVID-19 pandemic, and there remains intense competition for the human resources necessary to operate our business successfully. Like many other airlines, we have experienced and continue to experience periodic shortages of frontline team members as a result. For more discussion, see Part I, Item 1A. Risk Factors - "The loss of key personnel upon whom we depend to operate our business or the inability to attract, develop and retain additional qualified personnel could adversely affect our business."

Regional Our regional carriers provide scheduled air transportation under the brand name "American Eagle." The American Eagle carriers include our wholly-owned regional carriers Envoy Air Inc. (Envoy), PSA and Piedmont, as well as third-party regional carriers including Republic Airways Inc. (Republic), SkyWest Airlines, Inc. (SkyWest) and Air Wisconsin Airlines LLC (Air Wisconsin). Our regional carriers are an integral component of our operating network. We rely heavily on regional carriers to serve small markets and also to drive connecting traffic to our hubs from markets that are not economical for us to serve with larger, mainline aircraft. In addition, regional carriers offer complementary service in many of our mainline markets. All American Eagle carriers use logos, service marks, aircraft paint schemes and uniforms similar to those of our mainline operations. In 2023, 46 million passengers boarded our regional flights, approximately 45% of whom connected to or from our mainline flights. Our regional carrier arrangements are in the form of capacity purchase agreements with our third-party regional partners and similar arrangements with our wholly-owned affiliates which provide that all revenues, including passenger, in-flight, ancillary, mail and freight revenues, go to us. We control marketing, scheduling, ticketing, pricing and seat inventories. In return, we agree to pay predetermined fees to these airlines for operating an agreed-upon number of aircraft, without regard to the number of passengers on board. In addition, these agreements provide that we either reimburse or pay 100% of certain variable costs, such as airport landing fees, fuel and passenger liability insurance. In 2023, Air Wisconsin began operating scheduled flights under the American Eagle name.

Mainline: Allied Pilots Association (APA)Pilots14,500 2027 Association of Professional Flight Attendants (APFA)Flight Attendants24,950 2019 Airline Customer Service Employee Association - Communications Workers of America and International Brotherhood of Teamsters (CWA-IBT)

Passenger Service14,650 2029 Transport Workers Union and International Association of Machinists & Aerospace Workers (TWU-IAM Association) Mechanics and Related12,350 2025

TWU-IAM AssociationFleet Service19,100 2025 TWU-IAM AssociationStock Clerks2,000 2025 TWU-IAM AssociationFlight Simulator Engineers150 2025 TWU-IAM AssociationMaintenance Control Technicians190 2025

TWU-IAM AssociationMaintenance Training Instructors100 2025 Professional Airline Flight Control Association (PAFCA)Dispatchers570 2025 Transport Workers Union (TWU)Flight Crew Training Instructors390 2025 14

Seasonality and Other Factors Due to the greater demand for air travel during the summer months, revenues in the airline industry exhibit seasonal patterns based on the peak travel periods. General economic conditions, fears of terrorism or war, fare initiatives, fluctuations in fuel prices, labor actions, weather, natural disasters, outbreaks of disease, geopolitical factors and other factors could impact this seasonal pattern. Therefore, our quarterly results of operations are not necessarily indicative of operating results for the entire year, and historical operating results in a quarterly or annual period are not necessarily indicative of future operating results.

The U.S. Postal Service has jurisdiction over certain aspects of the transportation of mail and related services. Airport Access and Operations Domestically, any U.S. airline authorized by the DOT is generally free to operate scheduled passenger service between any two points within the U.S. and its territories, with the exception of certain airports that require landing and take-off rights and authorizations (slots) and other facilities, and certain airports that impose geographic limitations on operations or curtail operations based on the time of day. Operations at three major domestic airports we serve (JFK and LGA in New York City, and Ronald Reagan Washington National Airport (DCA) near Washington, D.C.) and many foreign airports we serve (including LHR) are regulated by governmental entities through allocations of slots or similar regulatory mechanisms 16 that limit the rights of carriers to conduct operations at those airports. Each slot represents the authorization to land at and take off from the particular airport during a specified time period. In addition to slot restrictions, operations at DCA and LGA are also limited based on a so-called "perimeter rule" which generally limits the stage length of the flights that can be operated from those airports to 1,250 and 1,500 miles, respectively. Generally, our ability to retain slots is conditioned on the continued use of such slots, and in the absence of use, the slots are subject to forfeiture. In certain circumstances, such as during the COVID-19 pandemic, regulators may issue slot waivers which temporarily suspend or amend slot usage requirements, and we have used slot waivers at times to reduce flying levels during periods of reduced demand for travel. Moreover, on multiple occasions in 2023, the FAA issued slot waivers for New York City area airports as a result of operational challenges arising from air traffic control staffing shortages; those waivers expire in October 2024, and we cannot guarantee that such waivers will be made available to us, or that upon expiration or cancellation of such waivers it will be economical for us to resume prior levels of flying to destinations where we have operated a reduced service. If we are forced to surrender slots or other rights, we may be unable to provide our desired level of service to or from certain destinations in the future. For more discussion, see Part I, Item 1A. Risk Factors - "If we are unable to obtain and maintain adequate facilities and infrastructure throughout our system and, at some airports, adequate slots, we may be unable to operate our existing flight schedule and to expand or change our route network in the future, which may have a material adverse impact on our operations." Our ability to provide service can also be impaired at airports where the airport gates and other facilities are currently inadequate to accommodate all of the service that we would like to provide, or where we have no access to gates at all. Existing law also permits domestic local airport authorities to implement procedures and impose restrictions designed to abate noise, provided such procedures and restrictions do not unreasonably interfere with interstate or foreign commerce or the national transportation system. In some instances, these restrictions have caused curtailments in service or increases in operating costs.

DOT Passenger Protection Rules The DOT regulates airline interactions with passengers through the ticketing process, at the airport and onboard the aircraft. Among other things, these regulations govern how our fares are displayed online, required customer disclosures, access by disabled passengers, handling of long onboard flight delays and reporting of mishandled bags. In 2023, the DOT finalized rules for accessible lavatories on single-aisle aircraft and has continued to work through proposals for a number of disability regulations that will impact us, including penalties for wheelchair loss or damage and prompt wheelchair assistance. The DOT has also proposed rules requiring refunds for cancellations and significant delays and rules mandating the display of ancillary fees during the initial itinerary search.

Environmental Matters Environmental Regulation The airline industry is subject to various laws and government regulations concerning environmental matters in the U.S. and other countries. U.S. federal laws that have a particular impact on our operations include the Airport Noise and Capacity Act of 1990, the Clean Air Act, the Resource Conservation and Recovery Act, the Clean Water Act, the Safe Drinking Water Act and the Comprehensive Environmental Response, Compensation and Liability Act. The U.S. Environmental Protection Agency (EPA) and other federal agencies may promulgate regulations that have an impact on our operations. In addition to these federal activities, various states have been delegated certain authorities under the aforementioned federal statutes. Many state and local governments have adopted environmental laws and regulations that are similar to or stricter than federal requirements. Revised underground storage tank regulations issued by the EPA in 2015 have affected certain airport fuel hydrant systems, with modifications of such systems needed in order to comply with applicable portions of the revised regulations. In addition, related to the EPA and state regulations pertaining to storm water management, several U.S. airport authorities are actively engaged in efforts to limit discharges of deicing fluid into the environment, often by requiring airlines to participate in the building or reconfiguring of airport deicing facilities. Additionally, compliance with updated federal and state regulations governing fire extinguishing foams are expected to require modification to fire suppression systems that we operate, as well as those maintained by airports. On November 23, 2022, the EPA also published the final rule for particulate matter emission standards and test procedures for civil aircraft engines, which took effect on December 23, 2022. These or similar regulations could directly or indirectly result in increased compliance costs, but at this time we do not expect these costs to be material. The environmental laws include those related to responsibility for potential soil and groundwater contamination. We are conducting investigation and remediation activities to address soil and groundwater conditions at several sites, including airports and maintenance bases. We presently anticipate that the ongoing costs of such activities will not have a material impact on our operations. We employ an environmental management system that provides a systematic approach for compliance with environmental regulations and management of a broad range of environmental issues, including but not limited to air emissions, hazardous waste, underground tanks, and aircraft water quality.

Available Information Use of Websites to Disclose Information Our website is located at www.aa.com. We have made, and expect in the future to make, public disclosures to investors and the general public of information regarding AAG and its subsidiaries by means of the investor relations section of our website as well as through the use of our social media sites, including Facebook and X. In order to receive notifications regarding new postings to our website, investors are encouraged to enroll on our website to receive automatic email alerts (see https://americanairlines.gcs-web.com/email-alerts), "follow" American (@AmericanAir) on X and "like" American on our Facebook page (www.facebook.com/AmericanAirlines). None of the information or contents of our website or social media postings is incorporated into this Annual Report on Form 10-K.

Availability of SEC Reports A copy of this Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to those reports are available free of charge on our website as soon as reasonably practicable after we electronically file such material with, or furnish it to, the SEC. The SEC also maintains a website that contains reports, proxy and information statements, and other information regarding issuers that file electronically with the SEC at www.sec.gov.

Member of oneworld Alliance American is a founding member of the oneworld Alliance, which currently includes Alaska Airlines, British Airways, Cathay Pacific, Finnair, Iberia, Japan Airlines, Malaysia Airlines, Qantas Airways (Qantas), Qatar Airways, Royal Air Maroc, Royal Jordanian Airlines and SriLankan Airlines. Oman Air is expected to join the oneworld Alliance in 2024, and Fiji Airways is a oneworld connect partner offering select alliance benefits to oneworld frequent flyers. The oneworld Alliance links the networks of member carriers and their respective affiliates to enhance customer service and provide smooth connections to the destinations served by the alliance, including linking member carriers' loyalty programs and providing reciprocal access to the carriers' airport lounge facilities.

Joint Business Agreements and Other Cooperation Agreements American has established a transatlantic joint business with British Airways, Aer Lingus, Iberia and Finnair, a transpacific joint business with Japan Airlines and a joint business covering Australia and New Zealand with Qantas. Joint business agreements enable the carriers involved to cooperate on flights between particular destinations and allow pooling and sharing of certain revenues and costs, enhanced loyalty program reciprocity and cooperation in other areas. Joint business agreements have become a common approach among major carriers to address key regulatory restrictions typically applicable to international airline service, including limitations on the foreign ownership of airlines and national laws prohibiting foreign airlines from carrying passengers beyond specific gateway cities. We also have established a strategic alliance with Alaska Airlines covering certain routes on the West Coast of the United States and a strategic alliance with Qatar Airways covering the Middle East in order to provide customers with improved schedules and network connection opportunities, enhanced loyalty program reciprocity and cooperation in other areas. In July 2010, in connection with a regulatory review related to our transatlantic joint business, we provided certain commitments to the European Commission (EC) regarding, among other things, the availability of take-off and landing slots at London Heathrow (LHR) or London Gatwick (LGW) airports. The commitments accepted by the EC were binding for 10 years. In anticipation of both the exit of the United Kingdom from the European Union (EU), commonly referred to as Brexit, and the expiry of the EC commitments in July 2020, the United Kingdom Competition and Markets Authority (CMA), in October 2018, opened an investigation into the transatlantic joint business. In September 2020 and April 2022, the CMA adopted interim measures that effectively extend the EC commitments until March 2026 in light of the uncertainty and other impacts resulting from the COVID-19 pandemic. The CMA restarted its investigation in September 2023 after a pause related to the COVID-19 pandemic and plans to complete the investigation before the scheduled expiration of the interim measures in March 2026. We continue to cooperate fully with the CMA.

AAdvantage® Program Our AAdvantage program was established to develop passenger loyalty by offering benefits and rewards to travelers for their continued patronage with American and our partners. AAdvantage members enjoy exclusive benefits and earn mileage credits for flying on eligible tickets on American, any oneworld Alliance airline or other partner airlines. For every dollar spent by flying on an eligible American ticket, members earn mileage credits, and AAdvantage Gold®, AAdvantage Platinum®, AAdvantage Platinum Pro® and AAdvantage Executive Platinum® status holders earn additional bonus mileage credits of 40%, 60%, 80% and 120%, respectively. Members also earn mileage credits by using the services of more than 1,000 non-flight partners, such as our co-branded credit cards, certain hotel and car rental companies and shopping and dining partners. The AAdvantage program in general, and our co-branded credit card programs in particular, are material assets of our business and have become increasingly important to our company over time. During 2023 and 2022, cash payments from co-branded credit card and other partners were $5.2 billion and $4.5 billion, respectively. Mileage credits can be redeemed for travel and upgraded experiences on American and participating airlines, membership to our Admirals Club®, or for other non-flight awards, such as car rentals and hotels, from our program partners. Travel awards are available on all flights operated by American and, subject to capacity-controlled seating, on flights operated by our partners. A member's mileage credits generally do not expire if that member has any type of qualifying activity at least once every 24 months or if the AAdvantage member is the primary holder of a co-branded credit card. AAdvantage members qualify for status over a 12-month period beginning on March 1 of each year by earning 10 Loyalty Points, which can be earned through a variety of qualifying travel and non-travel activities, including use of our co-branded credit cards. Status members can enjoy additional travel benefits of the AAdvantage program, including complimentary upgrades, checked bags, and Preferred and Main Cabin Extra seats, as well as priority check-in, security, boarding and baggage delivery when traveling on American, any oneworld Alliance airline or select partner airlines. In addition, AAdvantage members can unlock benefits, rewards and choices before, between and beyond the traditional status tiers with Loyalty Point Rewards. In 2023, we introduced a new business loyalty program, AAdvantage Business, which rewards both eligible companies with AAdvantage miles and their travelers with additional Loyalty Points for booking business travel through our website or mobile app. In 2023, the editorial staff of the digital news outlet, The Points Guy, selected AAdvantage as the Best U.S. Airline Loyalty Program. In addition, AAdvantage was recognized for the Best Elite Program in the Americas at the 2023 Freddie Awards, which is based entirely on votes from travelers around the world. Under our agreements with AAdvantage members and program partners, we reserve the right to change the terms of the AAdvantage program at any time and without notice. Program rules, partners, special offers, awards and requisite mileage levels for awards are subject to change. During 2023, our members redeemed approximately 13 million awards, including travel redemptions for flights and upgrades on American and other air carriers, as well as redemption of car and hotel awards, club memberships and merchandise. Approximately 8% of our 2023 total revenue passenger miles flown were from award travel. See Part II, Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations - "Critical Accounting Policies and Estimates" for more information on our loyalty program.