Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. American Airlines Group Inc. Yes ☐ No ☒ American Airlines, Inc. Yes ☐ No ☒ Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. American Airlines Group Inc. Yes ☒ No ☐ American Airlines, Inc. Yes ☒ No ☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). American Airlines Group Inc. Yes ☒ No ☐ American Airlines, Inc. Yes ☒ No ☐ Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§ 229.405) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. American Airlines Group Inc. ☒ American Airlines, Inc. ☒ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. American Airlines Group Inc. ☒  Large Accelerated Filer ☐  Accelerated Filer ☐  Non-accelerated Filer ☐  Smaller Reporting Company ☐  Emerging Growth Company American Airlines, Inc. ☐  Large Accelerated Filer ☐  Accelerated Filer ☒  Non-accelerated Filer ☐  Smaller Reporting Company ☐  Emerging Growth Company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. American Airlines Group Inc. ☐ American Airlines, Inc. ☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). American Airlines Group Inc. Yes ☐ No ☒ American Airlines, Inc. Yes ☐ No ☒ Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Section 12, 13, or 15(d) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court. American Airlines Group Inc. Yes ☒ No ☐ American Airlines, Inc. Yes ☒ No ☐ As of February 20, 2019, there were 449,055,548 shares of American Airlines Group Inc. common stock outstanding. The aggregate market value of the voting stock held by non-affiliates of the registrant as of June 30, 2018, was approximately $17 billion. As of February 20, 2019, there were 1,000 shares of American Airlines, Inc. common stock outstanding, all of which were held by American Airlines Group Inc. American Airlines Group Inc. and American Airlines, Inc. meet the conditions set forth in General Instruction I(1)(a) and (b) of Form 10-K and have therefore omitted the information otherwise called for by Items 10-13 of Form 10-K as allowed under General Instruction I(2)(c). Portions of the proxy statement related to American Airlines Group Inc.’s 2019 Annual Meeting of Stockholders, which proxy statement will be filed under the Securities Exchange Act of 1934 within 120 days of the end of American Airlines Group Inc.’s fiscal year ended December 31, 2018, are incorporated by reference into Part III of this Annual Report on Form 10-K. OMISSION OF CERTAIN INFORMATION DOCUMENTS INCORPORATED BY REFERENCE