United Airlines Holdings, Inc.

Item 1.01 Entry into a Material Definitive Agreement. On February 2, 2026, United Airlines Holdings, Inc. (formerly known as United Continental Holdings, Inc., “UAL”) issued in a public offering $1,000,000,000 principal amount of its 5.375% Senior Notes due 2031 (the “Notes”), which are guaranteed (the “Guarantee”) by UAL’s wholly-owned subsidiary United Airlines, Inc. (“United”). The Notes and Guarantee were issued pursuant to an Indenture, dated as of May 7, 2013 (the “Base Indenture”), among UAL, United and The Bank of New York Mellon Trust Company, N.A., as trustee (the “Trustee”), as modified and supplemented for purposes of establishing the terms of the Notes by the Sixth Supplemental Indenture, dated as of February 2, 2026 (the “Sixth Supplemental Indenture” and, together with the Base Indenture, the “Indenture”), among UAL, United and the Trustee. The Notes will mature on March 1, 2031. The Notes bear interest at a rate of 5.375% per annum, payable semi-annually on March 1 and September 1 of each year, beginning September 1, 2026. The Indenture contains certain covenants that, among other things, limit our ability to incur liens securing indebtedness for borrowed money or capital leases and engage in mergers and consolidations or transfer all or substantially all of our assets, in each case subject to a number of important exceptions as specified in the Indenture. The indebtedness evidenced by the Notes may be accelerated upon the occurrence of events of default under the Indenture, which are customary for securities of this nature. UAL, at its option, may redeem the Notes at any time prior to September 1, 2030 (six months prior to maturity), in whole or in part, at a redemption price equal to the greater of (1) 100% of the principal amount of the Notes to be redeemed and (2) a make-whole amount, if any, plus accrued and unpaid interest on the principal amount being redeemed to the redemption date. At any time on or after September 1, 2030 (six months prior to maturity), UAL may redeem the Notes, in whole or in part, at a redemption price equal to 100% of the principal amount of the Notes to be redeemed, plus accrued and unpaid interest on the principal amount being redeemed to the redemption date. Upon the occurrence of a Change of Control Triggering Event (as defined in the Sixth Supplemental Indenture) with respect to the Notes, unless a third party makes a Change of Control Offer (as defined in the Sixth Supplemental Indenture) or UAL has exercised its right to redeem the Notes, each holder of Notes will have the right to require UAL to repurchase all or a portion of such holder’s Notes at a price equal to 101% of the principal amount thereof, plus accrued and unpaid interest, if any, to the repurchase date. The Sixth Supplemental Indenture is filed herewith as Exhibit 4.2, and is incorporated by reference herein. The form of the Notes and the form of the Notation of Note Guarantee are filed herewith as Exhibits 4.3 and 4.4, respectively, and are incorporated by reference herein. The foregoing descriptions of the Sixth Supplemental Indenture, the Notes and the Guarantee are qualified in their entirety by reference to such exhibits. The issuance of the Notes and the Guarantee were registered pursuant to UAL’s and United’s automatic shelf registration statement on Form S-3 (Registration Nos. 333-275664 and 333-275664-1) (the “Registration Statement”), filed with the Securities and Exchange Commission (the “SEC”) on November 20, 2023. The material terms of the Notes and the Guarantee are more fully described in the final Prospectus Supplement, dated January 26, 2026, to the Prospectus, dated November 20, 2023, of UAL and United filed with the SEC on January 28, 2026 pursuant to Rule 424(b) under the Securities Act of 1933, as amended, which description is hereby incorporated herein by reference.

Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information described under Item 1.01 above is hereby incorporated by reference in this Item 2.03.

Item 8.01 Other Events. In connection with the offering of the Notes, we are filing herewith the opinion of Hughes Hubbard & Reed LLP for the purpose of adding the opinion that the Notes and the Guarantee are binding obligations as an exhibit with respect to the Registration Statement.