Expedia Group, Inc. $1,000,000,000 5.500% Senior Notes Due 2036 We are offering $1,000,000,000 aggregate principal amount of our 5.500% Senior Notes due 2036 (the “notes”). The noteswill bear interest at a rate of 5.500%. We will pay interest on the notes semi-annually in arrears on April 15 and October 15 ofeach year, beginning on October 15, 2026. The notes will mature on April 15, 2036. At our option, we may redeem all or part of the notes at any time or from time to time prior to their maturity at theapplicable redemption price described under “Description of Notes — Optional Redemption.” If we experience specific kinds ofchange of control events, we must offer to purchase the notes. The notes will be our senior unsecured, unsubordinated obligations and will rank equally in right of payment with all of ourexisting and future unsecured and unsubordinated obligations, including (i)our existing 4.625% senior notes due 2027, 3.800%senior notes due 2028, 3.25% senior notes due 2030, 2.950% senior notes due 2031, and 5.400% senior notes due 2035(collectively, the “Existing Notes”) and (ii)our Credit Agreement, dated as of March27, 2026 (the “Revolving Credit Facility”). The notes will not be guaranteed by any of our subsidiaries. The notes will be effectively subordinated to all of our existingand future secured indebtedness, up to the value of the collateral securing such indebtedness, and to all of the existing and futureindebtedness and other liabilities of our subsidiaries. Investing in the notes involves risks. See the risks that are described in the “Risk Factors” section beginning on pageS-4of thisprospectus supplement and any risk factors described in the documents we incorporate by reference. Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of thesesecurities or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense. Per NoteTotalPublic offering price99.384$993,840,000Underwriting discount0.450$4,500,000Proceeds, before expenses, to us98.934$989,340,000(1)%%(1)% The underwriters expect to deliver the notes on or about April 10, 2026 only in book-entry formthrough the facilities ofThe Depository Trust Company and its participants, including Euroclear Bank S.A./N.V. and Clearstream Banking, sociétéanonyme, against payment therefor in immediately available funds. Joint Book-Running Managers BofA SecuritiesBNP PARIBASHSBCTD Securities CitigroupJ.P. MorganScotiabankWells Fargo Securities The date of this prospectus supplement is April 8, 2026. You should rely only on the information contained or incorporated by reference in this prospectussupplement, in the accompanying prospectus and any free writing prospectus with respect to the offering filedwith the Securities and Exchange Commission (the “SEC”). Neither we nor the underwriters have authorizedanyone to provide you with additional or different information. If anyone provides you with additional, differentor inconsistent information, you should not rely on it. We are not, and the underwriters are not, making an offerof these securities in any state or other jurisdiction where the offer is not permitted. You should assume that theinformation in this prospectus supplement, in the accompanying prospectus and in any free writing prospectuswith respect to the offering filed with the SEC and the documents incorporated by reference is accurate only asof their respective dates regardless of its time of delivery or the time of any sales of the notes. Our business,financial condition, results of operations or cash flows may have changed since the date of this prospectussupplement. TABLE OF CONTENTS Prospectus Supplement PageABOUT THIS PROSPECTUS SUPPLEMENTS-iiWHERE YOU CAN FIND MORE INFORMATIONS-iiiINFORMATION INCORPORATED BY REFERENCES-iiiINDUSTRY AND MARKET DATAS-ivCAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTSS-vSUMMARYS-1RISK FACTORSS-4USE OF PROCEEDSS-8CAPITALIZATIONS-9DESCRIPTION OF NOTESS-10CERTAIN U.S. FEDERAL INCOME TAX CONSEQUENCESS-28UNDERWRITINGS-33LEGAL MATTERSS-38EXPERTSS-38 Prospectus ABOUT THIS PROSPECTUS1FORWARD-LOOKING STATEMENTS2PROSPECTUS SUMMARY3INFORMATION INCORPORATED BY REFERENCE4WHERE YOU CAN FIND MORE INFORMATION5RISK FACTORS6SUBSIDIARY GUARANTORS7USE OF PROCEEDS8DESCRIPTION OF DEBT SECURITIES9PLAN OF DISTRIBUTION11LEGAL MATTERS13EXPERTS14 ABOUT THIS PROSPECTUS SUPPLEMENT This document is in two parts. The first part is the prospectus supplement, which describes the specificterms of the notes we are offering and certain other matters relating to us and our financial condition. Thesecond part, the accompanying prospectus, gives more general information about debt securities that wemay offer from time to time, some of which may not apply to the notes we are offering. You should read thisprospectus supplement along with the accompanying prospectus, as well as the documents incorporated by