144 0000938673 XXXXXXXX LIVE 0001362468 Allegiant Travel CO 001-33166 1201 N. TOWN CENTER DRIVE LAS VEGAS NV 89144 702-851-7300 GALLAGHER MAURICE J JR Director Common Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

28319 2391682.12 18343946 11/25/2024 NASDAQ Common 02/25/2016 Restricted Stock Vesting Issuer N 320 02/25/2016 Compensation Common 03/06/2016 Restricted Stock Vesting Issuer N 445 03/06/2016 Compensation Common 03/08/2016 Restricted Stock Vesting Issuer N 603 03/08/2016 Compensation Common 02/17/2017 Restricted Stock Vesting Issuer N 898 02/17/2017 Compensation Common 02/25/2017 Restricted Stock Vesting Issuer N 320 02/25/2017 Compensation Common 03/06/2017 Restricted Stock Vesting Issuer N 446 03/06/2017 Compensation Common 02/17/2018 Restricted Stock Vesting Issuer N 779 02/17/2018 Compensation Common 02/21/2018 Restricted Stock Vesting Issuer N 813 02/21/2018 Compensation Common 02/25/2018 Restricted Stock Vesting Issuer N 334 02/25/2018 Compensation Common 02/08/2019 Restricted Stock Vesting Issuer N 1234 02/08/2019 Compensation Common 02/17/2019 Restricted Stock Vesting Issuer N 780 02/17/2019 Compensation Common 02/21/2019 Restricted Stock Vesting Issuer N 814 02/21/2019 Compensation Common 02/08/2020 Restricted Stock Vesting Issuer N 1027 02/08/2020 Compensation Common 02/14/2020 Restricted Stock Vesting Issuer N 2893 02/14/2020 Compensation Common 02/21/2020 Restricted Stock Vesting Issuer N 814 02/21/2020 Compensation Common 10/21/2020 Restricted Stock Vesting Issuer N 11237 10/21/2020 Compensation Common 01/29/2021 Restricted Stock Vesting Issuer N 3200 01/29/2021 Compensation Common 01/29/2022 Restricted Stock Vesting Issuer N 1923 01/29/2022 Compensation Y 11/25/2024 /s/ Eric Janiak, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Maurice Gallagher