Flights from Seattle to San Antonio from $ 255*

Promotion Code

Featured daily fares for flights from Seattle (SEA) to San Antonio (SAT)

$ 286
$ 560
Displaying fares for April-2026
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  • Range$ 286-$ 560

    More United deals on Seattle (SEA) to San Antonio (SAT) flights

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    More United deals on Seattle (SEA) to San Antonio (SAT) flights
    From
    To
    Fare Type
    Dates
    Price
    Seattle (SEA)San Antonio (SAT)Roundtrip
    |
    Economy
    07/13/26 - 07/20/26

    from

    $ 255

    Viewed: 12 hours ago

    Seattle (SEA)San Antonio (SAT)Roundtrip
    |
    Economy
    07/10/26 - 07/13/26

    from

    $ 255

    Viewed: 12 hours ago

    Seattle (SEA)San Antonio (SAT)Roundtrip
    |
    Economy
    06/05/26 - 06/09/26

    from

    $ 263

    Viewed: 12 hours ago

    Seattle (SEA)San Antonio (SAT)Roundtrip
    |
    Economy
    06/09/26 - 06/16/26

    from

    $ 273

    Viewed: 12 hours ago

    Seattle (SEA)San Antonio (SAT)Roundtrip
    |
    Economy
    07/09/26 - 07/13/26

    from

    $ 280

    Viewed: 12 hours ago

    Seattle (SEA)San Antonio (SAT)Roundtrip
    |
    Economy
    07/16/26 - 07/20/26

    from

    $ 280

    Viewed: 12 hours ago

    Seattle (SEA)San Antonio (SAT)Roundtrip
    |
    Economy
    07/04/26 - 07/07/26

    from

    $ 280

    Viewed: 12 hours ago

    Seattle (SEA)San Antonio (SAT)Roundtrip
    |
    Economy
    06/08/26 - 06/15/26

    from

    $ 282

    Viewed: 12 hours ago

    *Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.