Alaska Airlines Flights from San Antonio to Seattle

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Lowest fares from San Antonio to Seattle

$159
$419
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  • Range$159-$419

    One-way low-fare flights San Antonio to Seattle.*

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    One-way low-fare flights San Antonio to Seattle.*
    From
    To
    Fare Type
    Dates
    Price
    San Antonio (SAT)Seattle (SEA)One-way
    |
    Saver
    Depart: Aug 14, 2025

    From

    $139

    Seen: 22 hours ago

    San Antonio (SAT)Seattle (SEA)One-way
    |
    Saver
    Depart: Sep 7, 2025

    From

    $139

    Seen: 22 hours ago

    San Antonio (SAT)Seattle (SEA)One-way
    |
    Saver
    Depart: Sep 11, 2025

    From

    $139

    Seen: 22 hours ago

    San Antonio (SAT)Seattle (SEA)One-way
    |
    Saver
    Depart: Sep 16, 2025

    From

    $139

    Seen: 22 hours ago

    San Antonio (SAT)Seattle (SEA)One-way
    |
    Saver
    Depart: Sep 26, 2025

    From

    $139

    Seen: 22 hours ago

    San Antonio (SAT)Seattle (SEA)One-way
    |
    Saver
    Depart: Oct 1, 2025

    From

    $139

    Seen: 22 hours ago

    San Antonio (SAT)Seattle (SEA)One-way
    |
    Saver
    Depart: Oct 9, 2025

    From

    $139

    Seen: 22 hours ago

    San Antonio (SAT)Seattle (SEA)One-way
    |
    Saver
    Depart: Oct 17, 2025

    From

    $139

    Seen: 22 hours ago

    *Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

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