Alaska Airlines Flights from San Diego to Seattle

Lowest fares from San Diego to Seattle

Jun 2026
From$194*
Seen: 18 hours ago
Flight Type One Way|Saver
Jul 2026
From$164*
Seen: 18 hours ago
Flight Type One Way|Saver
Aug 2026
From$129*
Seen: 18 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $164
cmp-daily-histogram-bars-legend-max-price-aria-label $384
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    • Range$164-$384

    *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.

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

    $
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    One-way low-fare flights San Diego to Seattle.*
    From
    To
    Fare Type
    Dates
    Price
    San Diego (SAN)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 17, 2026

    From

    $129

    Seen: 18 hours ago

    San Diego (SAN)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 20, 2026

    From

    $129

    Seen: 18 hours ago

    San Diego (SAN)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 21, 2026

    From

    $129

    Seen: 18 hours ago

    San Diego (SAN)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 27, 2026

    From

    $129

    Seen: 18 hours ago

    San Diego (SAN)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 28, 2026

    From

    $129

    Seen: 18 hours ago

    San Diego (SAN)Seattle (SEA)One-way
    |
    Saver    		Depart: Nov 7, 2026

    From

    $129

    Seen: 18 hours ago

    San Diego (SAN)Seattle (SEA)One-way
    |
    Saver    		Depart: Nov 11, 2026

    From

    $129

    Seen: 18 hours ago

    San Diego (SAN)Seattle (SEA)One-way
    |
    Saver    		Depart: Nov 14, 2026

    From

    $129

    Seen: 18 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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