Alaska Airlines Flights from Seattle to San Diego

Lowest fares from Seattle to San Diego

Jun 2026
From$123*
Seen: 7 hours ago
Flight Type One Way|Saver
Jul 2026
From$83*
Seen: 1 hour ago
Flight Type One Way|Saver
Aug 2026
From$139*
Seen: 16 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $123
cmp-daily-histogram-bars-legend-max-price-aria-label $452
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    • Range$123-$452

    *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 Seattle to San Diego.*

    $
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    One-way low-fare flights Seattle to San Diego.*
    From
    To
    Fare Type
    Dates
    Price
    Seattle (SEA)San Diego (SAN)One-way
    |
    Saver    		Depart: Jul 31, 2026

    From

    $83

    Seen: 1 hour ago

    Seattle (SEA)San Diego (SAN)One-way
    |
    Saver    		Depart: Dec 13, 2026

    From

    $110

    Seen: 1 day ago

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

    From

    $123

    Seen: 16 hours ago

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

    From

    $123

    Seen: 4 hours ago

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

    From

    $123

    Seen: 2 hours ago

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

    From

    $123

    Seen: 2 hours ago

    Seattle (SEA)San Diego (SAN)One-way
    |
    Saver    		Depart: Jul 8, 2026

    From

    $123

    Seen: 2 hours ago

    Seattle (SEA)San Diego (SAN)One-way
    |
    Saver    		Depart: Jun 30, 2026

    From

    $123

    Seen: 7 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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