Alaska Airlines Flights from Denver to Seattle

Lowest fares from Denver to Seattle

Jun 2026
From$174*
Seen: 17 hours ago
Flight Type One Way|Saver
Jul 2026
From$147*
Seen: 10 hours ago
Flight Type One Way|Saver
Aug 2026
From$98*
Seen: 17 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $147
cmp-daily-histogram-bars-legend-max-price-aria-label $278
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    • Range$147-$278

    *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 Denver to Seattle.*

    $
    keyboard_arrow_down
    One-way low-fare flights Denver to Seattle.*
    From
    To
    Fare Type
    Dates
    Price
    Denver (DEN)Seattle (SEA)One-way
    |
    Saver    		Depart: Aug 12, 2026

    From

    $98

    Seen: 17 hours ago

    Denver (DEN)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 8, 2026

    From

    $98

    Seen: 17 hours ago

    Denver (DEN)Seattle (SEA)One-way
    |
    Saver    		Depart: Sep 29, 2026

    From

    $98

    Seen: 17 hours ago

    Denver (DEN)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 13, 2026

    From

    $98

    Seen: 17 hours ago

    Denver (DEN)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 14, 2026

    From

    $98

    Seen: 17 hours ago

    Denver (DEN)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 28, 2026

    From

    $98

    Seen: 17 hours ago

    Denver (DEN)Seattle (SEA)One-way
    |
    Saver    		Depart: Nov 18, 2026

    From

    $98

    Seen: 17 hours ago

    Denver (DEN)Seattle (SEA)One-way
    |
    Saver    		Depart: Dec 1, 2026

    From

    $98

    Seen: 17 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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