Alaska Airlines Flights from Seattle to Denver

Lowest fares from Seattle to Denver

Jul 2026
From$220*
Seen: 17 hours ago
Flight Type One Way|Saver
Aug 2026
From$119*
Seen: 17 hours ago
Flight Type One Way|Saver
Sep 2026
From$119*
Seen: 17 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $119
cmp-daily-histogram-bars-legend-max-price-aria-label $280
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    • Range$119-$280

    *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 Denver.*

    $
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    One-way low-fare flights Seattle to Denver.*
    From
    To
    Fare Type
    Dates
    Price
    Seattle (SEA)Denver (DEN)One-way
    |
    Saver    		Depart: Sep 9, 2026

    From

    $119

    Seen: 17 hours ago

    Seattle (SEA)Denver (DEN)One-way
    |
    Saver    		Depart: Oct 7, 2026

    From

    $119

    Seen: 17 hours ago

    Seattle (SEA)Denver (DEN)One-way
    |
    Saver    		Depart: Oct 17, 2026

    From

    $119

    Seen: 17 hours ago

    Seattle (SEA)Denver (DEN)One-way
    |
    Saver    		Depart: Oct 24, 2026

    From

    $119

    Seen: 17 hours ago

    Seattle (SEA)Denver (DEN)One-way
    |
    Saver    		Depart: Oct 31, 2026

    From

    $119

    Seen: 17 hours ago

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

    From

    $119

    Seen: 17 hours ago

    Seattle (SEA)Denver (DEN)One-way
    |
    Saver    		Depart: Nov 21, 2026

    From

    $119

    Seen: 17 hours ago

    Seattle (SEA)Denver (DEN)One-way
    |
    Saver    		Depart: Dec 5, 2026

    From

    $119

    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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