Alaska Airlines Flights from Denver to Seattle

Lowest fares from Denver to Seattle

Aug 2026
From$102*
Seen: 1 hour ago
Flight Type One Way|Saver
Sep 2026
From$86*
Seen: 12 hours ago
Flight Type One Way|Saver
Oct 2026
From$86*
Seen: 12 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $86
cmp-daily-histogram-bars-legend-max-price-aria-label $295
Displaying fares for August-2026
  • DEN–SEA, Aug 12, 2026: From $295
    12

    We

    AUG

  • DEN–SEA, Aug 13, 2026: From $295
    13

    Th

  • DEN–SEA, Aug 14, 2026: From $295
    14

    Fr

  • DEN–SEA, Aug 15, 2026: From $295
    15

    Sa

  • DEN–SEA, Aug 16, 2026: From $295
    16

    Su

  • DEN–SEA, Aug 17, 2026: From $295
    17

    Mo

  • DEN–SEA, Aug 18, 2026: From $295
    18

    Tu

  • DEN–SEA, Aug 19, 2026: From $235
    19

    We

  • DEN–SEA, Aug 20, 2026: From $235
    20

    Th

  • DEN–SEA, Aug 21, 2026: From $235
    21

    Fr

  • DEN–SEA, Aug 22, 2026: From $235
    22

    Sa

  • DEN–SEA, Aug 23, 2026: From $235
    23

    Su

  • DEN–SEA, Aug 24, 2026: From $235
    24

    Mo

  • DEN–SEA, Aug 25, 2026: From $235
    25

    Tu

  • DEN–SEA, Aug 26, 2026: From $185
    26

    We

  • DEN–SEA, Aug 27, 2026: From $185
    27

    Th

  • DEN–SEA, Aug 28, 2026: From $185
    28

    Fr

  • DEN–SEA, Aug 29, 2026: From $185
    29

    Sa

  • DEN–SEA, Aug 30, 2026: From $195
    30

    Su

  • DEN–SEA, Aug 31, 2026: From $102
    31

    Mo

  • DEN–SEA, Sep 1, 2026: From $86
    01

    Tu

    SEP

  • DEN–SEA, Sep 2, 2026: From $86
    02

    We

  • DEN–SEA, Sep 3, 2026: From $157
    03

    Th

  • DEN–SEA, Sep 4, 2026: From $131
    04

    Fr

  • DEN–SEA, Sep 5, 2026: From $86
    05

    Sa

  • DEN–SEA, Sep 6, 2026: From $160
    06

    Su

  • DEN–SEA, Sep 7, 2026: From $274
    07

    Mo

  • DEN–SEA, Sep 8, 2026: From $131
    08

    Tu

  • DEN–SEA, Sep 9, 2026: From $86
    09

    We

  • DEN–SEA, Sep 10, 2026: From $102
    10

    Th

  • DEN–SEA, Sep 11, 2026: From $131
    11

    Fr

    • Range$86-$295

    *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: Sep 29, 2026

    From

    $86

    Seen: 12 hours ago

    Denver (DEN)Seattle (SEA)One-way
    |
    Saver    		Depart: Dec 15, 2026

    From

    $86

    Seen: 12 hours ago

    Denver (DEN)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 5, 2027

    From

    $86

    Seen: 12 hours ago

    Denver (DEN)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 12, 2027

    From

    $86

    Seen: 12 hours ago

    Denver (DEN)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 19, 2027

    From

    $86

    Seen: 12 hours ago

    Denver (DEN)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 26, 2027

    From

    $86

    Seen: 12 hours ago

    Denver (DEN)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 27, 2027

    From

    $86

    Seen: 12 hours ago

    Denver (DEN)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 30, 2027

    From

    $86

    Seen: 12 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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