Alaska Airlines Flights from Detroit to Seattle

Lowest fares from Detroit to Seattle

Sep 2026
From$264*
Seen: 11 hours ago
Flight Type One Way|Saver
Oct 2026
From$129*
Seen: 11 hours ago
Flight Type One Way|Saver
Nov 2026
From$129*
Seen: 11 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $129
cmp-daily-histogram-bars-legend-max-price-aria-label $509
Displaying fares for September-2026
  • DTW–SEA, Sep 10, 2026: From $509
    10

    Th

    SEP

  • DTW–SEA, Sep 11, 2026: From $400
    11

    Fr

  • DTW–SEA, Sep 12, 2026: From $509
    12

    Sa

  • DTW–SEA, Sep 13, 2026: From $509
    13

    Su

  • DTW–SEA, Sep 14, 2026: From $509
    14

    Mo

  • DTW–SEA, Sep 15, 2026: From $509
    15

    Tu

  • DTW–SEA, Sep 16, 2026: From $509
    16

    We

  • DTW–SEA, Sep 17, 2026: From $389
    17

    Th

  • DTW–SEA, Sep 18, 2026: From $389
    18

    Fr

  • DTW–SEA, Sep 19, 2026: From $389
    19

    Sa

  • DTW–SEA, Sep 20, 2026: From $389
    20

    Su

  • DTW–SEA, Sep 21, 2026: From $389
    21

    Mo

  • DTW–SEA, Sep 22, 2026: From $389
    22

    Tu

  • DTW–SEA, Sep 23, 2026: From $324
    23

    We

  • DTW–SEA, Sep 24, 2026: From $324
    24

    Th

  • DTW–SEA, Sep 25, 2026: From $324
    25

    Fr

  • DTW–SEA, Sep 26, 2026: From $324
    26

    Sa

  • DTW–SEA, Sep 27, 2026: From $324
    27

    Su

  • DTW–SEA, Sep 28, 2026: From $324
    28

    Mo

  • DTW–SEA, Sep 29, 2026: From $324
    29

    Tu

  • DTW–SEA, Sep 30, 2026: From $264
    30

    We

  • DTW–SEA, Oct 1, 2026: From $129
    01

    Th

    OCT

  • DTW–SEA, Oct 2, 2026: From $129
    02

    Fr

  • DTW–SEA, Oct 3, 2026: From $129
    03

    Sa

  • DTW–SEA, Oct 4, 2026: From $264
    04

    Su

  • DTW–SEA, Oct 5, 2026: From $129
    05

    Mo

  • DTW–SEA, Oct 6, 2026: From $129
    06

    Tu

  • DTW–SEA, Oct 7, 2026: From $129
    07

    We

  • DTW–SEA, Oct 8, 2026: From $264
    08

    Th

  • DTW–SEA, Oct 9, 2026: From $264
    09

    Fr

    • Range$129-$509

    *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 Detroit to Seattle.*

    $
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    One-way low-fare flights Detroit to Seattle.*
    From
    To
    Fare Type
    Dates
    Price
    Detroit (DTW)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 22, 2027

    From

    $129

    Seen: 11 hours ago

    Detroit (DTW)Seattle (SEA)One-way
    |
    Saver    		Depart: Jan 29, 2027

    From

    $129

    Seen: 11 hours ago

    Detroit (DTW)Seattle (SEA)One-way
    |
    Saver    		Depart: Feb 6, 2027

    From

    $129

    Seen: 11 hours ago

    Detroit (DTW)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 1, 2026

    From

    $129

    Seen: 11 hours ago

    Detroit (DTW)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 2, 2026

    From

    $129

    Seen: 11 hours ago

    Detroit (DTW)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 5, 2026

    From

    $129

    Seen: 11 hours ago

    Detroit (DTW)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 6, 2026

    From

    $129

    Seen: 11 hours ago

    Detroit (DTW)Seattle (SEA)One-way
    |
    Saver    		Depart: Oct 13, 2026

    From

    $129

    Seen: 11 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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