Flights from Detroit to Seattle from $ 357*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Detroit (DTW) to Seattle (SEA)

Try alternate month or interact with individual days below in order to find offers.
Mar 2026
No result for this month
Apr 2026
From$ 357*
Viewed: 8 hours ago
RoundTrip|Economy
May 2026
From$ 382*
Viewed: 8 hours ago
RoundTrip|Economy
$ 357
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    • Range$ 357-$ 617

    *Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

    More United deals on Detroit (DTW) to Seattle (SEA) flights

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    More United deals on Detroit (DTW) to Seattle (SEA) flights
    From
    To
    Fare Type
    Dates
    Price
    Detroit (DTW)Seattle (SEA)Roundtrip
    |
    Economy    		06/04/26 - 06/08/26

    from

    $ 407

    Viewed: 47 minutes ago

    Detroit (DTW)Seattle (SEA)Roundtrip
    |
    Economy    		06/15/26 - 06/26/26

    from

    $ 407

    Viewed: 4 hours ago

    Detroit (DTW)Seattle (SEA)Roundtrip
    |
    Economy    		04/25/26 - 05/02/26

    from

    $ 357

    Viewed: 8 hours ago

    Detroit (DTW)Seattle (SEA)Roundtrip
    |
    Economy    		05/02/26 - 05/11/26

    from

    $ 382

    Viewed: 8 hours ago

    Detroit (DTW)Seattle (SEA)Roundtrip
    |
    Economy    		04/23/26 - 05/03/26

    from

    $ 407

    Viewed: 21 hours ago

    Detroit (DTW)Seattle (SEA)Roundtrip
    |
    Economy    		06/16/26 - 06/23/26

    from

    $ 407

    Viewed: 1 day ago

    Detroit (DTW)Seattle (SEA)Roundtrip
    |
    Economy    		10/09/26 - 10/13/26

    from

    $ 407

    Viewed: 17 hours ago

    Detroit (DTW)Seattle (SEA)Roundtrip
    |
    Economy    		08/12/26 - 08/19/26

    from

    $ 407

    Viewed: 1 day ago

    *Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

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