Flights from Jacksonville to Seattle from $ 434*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Jacksonville (JAX) to Seattle (SEA)

Apr 2026
From$ 837*
Viewed: 11 hours ago
RoundTrip|Economy
May 2026
From$ 434*
Viewed: 1 day ago
RoundTrip|Economy
Jun 2026
From$ 434*
Viewed: 1 hour ago
RoundTrip|Economy
$ 837
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    • Range$ 837

    *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 Jacksonville (JAX) to Seattle (SEA) flights

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    More United deals on Jacksonville (JAX) to Seattle (SEA) flights
    From
    To
    Fare Type
    Dates
    Price
    Jacksonville (JAX)Seattle (SEA)Roundtrip
    |
    Economy    		06/09/26 - 06/20/26

    from

    $ 434

    Viewed: 1 hour ago

    Jacksonville (JAX)Seattle (SEA)Roundtrip
    |
    Economy    		05/08/26 - 05/13/26

    from

    $ 434

    Viewed: 19 minutes ago

    Jacksonville (JAX)Seattle (SEA)Roundtrip
    |
    Economy    		09/19/26 - 09/27/26

    from

    $ 472

    Viewed: 8 hours ago

    Jacksonville (JAX)Seattle (SEA)Roundtrip
    |
    Economy    		05/29/26 - 05/31/26

    from

    $ 477

    Viewed: 9 hours ago

    Jacksonville (JAX)Seattle (SEA)Roundtrip
    |
    Economy    		05/10/26 - 05/17/26

    from

    $ 477

    Viewed: 9 hours ago

    Jacksonville (JAX)Seattle (SEA)Roundtrip
    |
    Economy    		06/05/26 - 06/07/26

    from

    $ 477

    Viewed: 4 hours ago

    Jacksonville (JAX)Seattle (SEA)Roundtrip
    |
    Economy    		06/29/26 - 07/03/26

    from

    $ 477

    Viewed: 13 hours ago

    Jacksonville (JAX)Seattle (SEA)Roundtrip
    |
    Economy    		07/23/26 - 07/28/26

    from

    $ 477

    Viewed: 4 hours 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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