Flights from Boston to Key West from $ 307*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Boston (BOS) to Key West (EYW)

Mar 2026
From$ 417*
Viewed: 17 minutes ago
RoundTrip|Economy
Apr 2026
From$ 307*
Viewed: 17 minutes ago
RoundTrip|Economy
May 2026
From$ 307*
Viewed: 17 minutes ago
RoundTrip|Economy
$ 307
$ 895
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    • Range$ 307-$ 895

    *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 Boston (BOS) to Key West (EYW) flights

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    More United deals on Boston (BOS) to Key West (EYW) flights
    From
    To
    Fare Type
    Dates
    Price
    Boston (BOS)Key West (EYW)Roundtrip
    |
    Economy    		06/01/26 - 06/04/26

    from

    $ 307

    Viewed: 17 minutes ago

    Boston (BOS)Key West (EYW)Roundtrip
    |
    Economy    		06/08/26 - 06/11/26

    from

    $ 307

    Viewed: 17 minutes ago

    Boston (BOS)Key West (EYW)Roundtrip
    |
    Economy    		06/03/26 - 06/10/26

    from

    $ 307

    Viewed: 17 minutes ago

    Boston (BOS)Key West (EYW)Roundtrip
    |
    Economy    		05/06/26 - 05/13/26

    from

    $ 307

    Viewed: 17 minutes ago

    Boston (BOS)Key West (EYW)Roundtrip
    |
    Economy    		04/13/26 - 04/16/26

    from

    $ 307

    Viewed: 17 minutes ago

    Boston (BOS)Key West (EYW)Roundtrip
    |
    Economy    		04/11/26 - 04/15/26

    from

    $ 307

    Viewed: 17 minutes ago

    Boston (BOS)Key West (EYW)Roundtrip
    |
    Economy    		04/12/26 - 04/16/26

    from

    $ 307

    Viewed: 17 minutes ago

    Boston (BOS)Key West (EYW)Roundtrip
    |
    Economy    		04/08/26 - 04/15/26

    from

    $ 307

    Viewed: 17 minutes 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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