Flights from Kalispell to Porto from $ 1,336*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Kalispell (FCA) to Porto (OPO)

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Mar 2026
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Apr 2026
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May 2026
From$ 1,336*
Viewed: 20 hours ago
RoundTrip|Economy
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    • *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 Kalispell (FCA) to Porto (OPO) flights

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    More United deals on Kalispell (FCA) to Porto (OPO) flights
    From
    To
    Fare Type
    Dates
    Price
    Kalispell (FCA)Porto (OPO)Roundtrip
    |
    Economy    		05/24/26 - 06/03/26

    from

    $ 1,336

    Viewed: 20 hours ago

    Kalispell (FCA)Porto (OPO)Roundtrip
    |
    Economy    		05/24/26 - 06/03/26

    from

    $ 1,910

    Viewed: 20 hours ago

    Kalispell (FCA)Porto (OPO)Roundtrip
    |
    Economy    		05/24/26 - 06/03/26

    from

    $ 2,335

    Viewed: 20 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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