Flights from Portland, OR to Porto from $ 913*

Promotion Code

Featured daily fares for flights from Portland, OR (PDX) to Porto (OPO)

$ 913
$ 4.5K
Displaying fares for April-2026
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  • Range$ 913-$ 4,503

    More United deals on Portland, OR (PDX) to Porto (OPO) flights

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    More United deals on Portland, OR (PDX) to Porto (OPO) flights
    From
    To
    Fare Type
    Dates
    Price
    Portland, OR (PDX)Porto (OPO)Roundtrip
    |
    Economy
    04/21/26 - 04/28/26

    from

    $ 913

    Viewed: 3 hours ago

    Portland, OR (PDX)Porto (OPO)Roundtrip
    |
    Economy
    04/23/26 - 05/07/26

    from

    $ 963

    Viewed: 3 hours ago

    Portland, OR (PDX)Porto (OPO)Roundtrip
    |
    Economy
    04/27/26 - 05/04/26

    from

    $ 983

    Viewed: 3 hours ago

    Portland, OR (PDX)Porto (OPO)Roundtrip
    |
    Economy
    07/15/26 - 07/29/26

    from

    $ 1,015

    Viewed: 3 hours ago

    Portland, OR (PDX)Porto (OPO)Roundtrip
    |
    Economy
    07/15/26 - 07/22/26

    from

    $ 1,015

    Viewed: 3 hours ago

    Portland, OR (PDX)Porto (OPO)Roundtrip
    |
    Economy
    04/23/26 - 04/27/26

    from

    $ 1,022

    Viewed: 3 hours ago

    Portland, OR (PDX)Porto (OPO)Roundtrip
    |
    Economy
    04/27/26 - 05/11/26

    from

    $ 1,028

    Viewed: 3 hours ago

    Portland, OR (PDX)Porto (OPO)Roundtrip
    |
    Economy
    07/08/26 - 07/22/26

    from

    $ 1,050

    Viewed: 3 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.