Flights from Portland, OR to Sioux Falls from $ 306*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Portland, OR (PDX) to Sioux Falls (FSD)

May 2026
From$ 310*
Viewed: 15 hours ago
RoundTrip|Economy
Jun 2026
From$ 310*
Viewed: 15 hours ago
RoundTrip|Economy
Jul 2026
From$ 306*
Viewed: 15 hours ago
RoundTrip|Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $ 310
cmp-daily-histogram-bars-legend-max-price-aria-label $ 644
Displaying fares for May-2026
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    • Range$ 310-$ 644

    *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 Portland, OR (PDX) to Sioux Falls (FSD) flights

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    More United deals on Portland, OR (PDX) to Sioux Falls (FSD) flights
    From
    To
    Fare Type
    Dates
    Price
    Portland, OR (PDX)Sioux Falls (FSD)Roundtrip
    |
    Economy    		07/15/26 - 07/22/26

    from

    $ 306

    Viewed: 15 hours ago

    Portland, OR (PDX)Sioux Falls (FSD)Roundtrip
    |
    Economy    		05/27/26 - 05/30/26

    from

    $ 310

    Viewed: 15 hours ago

    Portland, OR (PDX)Sioux Falls (FSD)Roundtrip
    |
    Economy    		06/02/26 - 06/09/26

    from

    $ 310

    Viewed: 15 hours ago

    Portland, OR (PDX)Sioux Falls (FSD)Roundtrip
    |
    Economy    		05/27/26 - 06/03/26

    from

    $ 310

    Viewed: 15 hours ago

    Portland, OR (PDX)Sioux Falls (FSD)Roundtrip
    |
    Economy    		05/30/26 - 06/06/26

    from

    $ 310

    Viewed: 15 hours ago

    Portland, OR (PDX)Sioux Falls (FSD)Roundtrip
    |
    Economy    		06/02/26 - 06/06/26

    from

    $ 310

    Viewed: 15 hours ago

    Portland, OR (PDX)Sioux Falls (FSD)Roundtrip
    |
    Economy    		07/09/26 - 07/16/26

    from

    $ 329

    Viewed: 15 hours ago

    Portland, OR (PDX)Sioux Falls (FSD)Roundtrip
    |
    Economy    		05/30/26 - 06/03/26

    from

    $ 329

    Viewed: 15 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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