Flights from Porto to Sun Valley from € 950*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Porto (OPO) to Sun Valley (SUN)

Jun 2026
From€ 985*
Viewed: 7 hours ago
RoundTrip|Economy
Jul 2026
From€ 1.270*
Viewed: 7 hours ago
RoundTrip|Economy
Aug 2026
From€ 950*
Viewed: 7 hours ago
RoundTrip|Economy
cmp-daily-histogram-bars-legend-min-price-aria-label € 985
cmp-daily-histogram-bars-legend-max-price-aria-label € 1.5K
Displaying fares for June-2026
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    • Range€ 985-€ 1.505

    *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 Porto (OPO) to Sun Valley (SUN) flights

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    More United deals on Porto (OPO) to Sun Valley (SUN) flights
    From
    To
    Fare Type
    Dates
    Price
    Porto (OPO)Sun Valley (SUN)Roundtrip
    |
    Economy    		05/09/2026 - 19/09/2026

    from

    € 950

    Viewed: 7 hours ago

    Porto (OPO)Sun Valley (SUN)Roundtrip
    |
    Economy    		28/08/2026 - 01/09/2026

    from

    € 950

    Viewed: 7 hours ago

    Porto (OPO)Sun Valley (SUN)Roundtrip
    |
    Economy    		25/08/2026 - 01/09/2026

    from

    € 950

    Viewed: 7 hours ago

    Porto (OPO)Sun Valley (SUN)Roundtrip
    |
    Economy    		31/08/2026 - 14/09/2026

    from

    € 950

    Viewed: 7 hours ago

    Porto (OPO)Sun Valley (SUN)Roundtrip
    |
    Economy    		30/08/2026 - 06/09/2026

    from

    € 950

    Viewed: 7 hours ago

    Porto (OPO)Sun Valley (SUN)Roundtrip
    |
    Economy    		05/09/2026 - 12/09/2026

    from

    € 953

    Viewed: 7 hours ago

    Porto (OPO)Sun Valley (SUN)Roundtrip
    |
    Economy    		28/08/2026 - 11/09/2026

    from

    € 953

    Viewed: 7 hours ago

    Porto (OPO)Sun Valley (SUN)Roundtrip
    |
    Economy    		27/08/2026 - 31/08/2026

    from

    € 954

    Viewed: 7 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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