Flights from Bilbao to San Francisco from 549€ *

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Bilbao (BIO) to San Francisco (SFO)

Mar 2026
From569€ *
Viewed: 18 hours ago
RoundTrip|Economy
Apr 2026
From549€ *
Viewed: 18 hours ago
RoundTrip|Economy
May 2026
From549€ *
Viewed: 18 hours ago
RoundTrip|Economy
549€
1.2K€
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    • Range549€ -1.167€

    *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 Bilbao (BIO) to San Francisco (SFO) flights

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    More United deals on Bilbao (BIO) to San Francisco (SFO) flights
    From
    To
    Fare Type
    Dates
    Price
    Bilbao (BIO)San Francisco (SFO)Roundtrip
    |
    Economy    		01/05/2026 - 05/05/2026

    from

    549€ 

    Viewed: 18 hours ago

    Bilbao (BIO)San Francisco (SFO)Roundtrip
    |
    Economy    		07/05/2026 - 11/05/2026

    from

    549€ 

    Viewed: 18 hours ago

    Bilbao (BIO)San Francisco (SFO)Roundtrip
    |
    Economy    		13/05/2026 - 17/05/2026

    from

    549€ 

    Viewed: 18 hours ago

    Bilbao (BIO)San Francisco (SFO)Roundtrip
    |
    Economy    		10/05/2026 - 17/05/2026

    from

    549€ 

    Viewed: 18 hours ago

    Bilbao (BIO)San Francisco (SFO)Roundtrip
    |
    Economy    		11/05/2026 - 18/05/2026

    from

    549€ 

    Viewed: 18 hours ago

    Bilbao (BIO)San Francisco (SFO)Roundtrip
    |
    Economy    		03/04/2026 - 07/04/2026

    from

    549€ 

    Viewed: 18 hours ago

    Bilbao (BIO)San Francisco (SFO)Roundtrip
    |
    Economy    		10/04/2026 - 14/04/2026

    from

    549€ 

    Viewed: 18 hours ago

    Bilbao (BIO)San Francisco (SFO)Roundtrip
    |
    Economy    		17/04/2026 - 21/04/2026

    from

    549€ 

    Viewed: 18 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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