Flights from Shannon to San Francisco from $ 1,053*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Shannon (SNN) to San Francisco (SFO)

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May 2026
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Jun 2026
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Jul 2026
From$ 1,053*
Viewed: 14 hours ago
RoundTrip|Economy
Displaying fares for May-2026
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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 Shannon (SNN) to San Francisco (SFO) flights

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    More United deals on Shannon (SNN) to San Francisco (SFO) flights
    From
    To
    Fare Type
    Dates
    Price
    Shannon (SNN)San Francisco (SFO)Roundtrip
    |
    Economy    		07/24/26 - 07/26/26

    from

    $ 1,053

    Viewed: 14 hours ago

    Shannon (SNN)San Francisco (SFO)Roundtrip
    |
    Economy    		07/23/26 - 11/19/26

    from

    $ 1,254

    Viewed: 8 hours ago

    Shannon (SNN)San Francisco (SFO)Roundtrip
    |
    Economy    		07/24/26 - 07/26/26

    from

    $ 1,362

    Viewed: 14 hours ago

    Shannon (SNN)San Francisco (SFO)Roundtrip
    |
    Economy    		07/24/26 - 07/26/26

    from

    $ 1,541

    Viewed: 14 hours ago

    Shannon (SNN)San Francisco (SFO)Roundtrip
    |
    Economy    		07/23/26 - 11/19/26

    from

    $ 1,568

    Viewed: 8 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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