Flights from Washington, D.C. to Shannon from $ 688*

Promotion Code

Featured daily fares for flights from Washington, D.C. (IAD) to Shannon (SNN)

$ 795
$ 6.2K
Displaying fares for March-2026
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  • Range$ 795-$ 6,229

    More United deals on Washington, D.C. (IAD) to Shannon (SNN) flights

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    More United deals on Washington, D.C. (IAD) to Shannon (SNN) flights
    From
    To
    Fare Type
    Dates
    Price
    Washington, D.C. (IAD)Shannon (SNN)Roundtrip
    |
    Economy
    05/03/26 - 05/10/26

    from

    $ 688

    Viewed: 9 hours ago

    Washington, D.C. (IAD)Shannon (SNN)Roundtrip
    |
    Economy
    05/04/26 - 05/11/26

    from

    $ 688

    Viewed: 9 hours ago

    Washington, D.C. (IAD)Shannon (SNN)Roundtrip
    |
    Economy
    05/08/26 - 05/12/26

    from

    $ 702

    Viewed: 9 hours ago

    Washington, D.C. (IAD)Shannon (SNN)Roundtrip
    |
    Economy
    05/09/26 - 05/16/26

    from

    $ 713

    Viewed: 9 hours ago

    Washington, D.C. (IAD)Shannon (SNN)Roundtrip
    |
    Economy
    05/04/26 - 05/18/26

    from

    $ 723

    Viewed: 9 hours ago

    Washington, D.C. (IAD)Shannon (SNN)Roundtrip
    |
    Economy
    08/08/26 - 08/18/26

    from

    $ 723

    Viewed: 3 hours ago

    Washington, D.C. (IAD)Shannon (SNN)Roundtrip
    |
    Economy
    09/13/26 - 09/21/26

    from

    $ 723

    Viewed: 1 day ago

    Washington, D.C. (IAD)Shannon (SNN)Roundtrip
    |
    Economy
    05/09/26 - 05/23/26

    from

    $ 728

    Viewed: 9 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.