Boston to Shannon Flights on Aer Lingus from $292.00*

Promo Code

Book Boston to Shannon flight deals*

Jul 2025
From$511.60*
Seen: 22 hrs ago
Flight Type Round Trip/Economy
$511.60
$1.0K
Displaying fares for July-2025
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    • Range$511.60-$1,016.71

    * Fares displayed include air transportation charges, taxes and fees. Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Fares are economy class and may include connections with our partner airlines. Modifying this information may result in a different fare. Additional baggage fees and charges for optional products and services may apply.

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    Book Boston to Shannon flight deals*

    Book Boston to Shannon flight deals*
    From
    To
    Fare Type
    Dates
    Price
    Boston (BOS)Shannon (SNN)Roundtrip*
    /
    Economy    		Feb 9 2026 - Feb 19 2026

    From

    $486.50

    Seen: 10 hrs ago

    Boston (BOS)Shannon (SNN)Roundtrip*
    /
    Economy    		Apr 19 2026 - Apr 24 2026

    From

    $490.61

    Seen: 1 hour ago

    Boston (BOS)Shannon (SNN)Roundtrip*
    /
    Economy    		May 19 2026 - May 26 2026

    From

    $531.11

    Seen: 7 hrs ago

    Boston (BOS)Shannon (SNN)Roundtrip*
    /
    Economy    		Apr 17 2026 - Apr 24 2026

    From

    $536.50

    Seen: 21 hrs ago

    Boston (BOS)Shannon (SNN)Roundtrip*
    /
    Economy    		Apr 18 2026 - Apr 24 2026

    From

    $536.61

    Seen: 1 hour ago

    * Fares displayed include air transportation charges, taxes and fees. Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Fares are economy class and may include connections with our partner airlines. Modifying this information may result in a different fare. Additional baggage fees and charges for optional products and services may apply.