Flights from London to Boston from $ 877*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from London (LHR) to Boston (BOS)

Apr 2026
From$ 1,012*
Viewed: 20 hours ago
RoundTrip|Economy
May 2026
From$ 951*
Viewed: 21 hours ago
RoundTrip|Economy
Jun 2026
No result for this month
$ 951
Displaying fares for April-2026
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    • Range$ 951-$ 1,507

    *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 London (LHR) to Boston (BOS) flights

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    More United deals on London (LHR) to Boston (BOS) flights
    From
    To
    Fare Type
    Dates
    Price
    London (LHR)Boston (BOS)Roundtrip
    |
    Economy    		05/09/26 - 05/15/26

    from

    $ 951

    Viewed: 21 hours ago

    London (LHR)Boston (BOS)Roundtrip
    |
    Economy    		04/19/26 - 05/11/26

    from

    $ 1,012

    Viewed: 20 hours ago

    London (LHR)Boston (BOS)Roundtrip
    |
    Economy    		05/11/26 - 05/15/26

    from

    $ 1,467

    Viewed: 21 hours ago

    London (LHR)Boston (BOS)Roundtrip
    |
    Economy    		05/10/26 - 05/15/26

    from

    $ 1,507

    Viewed: 21 hours ago

    London (LHR)Boston (BOS)Roundtrip
    |
    Economy    		10/01/26 - 10/05/26

    from

    $ 877

    Viewed: 13 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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