Flights from London to Saint Louis from £ 1,045*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from London (LHR) to Saint Louis (STL)

May 2026
From£ 1,120*
Viewed: 1 hour ago
RoundTrip|Economy
Jun 2026
From£ 1,045*
Viewed: 1 hour ago
RoundTrip|Economy
Jul 2026
From£ 1,045*
Viewed: 1 hour ago
RoundTrip|Economy
cmp-daily-histogram-bars-legend-min-price-aria-label £ 1.0K
cmp-daily-histogram-bars-legend-max-price-aria-label £ 1.5K
Displaying fares for May-2026
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    • Range£ 1,045-£ 1,466

    *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 Saint Louis (STL) flights

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    More United deals on London (LHR) to Saint Louis (STL) flights
    From
    To
    Fare Type
    Dates
    Price
    London (LHR)Saint Louis (STL)Roundtrip
    |
    Economy    		01/07/2026 - 15/07/2026

    from

    £ 1,045

    Viewed: 1 hour ago

    London (LHR)Saint Louis (STL)Roundtrip
    |
    Economy    		07/07/2026 - 21/07/2026

    from

    £ 1,045

    Viewed: 1 hour ago

    London (LHR)Saint Louis (STL)Roundtrip
    |
    Economy    		08/07/2026 - 22/07/2026

    from

    £ 1,045

    Viewed: 1 hour ago

    London (LHR)Saint Louis (STL)Roundtrip
    |
    Economy    		14/07/2026 - 28/07/2026

    from

    £ 1,045

    Viewed: 1 hour ago

    London (LHR)Saint Louis (STL)Roundtrip
    |
    Economy    		01/07/2026 - 08/07/2026

    from

    £ 1,045

    Viewed: 1 hour ago

    London (LHR)Saint Louis (STL)Roundtrip
    |
    Economy    		07/07/2026 - 14/07/2026

    from

    £ 1,045

    Viewed: 1 hour ago

    London (LHR)Saint Louis (STL)Roundtrip
    |
    Economy    		14/07/2026 - 21/07/2026

    from

    £ 1,045

    Viewed: 1 hour ago

    London (LHR)Saint Louis (STL)Roundtrip
    |
    Economy    		15/06/2026 - 22/06/2026

    from

    £ 1,045

    Viewed: 1 hour 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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