Flights from Las Vegas to Saint Louis from $ 365*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Las Vegas (LAS) to Saint Louis (STL)

Try alternate month or interact with individual days below in order to find offers.
Mar 2026
No result for this month
Apr 2026
From$ 451*
Viewed: 7 hours ago
RoundTrip|Economy
May 2026
From$ 365*
Viewed: 18 hours ago
RoundTrip|Economy
$ 451
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    • Range$ 451

    *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 Las Vegas (LAS) to Saint Louis (STL) flights

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    More United deals on Las Vegas (LAS) to Saint Louis (STL) flights
    From
    To
    Fare Type
    Dates
    Price
    Las Vegas (LAS)Saint Louis (STL)Roundtrip
    |
    Economy    		04/02/26 - 04/06/26

    from

    $ 451

    Viewed: 7 hours ago

    Las Vegas (LAS)Saint Louis (STL)Roundtrip
    |
    Economy    		04/02/26 - 04/06/26

    from

    $ 635

    Viewed: 7 hours ago

    Las Vegas (LAS)Saint Louis (STL)Roundtrip
    |
    Economy    		04/02/26 - 04/06/26

    from

    $ 850

    Viewed: 7 hours ago

    Las Vegas (LAS)Saint Louis (STL)Roundtrip
    |
    Economy    		05/07/26 - 05/11/26

    from

    $ 365

    Viewed: 18 hours ago

    Las Vegas (LAS)Saint Louis (STL)Roundtrip
    |
    Economy    		09/24/26 - 09/29/26

    from

    $ 455

    Viewed: 15 hours ago

    Las Vegas (LAS)Saint Louis (STL)Roundtrip
    |
    Economy    		05/07/26 - 05/11/26

    from

    $ 592

    Viewed: 18 hours ago

    Las Vegas (LAS)Saint Louis (STL)Roundtrip
    |
    Economy    		05/07/26 - 05/11/26

    from

    $ 617

    Viewed: 18 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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