Flights from Saint Louis to Mexico from $ 396*

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Changed bag rules and optional services         Cruise Packages

Find United's best fares from Saint Louis to Mexico

$
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  • Saint Louis (STL)to

    Veracruz (VER)
    06/02/26 - 06/09/26
    from
    $ 604
    Viewed: 4 hours ago
    Roundtrip
    Economy

*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.

Business class flights from Saint Louis to Mexico

$

Saint Louis (STL)to

Cancun (CUN)
08/20/26 - 08/24/26

Roundtrip

Business

from
$ 974
Viewed: 8 minutes ago

Saint Louis (STL)to

Cabo San Lucas (SJD)
06/04/26 - 06/10/26

Roundtrip

Business

from
$ 964
Viewed: 23 hours ago

Saint Louis (STL)to

Mexico City (MEX)
04/14/26 - 04/19/26

Roundtrip

Business

from
$ 1,130
Viewed: 1 day ago

Saint Louis (STL)to

Puerto Vallarta (PVR)
06/20/26 - 07/11/26

Roundtrip

Business

from
$ 962
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.