Flights from Saint Louis to Mexico from $ 379*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Find United's best fares from Saint Louis to Mexico

$
keyboard_arrow_down

  • Saint Louis (STL)to

    Veracruz (VER)
    02/02/26 - 02/16/26
    from
    $ 528
    Viewed: 16 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)
04/22/26 - 04/30/26

Roundtrip

Business

from
$ 867
Viewed: 13 hours ago

Saint Louis (STL)to

Cabo San Lucas (SJD)
02/24/26 - 03/10/26

Roundtrip

Business

from
$ 1,098
Viewed: 1 hour ago

Saint Louis (STL)to

Mexico City (MEX)
02/19/26 - 02/23/26

Roundtrip

Business

from
$ 820
Viewed: 1 day ago

Saint Louis (STL)to

Puerto Vallarta (PVR)
01/08/26 - 01/14/26

Roundtrip

Business

from
$ 864
Viewed: 1 day 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.