Southwest® flights from St. Louis to Mexico
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Popular flight deals and low fares from St. Louis
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St. Louis (STL)to
Cancun (CUN)Depart: 10/04/2026
From
$246
Seen: 19 hrs ago
One-way
Basic
St. Louis (STL)to
Los Cabos (SJD)Depart: 09/22/2026
From
$289
Seen: 18 hrs ago
One-way
Basic
St. Louis (STL)to
Puerto Vallarta (PVR)Depart: 09/30/2026
From
$296
Seen: 21 hrs ago
One-way
Basic
*Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.
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From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| St. Louis (STL) | Los Cabos (SJD) | One-way / Basic | Depart: 10/25/2026 | From $205 Seen: 7 hrs ago |
| St. Louis (STL) | Cancun (CUN) | One-way / Basic | Depart: 02/08/2027 | From $241 Seen: 20 hrs ago |
| St. Louis (STL) | Puerto Vallarta (PVR) | One-way / Basic | Depart: 11/09/2026 | From $281 Seen: 10 hrs ago |
*Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.
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