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Find low faresSouthwest® flights from Cancun to St. Louis
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Low fares from Cancun to St. Louis
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Flight Details
Departing from:
Cancún International Airport
Arriving at:
Lambert-St Louis Int'l Airport
Average flight time:
3 hours 6 minutes
Distance:
1237 miles
Route Information
76† Weekly flights
- 1‡ Nonstop flight per day Monday through Friday
- 2‡ Nonstop flights on Saturday
- 2‡ Nonstop flights on Sunday
† Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.
‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.
Questions we hear the most
The average flight time from Cancun to St. Louis is 3 hours 6 minutes.
There are 76 weekly flights from Cancun to St. Louis on Southwest Airlines.
Yes, Southwest flies nonstop from Cancun to St. Louis once per day from Monday through Friday.
Yes, Southwest flies nonstop from Cancun to St. Louis 2 times per day on Saturdays and Sundays.
To find the lowest fares by day and time to fly Cancun to St. Louis with Southwest, check out our Low Fare Calendar.
You can rent a car at Lambert-St Louis Int'l Airport book yours with your flight.
Yes! Flights from Cancun to St. Louis—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
Check the status of your upcoming Southwest flight.
Check out the Southwest Airlines® Help Center for answers about everything Southwest.