$207 Cheap American Airlines flights St. Louis (STL) to Cancun (CUN)

View $207 flight on Sat, Apr 4, 2026Opens in a new window

$207 Cheap American Airlines flights St. Louis (STL) to Cancun (CUN)

Prices were available within the past 7 days and start at $207 for one-way flights and $434 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, Apr 4 - Wed, Apr 8
STL
St. Louis
CUN
Cancun
$434 Roundtrip, found 1 hour ago
$434
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Sat, Apr 4 from St. Louis to Cancun, returning Wed, Apr 8, priced at $434 found 1 hour ago

Find the cheapest month to fly from St. Louis (STL) to Cancun (CUN)

October is typically the cheapest month to fly

From $211 - $602 per traveler.
Flights from St. Louis (STL) to Cancun (CUN)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Cancun Intl.
Airlines serving
Aeromexico, Air Canada, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Popular airline
Frontier Airlines
Distance
1984 km
Average flight time
4 hours 18 mins