Southwest Airlines
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United States
Lambert-Saint Louis International Airport
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Mexico
Cancún International Airport
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Scan through all non-stop flights from St. Louis to Cancún. The full flight schedule below gives an overview of all non-stop flights from STL to CUN, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
Cancún is a tropical destination known for its warm climate, with temperatures between 25°C and 30°C (77°F to 86°F) throughout the year. The area is characterized by high humidity and frequent rainfall.
Being located north of the equator, Cancún experiences its dry season from November to April, making this the perfect time to visit. In this period, you can expect mostly dry conditions, while the wet season will see days of rain. Humidity and temperatures are consistently high all year long.
In total there are 3 airlines operating nonstop flights from St. Louis STL to Cancún CUN. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.
Click an airline below to view their STL CUN flight schedule.
Flights from STL to CUN are operated 15 times a week, with an average of 2 flights per day. Departure times vary between 05:45 - 13:20. The earliest flight departs at 05:45, the last flight departs at 13:20. However, this depends on the date you are flying so please check with the full flight schedule above to see which departure times are available on your preferred date(s) of travel.
You can fly in Economy and Business Class. Premium Economy and First Class are not available on this route (at least not as a non-stop flight).
The fastest direct flight from St. Louis to Cancún takes 3 hours and 21 minutes. The flight distance between St. Louis and Cancún is 1,240 miles (or 1,996 km).
There is 1 airport in Cancún: Cancún International Airport (CUN).
There are 15 flights per week flying from St. Louis to Cancún (as of April 2026).
3 hours and 21 minutes is the average flight time from St. Louis to Cancún.
The distance from St. Louis to Cancún is 1,240 miles (1,996 kilometers).
American Airlines, Frontier Airlines and Southwest Airlines are flying nonstop from St. Louis to Cancún.
Oneworld is currently the only alliance flying nonstop from St. Louis to Cancún.
You can fly non-stop in Economy and Business Class.
Aircraft types that fly from St. Louis to Cancún:
The earliest flight departs at 05:45 from St. Louis and arrives at 08:55 at Cancún.
The latest flight departs at 13:20 from St. Louis and arrives at 16:30 at Cancún.
1,240 miles (1,996 km) · 3h 21m
05:45
08:55
Southwest Airlines
WN 1985
Southwest Airlines
Boeing 757
Y
W
J
F
06:00
09:17
Frontier Airlines
F9 86
Frontier Airlines
Airbus A321-100/200
Y
W
J
F
06:15
09:32
Frontier Airlines
F9 86
Frontier Airlines
Airbus A321-100/200
Y
W
J
F
07:11
10:32
American Airlines
Oneworld
AA 2796
American Airlines
Boeing 737-800
Y
W
J
F
08:50
12:05
Southwest Airlines
WN 1985
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
09:10
12:10
Southwest Airlines
WN 1985
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
10:05
13:20
Southwest Airlines
WN 1995
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
10:05
13:10
Southwest Airlines
WN 1995
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
11:10
14:25
Southwest Airlines
WN 1995
Southwest Airlines
Boeing 757
Y
W
J
F
11:10
14:10
Southwest Airlines
WN 1995
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
11:25
14:25
Southwest Airlines
WN 1995
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
11:25
14:25
Southwest Airlines
WN 1995
Southwest Airlines
Boeing 757
Y
W
J
F
13:20
16:30
Southwest Airlines
WN 1995
Southwest Airlines
Boeing 757
Y
W
J
F
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