Saint Louis (STL) to Cancun (CUN) flights
3 airlines fly nonstop from Saint Louis (STL) to Cancun (CUN): American Airlines, Frontier Airlines and Southwest Airlines. The two airports are 1,241 miles (1,997 km) apart. American Airlines is in oneworld. There are also 32 ways to fly it with one stop, through New Orleans, Nashville and Atlanta and more.
Airlines flying nonstop from STL to CUN
- American Airlinesoneworld · bookable with 9 programsWho books it
- Frontier AirlinesNot in an allianceWho books it
- Southwest AirlinesNot in an allianceWho books it
Book STL to CUN with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Alaska Atmos RewardsBooks American Airlines
- American AAdvantageBooks American Airlines
- British Airways ClubBooks American Airlines
- Cathay Pacific Asia MilesBooks American Airlines
- Finnair PlusBooks American Airlines
- Iberia ClubBooks American Airlines
- JAL Mileage BankBooks American Airlines
- Qantas Frequent FlyerBooks American Airlines
- Qatar Airways Privilege ClubBooks American Airlines
STL to CUN with one stop
32 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via New Orleans (MSY)Southwest Airlines the whole way
- Via Nashville (BNA)Southwest Airlines the whole way
- Via Atlanta (ATL)Delta Air Lines, Southwest Airlines and 1 more the whole way
- Via Tampa (TPA)Southwest Airlines, then JetBlue Airways and Breeze Airways
- Via Houston (HOU)Southwest Airlines the whole way
- Via Houston (IAH)United Airlines the whole way
- Via Orlando (MCO)Frontier Airlines and Southwest Airlines the whole way
- Via Kansas City (MCI)Southwest Airlines the whole way
- Via Dallas (DFW)American Airlines and Frontier Airlines the whole way
- Via Miami (MIA)American Airlines the whole way
- Via Fort Lauderdale (FLL)Southwest Airlines, then JetBlue Airways
- Via Charlotte (CLT)American Airlines the whole way
- Via Charleston (CHS)Southwest Airlines, then Breeze Airways
- Via Austin (AUS)Southwest Airlines the whole way
- Via Chicago (MDW)Southwest Airlines the whole way
STL to CUN: common questions
Which airlines fly nonstop from STL to CUN?
American Airlines (oneworld), Frontier Airlines and Southwest Airlines fly nonstop from Saint Louis (STL) to Cancun (CUN).
How far is Saint Louis from Cancun by plane?
Saint Louis (STL) and Cancun (CUN) are 1,241 miles (1,997 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book STL to CUN award flights?
9 programs can book at least one of the nonstop airlines: Alaska Atmos Rewards, American AAdvantage, British Airways Club, Cathay Pacific Asia Miles, Finnair Plus, Iberia Club, JAL Mileage Bank, Qantas Frequent Flyer and 1 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does STL to CUN cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for STL to CUN with taxes and fees.
Where can I connect between Saint Louis and Cancun?
The most direct connections are through New Orleans (MSY), Nashville (BNA), Atlanta (ATL), Tampa (TPA) and Houston (HOU). On 25 of them the same airline flies both flights, for example Southwest Airlines through New Orleans.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.