Your next trip, last seen at €159
Lowest observedWhen to fly
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
Short answer
We have seen Frontier Airlines fares from St Louis to Cancun, non-stop. March 2027 is the cheapest month in our observations, at €460. These are prices our searches returned on the dates shown, not quotes; run a live search for today's fare.
Short answer
We have seen Frontier Airlines fares from St Louis to Cancun, non-stop. March 2027 is the cheapest month in our observations, at €460. These are prices our searches returned on the dates shown, not quotes; run a live search for today's fare.
About this route
Explore the fares we observed from St Louis to Cancun. Prices move often, so pick your dates to see the latest options.
- Route distance
- 1,968 km
- Reported fastest flight
- 3h 09m
- Airlines seen
- Frontier Airlines, Air Canada, American Airlines, Southwest Airlines, United Airlines
- Alternative airports
- SUS
Route-level information; individual journeys vary.
Published schedules report non-stop service with Frontier Airlines. Check current timetables.
A clearer picture of your fare
Frequently asked
When is the cheapest month to fly from St Louis to Cancun?
In our observations March 2027 is the cheapest month so far, at €460.
Are there direct flights from St Louis to Cancun?
Yes. We have seen non-stop flights on this route, flown by Frontier Airlines.
Which airlines fly from St Louis to Cancun?
These are the carriers we have seen on the route: Frontier Airlines, Air Canada, American Airlines, Southwest Airlines, United Airlines.
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
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Recently observed fares. Prices may change.
Last checked: 8 Oct 2026