AirHint found the following cheapest return flights from St. Louis (STL) to Cancun (CUN) in April 2026 (see full year).
Return flights
| 02 Apr - 09 Apr | Volaris | direct | |
| 03 Apr - 03 Apr | Volaris | direct | |
| 01 Apr - 06 Apr | Volaris | direct | |
| 08 Apr - 08 Apr | Frontier Airlines | direct | |
| 25 Apr - 29 Apr | Southwest Airlines | direct |
Also check the deals for one-way flights from St. Louis to Cancun in April.
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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
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