Cheapest return flights from St. Louis to Cancun in June from $459

Best time to book flights for St. Louis (STL) to Cancun (CUN) flights at AirHint

AirHint found the following cheapest return flights from St. Louis (STL) to Cancun (CUN) in June 2025 (see full year).

Return flights

13 Jun - 20 Jun Frontier Airlines
22 Jun - 29 Jun Spirit Airlines
18 Jun - 25 Jun Air Canada
15 Jun - 19 Jun Frontier Airlines
19 Jun - 23 Jun Air Canada
05 Jun - 09 Jun Air Canada
06 Jun - 13 Jun Frontier Airlines
06 Jun - 10 Jun Frontier Airlines
08 Jun - 14 Jun Spirit Airlines
22 Jun - 29 Jun Frontier Airlines direct

Also check the deals for one-way flights from St. Louis to Cancun in June.

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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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