Cheapest return flights from St. Louis to Cancun in June from $481

AirHint found the following cheapest return flights from St. Louis (STL) to Cancun (CUN) in June 2026 (see full year).

Return flights

17 Jun - 22 Jun Frontier Airlines direct
25 Jun - 28 Jun Frontier Airlines
04 Jun - 09 Jun Frontier Airlines direct
08 Jun - 12 Jun Frontier Airlines
09 Jun - 15 Jun Frontier Airlines direct
05 Jun - 09 Jun Frontier Airlines
05 Jun - 09 Jun Frontier Airlines direct
25 Jun - 28 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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