Cheapest one-way flights from St. Louis to Cancun in May from $226

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

AirHint found the following cheapest one-way flights from St. Louis (STL) to Cancun (CUN) in May 2025 (see full year).

One-Way flights

03 May Frontier Airlines direct
06 May Frontier Airlines direct
09 May Frontier Airlines direct
12 May Frontier Airlines direct
15 May Frontier Airlines direct
24 May Southern Airways Express
24 May Southwest Airlines direct

Also check the deals for return flights from St. Louis to Cancun in May.

Skyscanner

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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