Cheapest one-way flights from St. Louis to Cancun in July from $131

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

One-Way flights

28 Jul Spirit Airlines
04 Jul Spirit Airlines
20 Jul Spirit Airlines
28 Jul Frontier Airlines direct
13 Jul Frontier Airlines direct
11 Jul Frontier Airlines direct
14 Jul Frontier Airlines
07 Jul Frontier Airlines
23 Jul Frontier Airlines
23 Jul Frontier Airlines direct

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

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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