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

Return flights

03 Nov - 14 Nov	Frontier Airlines	direct
15 Nov - 22 Nov	Frontier Airlines	direct
07 Nov - 14 Nov	Frontier Airlines
07 Nov - 12 Nov	Frontier Airlines	direct
20 Nov - 23 Nov	Frontier Airlines	direct
05 Nov - 09 Nov	Frontier Airlines
27 Nov - 01 Dec	Frontier Airlines	direct
05 Nov - 09 Nov	Frontier Airlines	direct

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

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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Cheapest return flights from St. Louis to Cancun in November from 210€

Return flights