Cheapest return flights from St. Louis to Puerto Vallarta in March from $466

AirHint found the following cheapest return flights from St. Louis (STL) to Puerto Vallarta (PVR) in March 2026 (see full year).

Return flights

09 Mar - 16 Mar Frontier Airlines
08 Mar - 14 Mar Frontier Airlines
07 Mar - 13 Mar Frontier Airlines
07 Mar - 14 Mar Frontier Airlines
07 Mar - 14 Mar Alaska Airlines direct
12 Mar - 15 Mar American Airlines

Also check the deals for one-way flights from St. Louis to Puerto Vallarta in March.

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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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