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St. Louis to Puerto Rico flight

Flying From St. Louis to Puerto Rico: What You Need to Know

Cheapest one-way flight price NZD 164
Cheapest round-trip ticket price NZD 328
Off-season for travel May
Peak season for travel June
Popular airline Delta Air Lines
Cheapest month September

Compare multiple airlines at once to find the best flight deals from St. Louis to Puerto Rico.

Airlines Flying From St. Louis to Puerto Rico
Delta Air Lines logo Delta Air Lines American Airlines logo American Airlines

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Find the Cheapest Flights to Puerto Rico From St. Louis

Looking for cheap flights from St. Louis to Puerto Rico? Check out prices for the next 90 days, starting at just NZD 164 for a one-way ticket and NZD 328 for a round trip.

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

FAQs: Flights From St. Louis to Puerto Rico

  • When is it the cheapest time to fly from St. Louis to Puerto Rico?

    According to our flights calendar over the next 90 days, it seems the cheapest date is on 2025-09-15 for one-way flights.
  • Based on our flight data, the average flight time from St. Louis to Puerto Rico is approximately 4 hours 25 minutes based on our most popular routes from St. Louis to San Juan. The time may also vary depending on your destination.
  • The cheapest airline flying to Puerto Rico from St. Louis is Delta Air Lines serving route from St. Louis to San Juan.
  • There are direct flights from St. Louis to Puerto Rico. San Juan, Aguadilla, and Ponce are all popular destinations in Puerto Rico.