Search flights from Saint Louis (STL) to San Juan (SJU)

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Cheapest flights to San Juan

The cheapest flights available in the next 60 days – prices are updated regularly

Flying from Saint Louis to San Juan: things to know

The most popular route is from Lambert - St. Louis International Airport in Saint Louis to Luis Muñoz Marín International Airport in San Juan. On average this flight takes 7 hours 51 minutes one-way and costs $1,639 round-trip.

Most popular route
Lambert - St. Louis International Airport (STL) to Luis Muñoz Marín International Airport (SJU)
Average flight time
7 hours 51 minutes
Average round-trip price
$1,639
Fly from Saint Louis to San Juan
5 airlines

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Airlines that fly from Saint Louis to San Juan

Airline options may vary according to recently booked flights and your search terms

  • American Airlines
  • Spirit Airlines
  • Frontier Airlines
  • United Airlines
  • Southwest Airlines

Frequently asked questions

Fly to more destinations from Saint Louis

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