St. Louis (STL) to San Juan (SJU) flight deal in business from $367

American AirlinesAAAmerican AirlinesDelta Air LinesDLDelta Air LinesUnited AirlinesUAUnited AirlinesSouthwest AirlinesWNSouthwest Airlines
One Way•Business Class
United StatesSTL

Lambert-Saint Louis International Airport

St. Louis, United States
Puerto RicoSJU

Luis Muñoz Marín International Airport

San Juan, Puerto Rico
$463 USD
-21%$367 USD
Verified 1 day ago
Limited Availability
13% of dates checked are available within 10% of the lowest price

Wednesday, August 19th, 2026

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