St. Louis (STL) to San Juan (SJU) flight deal in business from $363

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
$475 USD
-24%$363 USD
Verified about 10 hours ago
Rare Availability
6% of dates checked are available within 10% of the lowest price

Friday, October 23rd, 2026

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