St. Louis (STL) to San Juan (SJU) flight deal in business from $746

American AirlinesAAAmerican AirlinesDelta Air LinesDLDelta Air LinesUnited AirlinesUAUnited AirlinesSouthwest AirlinesWNSouthwest Airlines
Round Trip•Business Class
United StatesSTL

Lambert-Saint Louis International Airport

St. Louis, United States
Puerto RicoSJU

Luis Muñoz Marín International Airport

San Juan, Puerto Rico
$977 USD
-24%$746 USD
Verified 14 days ago
Extremely Rare Availability
3% of dates checked are available within 10% of the lowest price

Monday, December 14th, 2026

8 round-trip options

Returning
Sat, Dec 19, 2026•5 Day Trip
$834 USD
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Returning
Sun, Dec 20, 2026•6 Day Trip
$934 USD
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Returning
Mon, Dec 21, 2026•7 Day Trip
$934 USD
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Returning
Tue, Dec 22, 2026•8 Day Trip
$934 USD
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Returning
Thu, Dec 24, 2026•10 Day Trip
$834 USD
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Returning
Fri, Dec 25, 2026•11 Day Trip
$834 USD
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Returning
Sun, Dec 27, 2026•13 Day Trip
$1,135 USD
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Returning
Mon, Dec 28, 2026•14 Day Trip
$1,106 USD
Google Flights