St. Louis (STL) to San Juan (SJU) flight deal in business from $746
STLLambert-Saint Louis International Airport
St. Louis, United States
SJULuis Muñoz Marín International Airport
San Juan, Puerto Rico
$977 USD
-24%$746 USD
Verified 14 days agoJuly 2026
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Extremely Rare Availability
3% of dates checked are available within 10% of the lowest price
Friday, July 3rd, 2026
0 round-trip options
No flight details available for this date.