San Juan (SJU) to St. Louis (STL) flight deal from $373 USD in business class – flightdeals.net

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One Way•Business Class

Luis Muñoz Marín International Airport

San Juan, Puerto Rico

Lambert-Saint Louis International Airport

St. Louis, United States

$541 USD

-31%$373 USD

Verified Apr 8, 2026 at 7:45 PM

April 2026

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30 31 1 2 3 4 5 6 7 8$898 9$593 10$593 11$583 12$623 13$628 14$607 15$538 16$608 17$608 18$538 19$608 20$608 21$538 22$521 23$493 24$587 25$521 26$588 27$588 28$493 29$427 30$450 1$508 2$453 3$548

Extremely Rare Availability

4% of dates checked are available within 10% of the lowest price

Friday, April 3rd, 2026

No flight details available for this date.