STL to SJU from $363 in business – flightdeals.net

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One Way•Business Class

Lambert-Saint Louis International Airport

St. Louis, United States

Luis Muñoz Marín International Airport

San Juan, Puerto Rico

$475 USD

-24%$363 USD

Verified about 10 hours ago

June 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1 2 3 4$673 5$593 6$593 7$583 8$583 9$583 10$643 11$583 12$583 13$528 14$583 15$528 16$528 17$588 18$588 19$538 20$538 21$538 22$483 23$538 24$543 25$505 26$423 27$417 28$417 29$417 30$417 1$516 2$423 3$423 4$396 5$518

Rare Availability

6% of dates checked are available within 10% of the lowest price

Wednesday, June 3rd, 2026

No flight details available for this date.