San Juan (SJU) to St. Louis (STL) flight deal from $218 USD in economy class

AAAmerican Airlines

Round Trip•Economy

SJU

Luis Muñoz Marín International Airport

San Juan, Puerto Rico

STL

Lambert-Saint Louis International Airport

St. Louis, United States

$389 USD

-44%$218 USD

Verified Nov 27, 2025 at 7:18 PM

April 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$232 31$232 1$232 2$232 3$225 4$348 5$355 6$297 7$232 8$225 9$290 10$348 11$400 12$515 13$232 14$232 15$290 16$290 17$232 18$232 19$515 20$232 21$225 22$225 23$290 24$232 25$348 26$509 27$348 28$225 29$290 30$225 1 2 3

Fair Availability

33% of dates checked are available within 10% of the lowest price

Friday, April 24th, 2026

10 round-trip options

Returning

Wed, Apr 29, 2026•5 Day Trip

$232 USD

Google Flights

Returning

Thu, Apr 30, 2026•6 Day Trip

$355 USD

Google Flights

Returning

Fri, May 1, 2026•7 Day Trip

$238 USD

Google Flights

Returning

Sat, May 2, 2026•8 Day Trip

$232 USD

Google Flights

Returning

Sun, May 3, 2026•9 Day Trip

$232 USD

Google Flights

Returning

Mon, May 4, 2026•10 Day Trip

$232 USD

Google Flights

Returning

Tue, May 5, 2026•11 Day Trip

$232 USD

Google Flights

Returning

Wed, May 6, 2026•12 Day Trip

$232 USD

Google Flights

Returning

Thu, May 7, 2026•13 Day Trip

$355 USD

Google Flights

Returning

Fri, May 8, 2026•14 Day Trip

$238 USD

Google Flights