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

February 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

26$225 27$225 28$225 29$225 30$225 31$225 1$400 2$348 3$225 4$225 5$225 6$225 7$225 8$400 9$232 10$225 11$225 12$225 13$225 14$225 15$348 16$225 17$232 18$225 19$225 20$225 21$250 22$348 23$225 24$225 25$218 26$225 27$225 28$290 1

Fair Availability

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

Sunday, February 22nd, 2026

10 round-trip options

Returning

Fri, Feb 27, 2026•5 Day Trip

$413 USD

Google Flights

Returning

Sat, Feb 28, 2026•6 Day Trip

$413 USD

Google Flights

Returning

Sun, Mar 1, 2026•7 Day Trip

$348 USD

Google Flights

Returning

Mon, Mar 2, 2026•8 Day Trip

$348 USD

Google Flights

Returning

Tue, Mar 3, 2026•9 Day Trip

$348 USD

Google Flights

Returning

Wed, Mar 4, 2026•10 Day Trip

$348 USD

Google Flights

Returning

Thu, Mar 5, 2026•11 Day Trip

$413 USD

Google Flights

Returning

Fri, Mar 6, 2026•12 Day Trip

$632 USD

Google Flights

Returning

Sat, Mar 7, 2026•13 Day Trip

$465 USD

Google Flights

Returning

Sun, Mar 8, 2026•14 Day Trip

$413 USD

Google Flights