ATL to STL from $117 in economy – flightdeals.net

Home Premium Fare Deals About

Southwest Airlines

WNSouthwest Airlines

Round Trip•Economy

Hartsfield–Jackson Atlanta Inte

Atlanta, United States

Lambert-Saint Louis International Airport

St. Louis, United States

$334 USD

-65%$117 USD

Verified 13 days ago

September 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$244 1$234 2$234 3$351 4$351 5$351 6$361 7$351 8$351 9$351 10$351 11$351 12$351 13$361 14$351 15$351 16$351 17$351 18$351 19$351 20$361 21$351 22$351 23$351 24$351 25$351 26$351 27$361 28$351 29$351 30$351 1$351 2$351 3$351 4$361

Extremely Rare Availability

3% of dates checked are available within 10% of the lowest price

Monday, September 21st, 2026

3 round-trip options

Returning

Sun, Sep 27, 2026•6 Day Trip

$361 USD

Returning

Fri, Oct 2, 2026•11 Day Trip

$351 USD

Returning

Sun, Oct 4, 2026•13 Day Trip

$361 USD