LAS to STL from $197 in economy

AAAmerican Airlines

DLDelta Air Lines

Round Trip•Economy

LAS

Harry Reid International Airport

Las Vegas, United States

STL

Lambert-Saint Louis International Airport

St. Louis, United States

$451 USD

-56%$197 USD

Verified about 7 hours ago

September 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$283 1$197 2$197 3$299 4$329 5$197 6$468 7$511 8$197 9$197 10$299 11$307 12$197 13$372 14$299 15$197 16$197 17$299 18$338 19$197 20$372 21$299 22$197 23$197 24$299 25$329 26$197 27$372 28$299 29$197 30$197 1$299 2$338 3$292 4$467

Extremely Rare Availability

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

Sunday, September 20th, 2026

5 round-trip options

Returning

Fri, Sep 25, 2026•5 Day Trip

$513 USD

Google Flights

Returning

Sun, Sep 27, 2026•7 Day Trip

$547 USD

Google Flights

Returning

Mon, Sep 28, 2026•8 Day Trip

$474 USD

Google Flights

Returning

Wed, Sep 30, 2026•10 Day Trip

$372 USD

Google Flights

Returning

Sat, Oct 3, 2026•13 Day Trip

$372 USD

Google Flights

Las Vegas (LAS) to St. Louis (STL) flight deal in economy from $197

Harry Reid International Airport

Lambert-Saint Louis International Airport

September 2026

Sunday, September 20th, 2026