STL to LAS from $197 in economy – flightdeals.net

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American Airlines

AAAmerican Airlines

Delta Air Lines

DLDelta Air Lines

Round Trip•Economy

Lambert-Saint Louis International Airport

St. Louis, United States

Harry Reid International Airport

Las Vegas, United States

$450 USD

-56%$197 USD

Verified about 7 hours ago

September 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$283 1$409 2$197 3$299 4$440 5$314 6$307 7$474 8$299 9$197 10$299 11$440 12$329 13$372 14$474 15$299 16$197 17$299 18$440 19$329 20$372 21$474 22$299 23$197 24$299 25$440 26$329 27$372 28$431 29$299 30$197 1$327 2$440 3$358 4$467

Extremely Rare Availability

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

Sunday, September 20th, 2026

1 round-trip options

Returning

Sat, Sep 26, 2026•6 Day Trip

$372 USD