St. Louis (STL) to Las Vegas (LAS) flight deal in economy from $197
STLLambert-Saint Louis International Airport
St. Louis, United States
LASHarry Reid International Airport
Las Vegas, United States
$450 USD
-56%$197 USD
Verified about 5 hours agoAugust 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Extremely Rare Availability
3% of dates checked are available within 10% of the lowest price
Friday, August 14th, 2026
3 round-trip options
Returning
Wed, Aug 19, 2026•5 Day Trip
$517 USD
Returning
Sat, Aug 22, 2026•8 Day Trip
$420 USD
Returning
Fri, Aug 28, 2026•14 Day Trip
$506 USD