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
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Extremely Rare Availability
3% of dates checked are available within 10% of the lowest price
Sunday, August 16th, 2026
3 round-trip options
Returning
Fri, Aug 21, 2026•5 Day Trip
$508 USD
Returning
Mon, Aug 24, 2026•8 Day Trip
$506 USD
Returning
Sun, Aug 30, 2026•14 Day Trip
$506 USD