St Louis to Las Vegas
STLLAS
Fly from St Louis to Las Vegas starting at USD 128 with Frontier Airlines.
Best fare available on Jul 1, 2026.
Limited seats. Better plans. Book before it's gone.
St Louis to Las Vegas cheapest flights this week
St Louis to Las Vegas monthly flight fare trend
Jun
from USD 196
Jul
from USD 128
Aug
No flights
Sep
No flights
Oct
No flights
Nov
No flights
Airport Details
Origin
St Louis
St. Louis Lambert International Airport (STL)
St Louis, STL
Zone
Chicago
Elev
618 ft
Destination
Las Vegas
Harry Reid International Airport (LAS)
Las Vegas, LAS
Zone
Los Angeles
Elev
2181 ft
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