St Louis to Las Vegas
STLLAS
Fly from St Louis to Las Vegas starting at USD 111 with Frontier Airlines.
Best fare available on Nov 14, 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
Sep
from USD 228
Oct
No flights
Nov
from USD 111
Dec
No flights
Jan
No flights
Feb
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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