Saint Louis (STL) to Las Vegas (LAS) flights
2 airlines fly nonstop from Saint Louis (STL) to Las Vegas (LAS): Frontier Airlines and Southwest Airlines. The two airports are 1,368 miles (2,201 km) apart. There are also 34 ways to fly it with one stop, through Kansas City, Denver and Omaha and more.
Airlines flying nonstop from STL to LAS
- Frontier AirlinesNot in an allianceWho books it
- Southwest AirlinesNot in an allianceWho books it
STL to LAS with one stop
34 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Kansas City (MCI)Southwest Airlines the whole way
- Via Denver (DEN)Frontier Airlines, United Airlines and 1 more the whole way
- Via Omaha (OMA)Southwest Airlines the whole way
- Via Phoenix (PHX)American Airlines and Southwest Airlines the whole way
- Via Salt Lake City (SLC)Delta Air Lines the whole way
- Via Dallas (DFW)American Airlines and Frontier Airlines the whole way
- Via Dallas (DAL)Southwest Airlines the whole way
- Via Minneapolis (MSP)Delta Air Lines and Southwest Airlines the whole way
+1 - Via Chicago (ORD)American Airlines and United Airlines the whole way
- Via Chicago (MDW)Southwest Airlines the whole way
- Via Burbank (BUR)Southwest Airlines the whole way
- Via Austin (AUS)Southwest Airlines the whole way+1
- Via San Diego (SAN)Southwest Airlines the whole way+1
- Via Los Angeles (LAX)American Airlines and Southwest Airlines the whole way+3
- Via Milwaukee (MKE)Southwest Airlines the whole way
STL to LAS: common questions
Which airlines fly nonstop from STL to LAS?
Frontier Airlines and Southwest Airlines fly nonstop from Saint Louis (STL) to Las Vegas (LAS).
How far is Saint Louis from Las Vegas by plane?
Saint Louis (STL) and Las Vegas (LAS) are 1,368 miles (2,201 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
How many miles does STL to LAS cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for STL to LAS with taxes and fees.
Where can I connect between Saint Louis and Las Vegas?
The most direct connections are through Kansas City (MCI), Denver (DEN), Omaha (OMA), Phoenix (PHX) and Salt Lake City (SLC). On 34 of them the same airline flies both flights, for example Southwest Airlines through Kansas City.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.