Southwest Airlines flights from STL to LAS
Find comprehensive Southwest Airlines flight information, schedules, and booking details for direct flights from STL to LAS. Southwest Airlines operates 4-12 flights daily flights on this route.• Flight Duration: 3h 25m - 3h 59m (average flight time)• Distance: 1375 miles (2212 km) (air miles between airports)• Daily Flights: 4-12 flights (scheduled departures per day)
STL
LAS
FLIGHT TIME
3h 25m - 3h 59m
FLIGHT DISTANCE
1375 miles (2212 km)
3h 35m - 3h 40m
05:05
22:00
1375 miles (2212 km)
March
1 (Show)
45
Southwest Airlines Flight Schedule from STL to LAS
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
WN2041 |  Southwest Airlines | 05:05 | 06:45:00 | Boeing 737-800 (winglets) Passenger/BBJ2 |
WN2122 | Southwest Airlines | 07:25 | 09:05:00 | Boeing 737-800 (winglets) Passenger/BBJ2 |
WN4849 | Southwest Airlines | 11:00 | 12:35:00 | Boeing 737-800 (winglets) Passenger/BBJ2 |
WN4205 | Southwest Airlines | 16:10 | 17:45:00 | Boeing 737-800 (winglets) Passenger/BBJ2 |
WN4433 | Southwest Airlines | 19:05 | 20:40:00 | Boeing 737-800 (winglets) Passenger/BBJ2 |
WN2804 | Southwest Airlines | 22:00 | 23:35:00 | Boeing 737-800 (winglets) Passenger/BBJ2 |
Southwest Airlines Monthly Flight Calendar
December 2025
Route Insights
Duration variability: Flight duration on this route can vary based on aircraft type, wind conditions, and airline scheduling. Average duration is 3h 25m - 3h 59m.
Pricing patterns: March typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 5:00, 7:00, 11:00, offering more flight options and potentially better connections.
STL - LAS flight price statistics
$208
ApproximateThe numbers are average prices found based on user searches for direct flights between the airports. It's calculated from the cheapest prices found per month for a round-trip with 1 adult and can vary depending on the amount of data we have for this particular route.
$238
Jan$118
Feb$88
Mar$99
Apr$117
May$166
Jun$162
Jul$98
Aug$110
Sep$134
Oct$720
Nov$440
DecSouthwest Airlines Terminal Information
Terminal information for Southwest Airlines on this route is currently being updated. Please check back soon or contact the airports directly for terminal details.
Frequently Asked Questions about Southwest Airlines Flights
How many Southwest Airlines flights operate from STL to LAS?
Southwest Airlines operates 6 flights from STL to LAS.
What city does LAS airport serve?
LAS airport serves Las Vegas.
How long is the Southwest Airlines flight from STL to LAS?
The flight duration is approximately 3h 25m - 3h 59m.
What is the distance from STL to LAS?
The distance is 1375 miles (2212 km).
What aircraft does Southwest Airlines use on this route?
Southwest Airlines uses Boeing 737-800 (winglets) Passenger/BBJ2 on this route.
Which other airlines operate on this route?
1 other airline operates on this route: Frontier Airlines.
What are the earliest and latest Southwest Airlines flight departure times?
The earliest Southwest Airlines flight departs at 05:05 and the latest departs at 22:00.
What is the cheapest month to fly Southwest Airlines from STL to LAS?
March is typically the cheapest month to fly Southwest Airlines on this route.
What is the average price for a Southwest Airlines flight from STL to LAS?
The average price for a round-trip Southwest Airlines flight on this route is approximately $208. Prices can vary based on booking time and demand.
How many Southwest Airlines flights operate per week on this route?
Southwest Airlines operates approximately 45 flights per week from STL to LAS.