Southwest Airlines flights from STL to LAX
Find comprehensive Southwest Airlines flight information, schedules, and booking details for direct flights from STL to LAX. Southwest Airlines operates 2-7 flights daily flights on this route.• Flight Duration: 3h 48m - 4h 26m (average flight time)• Distance: 1597 miles (2570 km) (air miles between airports)• Daily Flights: 2-7 flights (scheduled departures per day)
STL
LAX
FLIGHT TIME
3h 48m - 4h 26m
FLIGHT DISTANCE
1597 miles (2570 km)
4h 5m - 4h 10m
06:00
20:30
1597 miles (2570 km)
September
1 (Show)
22
Southwest Airlines Flight Schedule from STL to LAX
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
WN1315 |  Southwest Airlines | 06:00 | 08:10:00 | Boeing 737-800 (winglets) Passenger/BBJ2 |
WN2134 | Southwest Airlines | 14:40 | 16:45:00 | Boeing 737MAX 8 Passenger |
WN3791 | Southwest Airlines | 20:30 | 22:40:00 | Boeing 737MAX 8 Passenger |
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 48m - 4h 26m.
Pricing patterns: September typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 6:00, 14:00, 20:00, offering more flight options and potentially better connections.
STL - LAX flight price statistics
$416
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.
$422
Jan$442
Feb$282
Mar$350
Apr$400
May$582
Jun$643
Jul$390
Aug$218
Sep$218
Oct$522
Nov$521
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 LAX?
Southwest Airlines operates 3 flights from STL to LAX.
What city does LAX airport serve?
LAX airport serves Los Angeles.
How long is the Southwest Airlines flight from STL to LAX?
The flight duration is approximately 3h 48m - 4h 26m.
What is the distance from STL to LAX?
The distance is 1597 miles (2570 km).
What aircraft does Southwest Airlines use on this route?
Southwest Airlines uses Boeing 737-800 (winglets) Passenger/BBJ2, Boeing 737MAX 8 Passenger on this route.
Which other airlines operate on this route?
1 other airline operates on this route: American Airlines.
What are the earliest and latest Southwest Airlines flight departure times?
The earliest Southwest Airlines flight departs at 06:00 and the latest departs at 20:30.
What is the cheapest month to fly Southwest Airlines from STL to LAX?
September 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 LAX?
The average price for a round-trip Southwest Airlines flight on this route is approximately $416. Prices can vary based on booking time and demand.
How many Southwest Airlines flights operate per week on this route?
Southwest Airlines operates approximately 22 flights per week from STL to LAX.