Southwest Airlines flights from STL to DEN
Find comprehensive Southwest Airlines flight information, schedules, and booking details for direct flights from STL to DEN. Southwest Airlines operates 7-15 flights daily flights on this route.• Flight Duration: 2h 10m - 2h 39m (average flight time)• Distance: 772 miles (1242 km) (air miles between airports)• Daily Flights: 7-15 flights (scheduled departures per day)
STL
DEN
FLIGHT TIME
2h 10m - 2h 39m
FLIGHT DISTANCE
772 miles (1242 km)
2h 20m - 2h 25m
05:35
21:45
772 miles (1242 km)
March
1 (Show)
77
Southwest Airlines Flight Schedule from STL to DEN
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
WN2254 |  Southwest Airlines | 05:35 | 07:00:00 | Boeing 737MAX 8 Passenger |
WN2647 | Southwest Airlines | 08:30 | 09:50:00 | Boeing 737-700 (winglets) Passenger/BBJ1 |
WN3664 | Southwest Airlines | 11:00 | 12:20:00 | Boeing 737MAX 8 Passenger |
WN3696 | Southwest Airlines | 13:40 | 15:00:00 | Boeing 737MAX 8 Passenger |
WN454 | Southwest Airlines | 17:15 | 18:35:00 | Boeing 737-800 (winglets) Passenger/BBJ2 |
WN4127 | Southwest Airlines | 18:45 | 20:05:00 | Boeing 737-800 (winglets) Passenger/BBJ2 |
WN2198 | Southwest Airlines | 21:45 | 23:05:00 | 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 2h 10m - 2h 39m.
Pricing patterns: March typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 5:00, 8:00, 11:00, offering more flight options and potentially better connections.
STL - DEN flight price statistics
$175
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.
$61
Jan$48
Feb$39
Mar$93
Apr$39
May$180
Jun$190
Jul$241
Aug$230
Sep$326
Oct$326
Nov$326
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 DEN?
Southwest Airlines operates 7 flights from STL to DEN.
What city does DEN airport serve?
DEN airport serves Denver.
How long is the Southwest Airlines flight from STL to DEN?
The flight duration is approximately 2h 10m - 2h 39m.
What is the distance from STL to DEN?
The distance is 772 miles (1242 km).
What aircraft does Southwest Airlines use on this route?
Southwest Airlines uses Boeing 737MAX 8 Passenger, Boeing 737-700 (winglets) Passenger/BBJ1, Boeing 737-800 (winglets) Passenger/BBJ2 on this route.
Which other airlines operate on this route?
2 other airlines operate on this route: United Airlines, Frontier Airlines.
What are the earliest and latest Southwest Airlines flight departure times?
The earliest Southwest Airlines flight departs at 05:35 and the latest departs at 21:45.
What is the cheapest month to fly Southwest Airlines from STL to DEN?
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 DEN?
The average price for a round-trip Southwest Airlines flight on this route is approximately $175. Prices can vary based on booking time and demand.
How many Southwest Airlines flights operate per week on this route?
Southwest Airlines operates approximately 77 flights per week from STL to DEN.