Southwest Airlines flights from COS to DEN
Find comprehensive Southwest Airlines flight information, schedules, and booking details for direct flights from COS to DEN. Southwest Airlines operates 10-15 flights daily flights on this route.• Flight Duration: 0h 40m - 1h 14m (average flight time)• Distance: 73 miles (117 km) (air miles between airports)• Daily Flights: 10-15 flights (scheduled departures per day)
COS
DEN
FLIGHT TIME
0h 40m - 1h 14m
FLIGHT DISTANCE
73 miles (117 km)
0h 55m - 1h 0m
06:00
18:25
73 miles (117 km)
September
1 (Show)
98
Southwest Airlines Flight Schedule from COS to DEN
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
WN1187 |  Southwest Airlines | 06:00 | 07:00:00 | Boeing 737-700 (winglets) Passenger/BBJ1 |
WN2072 | Southwest Airlines | 11:05 | 12:00:00 | Boeing 737MAX 8 Passenger |
WN2993 | Southwest Airlines | 18:25 | 19:20:00 | Boeing 737-700 (winglets) Passenger/BBJ1 |
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 0h 40m - 1h 14m.
Pricing patterns: September typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 6:00, 11:00, 18:00, offering more flight options and potentially better connections.
COS - DEN flight price statistics
$291
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.
$390
Jan$438
Feb$354
Mar$299
Apr$353
May$261
Jun$240
Jul$304
Aug$178
Sep$240
Oct$240
Nov$200
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 COS to DEN?
Southwest Airlines operates 3 flights from COS to DEN.
What city does DEN airport serve?
DEN airport serves Denver.
How long is the Southwest Airlines flight from COS to DEN?
The flight duration is approximately 0h 40m - 1h 14m.
What is the distance from COS to DEN?
The distance is 73 miles (117 km).
What aircraft does Southwest Airlines use on this route?
Southwest Airlines uses Boeing 737-700 (winglets) Passenger/BBJ1, Boeing 737MAX 8 Passenger on this route.
Which other airlines operate on this route?
1 other airline operates on this route: United 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 18:25.
What is the cheapest month to fly Southwest Airlines from COS to DEN?
September is typically the cheapest month to fly Southwest Airlines on this route.
What is the average price for a Southwest Airlines flight from COS to DEN?
The average price for a round-trip Southwest Airlines flight on this route is approximately $291. Prices can vary based on booking time and demand.
How many Southwest Airlines flights operate per week on this route?
Southwest Airlines operates approximately 98 flights per week from COS to DEN.