Earn point on your loyalty program!arrow arc left

Cheap flights from Colorado Springs (COS) to Denver (DEN)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Colorado Springs (COS) to Denver (DEN)

How to find the cheapest flight from Colorado Springs (COS) to Denver (DEN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Colorado Springs (COS) to Denver (DEN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Colorado Springs (COS) to Denver (DEN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Colorado Springs to Denver in December 2025 , January 2026

30 Dec - 05 Jan $ 422.00
COS
Colorado Springs
United Airlines
DIRECT
DEN
Denver
DEN
Denver
United Airlines
DIRECT
COS
Colorado Springs
Pick dates
30 Dec - 07 Jan $ 422.00
COS
Colorado Springs
United Airlines
DIRECT
DEN
Denver
DEN
Denver
United Airlines
DIRECT
COS
Colorado Springs
Pick dates
30 Dec - 06 Jan $ 422.00
COS
Colorado Springs
United Airlines
DIRECT
DEN
Denver
DEN
Denver
United Airlines
DIRECT
COS
Colorado Springs
Pick dates

Last minute flights from Colorado Springs to Denver

29 Dec - 02 Jan $ 634.00
COS
Colorado Springs
Allegiant Air
1 STOPS
DEN
Denver
DEN
Denver
Allegiant Air
3 STOPS
COS
Colorado Springs
Pick dates
29 Dec - 02 Jan $ 639.00
COS
Colorado Springs
Allegiant Air
1 STOPS
DEN
Denver
DEN
Denver
Allegiant Air
3 STOPS
COS
Colorado Springs
Pick dates
22 Dec - 02 Jan $ 650.00
COS
Colorado Springs
Allegiant Air
1 STOPS
DEN
Denver
DEN
Denver
Allegiant Air
3 STOPS
COS
Colorado Springs
Pick dates

One-way flights to Denver from Colorado Springs

1:48 PM - 1:48 PM
United Airlines
0 Stops
1h 7m
COS - DEN
$ 310
Kiwi
Pick dates
5:10 PM - 5:10 PM
United Airlines
0 Stops
1h 5m
COS - DEN
$ 311
Kiwi
Pick dates
3:33 PM - 3:33 PM
United Airlines
0 Stops
1h
COS - DEN
$ 690
Kiwi
Pick dates

How to find the cheapest flight from Colorado Springs (COS) to Denver (DEN)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Colorado Springs (COS) to Denver (DEN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Colorado Springs (COS) to Denver (DEN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.