Earn point on your loyalty program!arrow arc left

Cheap flights from Denver (DEN) to Chicago (CHI)

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 Denver (DEN) to Chicago (CHI)

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

Cheap flights from Denver to Chicago in June , July 2026

16 Jun - 14 Jul $ 169.00
DEN
Denver
Frontier Airlines
DIRECT
CHI
Chicago
CHI
Chicago
Frontier Airlines
DIRECT
DEN
Denver
Pick dates
16 Jun - 09 Jul $ 186.00
DEN
Denver
Frontier Airlines
DIRECT
CHI
Chicago
CHI
Chicago
Frontier Airlines
DIRECT
DEN
Denver
Pick dates
10 Jun - 13 Jul $ 391.00
DEN
Denver
United Airlines
DIRECT
CHI
Chicago
CHI
Chicago
United Airlines
DIRECT
DEN
Denver
Pick dates

Last minute flights from Denver to Chicago

16 Jun - 30 Jun $ 240.00
DEN
Denver
Frontier Airlines
DIRECT
CHI
Chicago
CHI
Chicago
Frontier Airlines
DIRECT
DEN
Denver
Pick dates
16 Jun - 30 Jun $ 268.00
DEN
Denver
Frontier Airlines
DIRECT
CHI
Chicago
CHI
Chicago
Frontier Airlines
1 STOPS
DEN
Denver
Pick dates
16 Jun - 30 Jun $ 367.00
DEN
Denver
United Airlines
DIRECT
CHI
Chicago
CHI
Chicago
United Airlines
DIRECT
DEN
Denver
Pick dates

One-way flights to Chicago from Denver

9:05 PM - 9:05 PM
United Airlines
0 Stops
2h 39m
DEN - CHI
$ 109
Kiwi
Pick dates
5:05 PM - 5:05 PM
Frontier Airlines
0 Stops
2h 38m
DEN - CHI
$ 118
Kiwi
Pick dates
5:05 PM - 5:05 PM
Frontier Airlines
0 Stops
2h 38m
DEN - CHI
$ 150
Kiwi
Pick dates

How to find the cheapest flight from Denver (DEN) to Chicago (CHI)

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 Denver (DEN) to Chicago (CHI)
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 Denver (DEN) to Chicago (CHI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.