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

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

How to find the cheapest flight from Chicago (CHI) to Denver (DEN)
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How to find the cheapest flight from Chicago (CHI) to Denver (DEN)
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How to find the cheapest flight from Chicago (CHI) to Denver (DEN)
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Cheap flights from Chicago to Denver in November , December 2025

28 Nov - 15 Dec $ 216.00
CHI
Chicago
Frontier Airlines
DIRECT
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
CHI
Chicago
Pick dates
28 Nov - 05 Dec $ 231.00
CHI
Chicago
Frontier Airlines
1 STOPS
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
CHI
Chicago
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28 Nov - 01 Dec $ 350.00
CHI
Chicago
Frontier Airlines
DIRECT
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
CHI
Chicago
Pick dates

Last minute flights from Chicago to Denver

28 Nov - 30 Nov $ 477.00
CHI
Chicago
Frontier Airlines
1 STOPS
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
CHI
Chicago
Pick dates
28 Nov - 30 Nov $ 505.00
CHI
Chicago
Frontier Airlines
DIRECT
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
CHI
Chicago
Pick dates
30 Nov - 30 Nov $ 551.00
CHI
Chicago
United Airlines
DIRECT
DEN
Denver
DEN
Denver
United Airlines
DIRECT
CHI
Chicago
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One-way flights to Denver from Chicago

6:15 PM - 6:00 AM
Frontier Airlines
1 Stops
15h 4m
CHI - DEN
$ 182
Kiwi
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12:12 PM - 12:12 PM
Frontier Airlines
0 Stops
2h 48m
CHI - DEN
$ 185
Kiwi
Pick dates
12:15 AM - 12:15 AM
United Airlines
0 Stops
2h 44m
CHI - DEN
$ 276
Kiwi
Pick dates

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

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