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

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Denver (DEN) to Chicago (CHI)

How to find the cheapest flight from Denver (DEN) to Chicago (CHI)
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How to find the cheapest flight from Denver (DEN) to Chicago (CHI)
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How to find the cheapest flight from Denver (DEN) to Chicago (CHI)
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Cheap flights from Denver to Chicago in May , June 2026

30 May - 20 Jun $ 140.00
DEN
Denver
Frontier Airlines
DIRECT
CHI
Chicago
CHI
Chicago
Frontier Airlines
DIRECT
DEN
Denver
Pick dates
19 May - 09 Jun $ 184.00
DEN
Denver
Frontier Airlines
DIRECT
CHI
Chicago
CHI
Chicago
Frontier Airlines
1 STOPS
DEN
Denver
Pick dates
17 May - 16 Jun $ 453.00
DEN
Denver
United Airlines
DIRECT
CHI
Chicago
CHI
Chicago
United Airlines
DIRECT
DEN
Denver
Pick dates

Last minute flights from Denver to Chicago

30 May - 31 May $ 220.00
DEN
Denver
Frontier Airlines
DIRECT
CHI
Chicago
CHI
Chicago
Frontier Airlines
DIRECT
DEN
Denver
Pick dates
19 May - 31 May $ 228.00
DEN
Denver
Frontier Airlines
DIRECT
CHI
Chicago
CHI
Chicago
Frontier Airlines
DIRECT
DEN
Denver
Pick dates
24 May - 31 May $ 424.00
DEN
Denver
United Airlines
DIRECT
CHI
Chicago
CHI
Chicago
United Airlines
DIRECT
DEN
Denver
Pick dates

One-way flights to Chicago from Denver

4:54 PM - 4:54 PM
Frontier Airlines
0 Stops
2h 38m
DEN - CHI
$ 81
Kiwi
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4:54 PM - 4:54 PM
Frontier Airlines
0 Stops
2h 38m
DEN - CHI
$ 89
Kiwi
Pick dates
8:20 PM - 8:20 PM
United Airlines
0 Stops
2h 36m
DEN - CHI
$ 294
Kiwi
Pick dates

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

Related info for your journey
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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.