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Find Deals on Flights from Chicago to Denver International (CHI - DEN)

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Chicago to Denver International

(Round-trip)
Depart: Tue Aug 25 2015 Return: Tue Sep 1 2015 Trip spans 8 days
Frontier
Frontier
ORD
11:30a
DEN
2:10p
2h 40m
nonstop
DEN
2:00a
ORD
4:20a
2h 20m
nonstop
Depart: Wed Aug 26 2015 Return: Tue Sep 1 2015 Trip spans 7 days
Frontier
Frontier
ORD
11:30a
DEN
2:10p
2h 40m
nonstop
DEN
2:00a
ORD
4:20a
2h 20m
nonstop
Depart: Tue Sep 1 2015 Return: Wed Sep 9 2015 Trip spans 9 days
Frontier
Frontier
ORD
4:50a
DEN
7:25a
2h 35m
nonstop
DEN
2:00a
ORD
4:20a
2h 20m
nonstop
Depart: Wed Sep 9 2015 Return: Sat Sep 12 2015 Trip spans 4 days
Frontier
Frontier
ORD
12:10p
DEN
2:46p
2h 36m
nonstop
DEN
2:00a
ORD
4:20a
2h 20m
nonstop
Depart: Sat Sep 12 2015 Return: Tue Sep 15 2015 Trip spans 4 days
Frontier
Frontier
ORD
12:10p
DEN
2:46p
2h 36m
nonstop
DEN
2:00a
ORD
4:20a
2h 20m
nonstop
Depart: Tue Sep 15 2015 Return: Sat Sep 19 2015 Trip spans 5 days
Frontier
Frontier
ORD
12:10p
DEN
2:46p
2h 36m
nonstop
DEN
2:00a
ORD
4:20a
2h 20m
nonstop
Depart: Sat Sep 19 2015 Return: Tue Sep 22 2015 Trip spans 4 days
Frontier
Frontier
ORD
12:10p
DEN
2:46p
2h 36m
nonstop
DEN
2:00a
ORD
4:20a
2h 20m
nonstop
Depart: Tue Sep 22 2015 Return: Sat Sep 26 2015 Trip spans 5 days
Frontier
Frontier
ORD
4:55a
DEN
7:30a
2h 35m
nonstop
DEN
2:00a
ORD
4:20a
2h 20m
nonstop
Depart: Sat Sep 26 2015 Return: Tue Sep 29 2015 Trip spans 4 days
Frontier
Frontier
ORD
12:10p
DEN
2:46p
2h 36m
nonstop
DEN
2:00a
ORD
4:20a
2h 20m
nonstop
Depart: Tue Sep 29 2015 Return: Sat Oct 3 2015 Trip spans 5 days
Frontier
Frontier
ORD
12:10p
DEN
2:46p
2h 36m
nonstop
DEN
2:00a
ORD
4:20a
2h 20m
nonstop
Depart: Wed Sep 30 2015 Return: Sat Oct 3 2015 Trip spans 4 days
Frontier
Frontier
ORD
4:55a
DEN
7:30a
2h 35m
nonstop
DEN
2:00a
ORD
4:20a
2h 20m
nonstop
Depart: Sat Oct 3 2015 Return: Tue Oct 6 2015 Trip spans 4 days
Frontier
Frontier
ORD
12:10p
DEN
2:46p
2h 36m
nonstop
DEN
2:00a
ORD
4:20a
2h 20m
nonstop
Depart: Sat Oct 10 2015 Return: Wed Oct 14 2015 Trip spans 5 days
Frontier
Frontier
ORD
12:10p
DEN
2:46p
2h 36m
nonstop
DEN
2:00a
ORD
4:20a
2h 20m
nonstop
Depart: Tue Oct 13 2015 Return: Tue Oct 20 2015 Trip spans 8 days
Frontier
Frontier
ORD
4:55a
DEN
7:30a
2h 35m
nonstop
DEN
2:00a
ORD
4:20a
2h 20m
nonstop
Depart: Wed Sep 2 2015 Return: Wed Sep 30 2015 Trip spans 29 days
United
United
ORD
1:30a
DEN
4:07a
2h 37m
nonstop
DEN
10:17a
ORD
12:50p
2h 33m
nonstop
Depart: Mon Aug 31 2015 Return: Tue Sep 1 2015 Trip spans 2 days
American Airlines
American Airlines
ORD
3:20a
DEN
6:01a
2h 41m
nonstop
DEN
10:17a
ORD
12:55p
2h 38m
nonstop
Depart: Fri Aug 28 2015 Return: Tue Sep 1 2015 Trip spans 5 days
US Airways
US Airways
ORD
3:20a
DEN
6:01a
2h 41m
nonstop
DEN
10:17a
ORD
12:55p
2h 38m
nonstop
Depart: Sat Aug 22 2015 Return: Tue Aug 25 2015 Trip spans 4 days
Delta
Delta
MDW
11:20a
DEN
3:37p
4h 17m
1 stop
DEN
2:30a
MDW
8:05a
5h 35m
1 stop
Depart: Wed Aug 5 2015 Return: Tue Aug 11 2015 Trip spans 7 days
Spirit Airlines
Spirit Airlines
ORD
5:55p
DEN
8:28p
2h 33m
nonstop
DEN
2:30a
ORD
4:57a
2h 27m
nonstop
Depart: Thu Dec 17 2015 Return: Mon Dec 21 2015 Trip spans 5 days
Delta
Delta
ORD
4:10a
DEN
8:24a
4h 14m
1 stop
DEN
1:15a
ORD
7:06a
5h 51m
1 stop
Direct flights CHI to DEN on American Airlines
Flight # Depart ORD Arrive DEN Sun Mon Tue Wed Thu Fri Sat Valid Between
1555 7:20 am 9:01 am Jul 2 - Jul 10
1555 7:20 am 9:01 am Jul 11 - Aug 21
2368 10:00 am 11:36 am Jul 6 - Aug 17
2303 1:54 pm 3:36 pm Jul 6 - Aug 17
2516 5:15 pm 7:05 pm Jul 6 - Aug 17
Airports
Origin

Chicago
only $98
only $186
Destination

Denver
$98