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Find Flight Deals from United States to Chicago O'Hare International

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

Book cheap flights to Chicago O'Hare International

(Round-trip)
Depart: Thu Jan 1 2015 Return: Wed Jan 7 2015 Trip spans 7 days
Spirit Airlines
Spirit Airlines
MSP
1:50p
ORD
3:22p
1h 32m
nonstop
ORD
4:05a
MSP
5:30a
1h 25m
nonstop
Depart: Wed Jan 7 2015 Return: Sat Jan 10 2015 Trip spans 4 days
Spirit Airlines
Spirit Airlines
DEN
1:00a
ORD
3:26a
2h 26m
nonstop
ORD
4:40p
DEN
7:22p
2h 42m
nonstop
Depart: Sat Feb 7 2015 Return: Tue Feb 10 2015 Trip spans 4 days
Spirit Airlines
Spirit Airlines
DFW
1:16a
ORD
3:35a
2h 19m
nonstop
ORD
1:45p
DFW
4:16p
2h 31m
nonstop
Depart: Fri Jan 9 2015 Return: Sat Jan 10 2015 Trip spans 2 days
Spirit Airlines
Spirit Airlines
MCI
11:25a
ORD
12:51p
1h 26m
nonstop
ORD
9:11a
MCI
10:41a
1h 30m
nonstop
Depart: Mon Mar 9 2015 Return: Wed Mar 11 2015 Trip spans 3 days
Frontier
Frontier
IAD
2:55a
ORD
5:00a
2h 05m
nonstop
ORD
8:50a
IAD
10:40a
1h 50m
nonstop
Depart: Tue Feb 24 2015 Return: Wed Feb 25 2015 Trip spans 2 days
Spirit Airlines
Spirit Airlines
LGA
3:30a
ORD
6:05a
2h 35m
nonstop
ORD
12:59p
LGA
3:07p
2h 08m
nonstop
Depart: Tue Mar 31 2015 Return: Tue Apr 7 2015 Trip spans 8 days
Spirit Airlines
Spirit Airlines
MCO
1:35p
ORD
4:37p
3h 02m
nonstop
ORD
6:06a
MCO
8:41a
2h 35m
nonstop
Depart: Fri Jan 2 2015 Return: Mon Feb 2 2015 Trip spans 32 days
Multiple Airlines
Multiple Airlines
CLE
12:20p
ORD
1:45p
1h 25m
nonstop
ORD
11:30a
CLE
12:50p
1h 20m
nonstop
Depart: Tue Dec 30 2014 Return: Tue Jan 13 2015 Trip spans 15 days
Spirit Airlines
Spirit Airlines
ATL
4:26a
ORD
6:25a
1h 59m
nonstop
ORD
5:44a
ATL
7:34a
1h 50m
nonstop
Depart: Sat May 30 2015 Return: Mon Jun 1 2015 Trip spans 3 days
Spirit Airlines
Spirit Airlines
BOS
10:00a
ORD
12:43p
2h 43m
nonstop
ORD
9:38a
BOS
12:04p
2h 26m
nonstop
Depart: Wed May 6 2015 Return: Sat May 9 2015 Trip spans 4 days
Spirit Airlines
Spirit Airlines
PHL
2:05a
ORD
4:23a
2h 18m
nonstop
ORD
4:45p
PHL
6:41p
1h 56m
nonstop
Depart: Tue Apr 28 2015 Return: Mon May 4 2015 Trip spans 7 days
Spirit Airlines
Spirit Airlines
HOU
2:30p
ORD
5:05p
2h 35m
nonstop
ORD
5:25a
HOU
8:06a
2h 41m
nonstop
Depart: Tue Jun 2 2015 Return: Tue Jun 9 2015 Trip spans 8 days
Spirit Airlines
Spirit Airlines
OAK
4:35a
ORD
8:42a
4h 07m
nonstop
ORD
10:35a
OAK
3:12p
4h 37m
nonstop
Depart: Sun Jun 28 2015 Return: Tue Jun 30 2015 Trip spans 3 days
United
United
CMH
1:37p
ORD
3:00p
1h 23m
nonstop
ORD
10:30a
CMH
11:50a
1h 20m
nonstop
Depart: Sun Jun 14 2015 Return: Mon Jun 15 2015 Trip spans 2 days
Delta
Delta
DTW
4:45a
ORD
6:06a
1h 21m
nonstop
ORD
8:00a
DTW
9:21a
1h 21m
nonstop
Depart: Sun Jun 21 2015 Return: Thu Jun 25 2015 Trip spans 5 days
Delta
Delta
EWR
7:00a
ORD
11:14a
4h 14m
1 stop
ORD
9:15a
EWR
1:00p
3h 45m
1 stop
Change your search
Airports
Origin

Kansas City
$87
Detroit
$219
Oakland
$187
Cleveland
$146
Washington
$105
New York City
$137
Minneapolis
$81
Atlanta
$147
Orlando
$141
Columbus
$203
Newark
$232
Denver
$81
Dallas
$81
Philadelphia
$167
Houston
$175
Boston
$157
Destination

Chicago
$81