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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
6:07a
DEN
8:49a
2h 42m
nonstop
Depart: Mon Jan 19 2015 Return: Tue Jan 20 2015 Trip spans 2 days
Spirit Airlines
Spirit Airlines
DFW
1:16a
ORD
3:35a
2h 19m
nonstop
ORD
4:15a
DFW
6:46a
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: Sat Feb 28 2015 Return: Fri Mar 6 2015 Trip spans 7 days
Frontier
Frontier
IAD
3:30a
ORD
5:35a
2h 05m
nonstop
ORD
7:50a
IAD
9:40a
1h 50m
nonstop
Depart: Tue Apr 14 2015 Return: Tue Apr 21 2015 Trip spans 8 days
Spirit Airlines
Spirit Airlines
MCO
1:35p
ORD
4:37p
3h 02m
nonstop
ORD
6:52a
MCO
9:27a
2h 35m
nonstop
Depart: Sun Mar 8 2015 Return: Tue Mar 10 2015 Trip spans 3 days
Frontier
Frontier
ATL
6:00a
ORD
8:00a
2h 00m
nonstop
ORD
2:25a
ATL
4:15a
1h 50m
nonstop
Depart: Tue May 5 2015 Return: Fri May 8 2015 Trip spans 4 days
Spirit Airlines
Spirit Airlines
BOS
10:00a
ORD
12:43p
2h 43m
nonstop
ORD
9:38a
BOS
12:04p
2h 26m
nonstop
Depart: Tue May 19 2015 Return: Wed May 27 2015 Trip spans 9 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 Jun 9 2015 Return: Tue Jun 16 2015 Trip spans 8 days
Delta
Delta
MIA
7:40a
ORD
12:39p
4h 59m
1 stop
ORD
10:00a
MIA
2:29p
4h 29m
1 stop
Depart: Sun Jun 7 2015 Return: Wed Jul 8 2015 Trip spans 32 days
United
United
CLE
6:25a
ORD
7:58a
1h 33m
nonstop
ORD
1:30p
CLE
2:48p
1h 18m
nonstop
Depart: Wed Jun 17 2015 Return: Tue Jun 23 2015 Trip spans 7 days
American Airlines
American Airlines
TPA
1:34p
ORD
4:30p
2h 56m
nonstop
ORD
4:45a
TPA
7:27a
2h 42m
nonstop
Depart: Tue Apr 28 2015 Return: Fri May 1 2015 Trip spans 4 days
Spirit Airlines
Spirit Airlines
BWI
4:55p
ORD
7:02p
2h 07m
nonstop
ORD
5:04p
BWI
6:59p
1h 55m
nonstop
Depart: Sun May 31 2015 Return: Tue Jun 9 2015 Trip spans 10 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 Apr 26 2015 Return: Mon Apr 27 2015 Trip spans 2 days
Spirit Airlines
Spirit Airlines
SAN
9:50a
ORD
1:40p
3h 50m
nonstop
ORD
6:44a
SAN
10:59a
4h 15m
nonstop
Depart: Mon Jun 29 2015 Return: Wed Jul 29 2015 Trip spans 31 days
JetBlue Airways
JetBlue Airways
DCA
2:00a
ORD
6:46a
4h 46m
1 stop
ORD
3:00a
DCA
7:44a
4h 44m
1 stop
Change your search
Airports
Origin

Kansas City
$87
Detroit
$219
Oakland
$197
Cleveland
$187
Washington
only $105
only $228
Miami
$184
San Diego
$227
Baltimore
$197
Minneapolis
$81
Atlanta
$148
Orlando
$141
Columbus
$203
Denver
$81
Dallas
$81
Tampa
$194
Philadelphia
$157
Boston
$157
Destination

Chicago
$81