Browse Origins:
  • United States:
Browse Destinations:

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: Wed Dec 24 2014 Return: Thu Dec 25 2014 Trip spans 2 days
Spirit Airlines
Spirit Airlines
MSP
1:16a
ORD
2:45a
1h 29m
nonstop
ORD
2:48p
MSP
4:14p
1h 26m
nonstop
Depart: Wed Jan 7 2015 Return: Mon Jan 12 2015 Trip spans 6 days
Spirit Airlines
Spirit Airlines
DEN
1:00a
ORD
3:26a
2h 26m
nonstop
ORD
4:40p
DEN
7:22p
2h 42m
nonstop
Depart: Wed Jan 21 2015 Return: Fri Jan 23 2015 Trip spans 3 days
Frontier
Frontier
IAD
3:20a
ORD
5:25a
2h 05m
nonstop
ORD
7:50a
IAD
9:40a
1h 50m
nonstop
Depart: Wed Dec 31 2014 Return: Thu Jan 1 2015 Trip spans 2 days
Spirit Airlines
Spirit Airlines
MCI
11:25a
ORD
12:51p
1h 26m
nonstop
ORD
9:12a
MCI
10:42a
1h 30m
nonstop
Depart: Tue Jan 13 2015 Return: Sat Feb 7 2015 Trip spans 26 days
United
United
MCO
12:01p
ORD
3:04p
3h 03m
nonstop
ORD
1:00a
MCO
3:43a
2h 43m
nonstop
Depart: Mon Jan 26 2015 Return: Sat Jan 31 2015 Trip spans 6 days
Frontier
Frontier
SLC
1:50p
ORD
4:55p
3h 05m
nonstop
ORD
10:40a
SLC
2:05p
3h 25m
nonstop
Depart: Fri Feb 6 2015 Return: Sun Feb 8 2015 Trip spans 3 days
Spirit Airlines
Spirit Airlines
TPA
9:40a
ORD
12:31p
2h 51m
nonstop
ORD
1:50a
TPA
4:33a
2h 43m
nonstop
Depart: Sun Jan 11 2015 Return: Wed Jan 14 2015 Trip spans 4 days
Frontier
Frontier
ATL
5:05a
ORD
7:05a
2h 00m
nonstop
ORD
2:30a
ATL
4:20a
1h 50m
nonstop
Depart: Tue Jun 30 2015 Return: Tue Jul 14 2015 Trip spans 15 days
American Airlines
American Airlines
BOS
2:00a
ORD
4:51a
2h 51m
nonstop
ORD
3:10a
BOS
5:31a
2h 21m
nonstop
Depart: Tue May 26 2015 Return: Sat May 30 2015 Trip spans 5 days
Spirit Airlines
Spirit Airlines
PHL
2:05a
ORD
4:23a
2h 18m
nonstop
ORD
4:45p
PHL
6:41p
1h 56m
nonstop
Depart: Sun Apr 19 2015 Return: Thu Apr 23 2015 Trip spans 5 days
American Airlines
American Airlines
PBI
1:00p
ORD
4:09p
3h 09m
nonstop
ORD
8:00a
PBI
10:50a
2h 50m
nonstop
Depart: Wed Jun 3 2015 Return: Thu Jun 4 2015 Trip spans 2 days
United
United
CLE
4:55a
ORD
6:24a
1h 29m
nonstop
ORD
3:30a
CLE
4:48a
1h 18m
nonstop
Depart: Sat May 9 2015 Return: Wed May 13 2015 Trip spans 5 days
Spirit Airlines
Spirit Airlines
IAH
2:30p
ORD
5:05p
2h 35m
nonstop
ORD
3:00p
IAH
5:44p
2h 44m
nonstop
Depart: Sun May 10 2015 Return: Sat May 16 2015 Trip spans 7 days
Spirit Airlines
Spirit Airlines
DFW
2:05a
ORD
4:28a
2h 23m
nonstop
ORD
5:20a
DFW
7:44a
2h 24m
nonstop
Depart: Sun May 17 2015 Return: Mon May 25 2015 Trip spans 9 days
United
United
CMH
1:37p
ORD
3:00p
1h 23m
nonstop
ORD
1:30p
CMH
2:46p
1h 16m
nonstop
Change your search
Airports
Origin

Kansas City
$87
Cleveland
$171
Washington
$82
West Palm Beach
$169
Minneapolis
$81
Atlanta
$98
Orlando
$87
Columbus
$193
Salt Lake City
$88
Denver
$81
Dallas
$177
Tampa
$97
Philadelphia
$167
Houston
$175
Boston
$161
Destination

Chicago
$81