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: Tue Jan 20 2015 Return: Wed Jan 21 2015 Trip spans 2 days
Frontier
Frontier
ATL
5:05a
ORD
7:05a
2h 00m
nonstop
ORD
2:30a
ATL
4:20a
1h 50m
nonstop
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
4:05a
MSP
5:30a
1h 25m
nonstop
Depart: Wed Jan 7 2015 Return: Thu Jan 8 2015 Trip spans 2 days
Spirit Airlines
Spirit Airlines
DEN
1:00a
ORD
3:26a
2h 26m
nonstop
ORD
4:40p
DEN
7:22p
2h 42m
nonstop
Depart: Tue Jan 6 2015 Return: Thu Jan 8 2015 Trip spans 3 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 Feb 23 2015 Return: Wed Feb 25 2015 Trip spans 3 days
Frontier
Frontier
IAD
1:55a
ORD
4:00a
2h 05m
nonstop
ORD
7:50a
IAD
9:40a
1h 50m
nonstop
Depart: Tue May 12 2015 Return: Tue May 19 2015 Trip spans 8 days
Spirit Airlines
Spirit Airlines
MCO
1:16p
ORD
4:12p
2h 56m
nonstop
ORD
6:52a
MCO
9:27a
2h 35m
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 24 2015 Return: Tue Jun 30 2015 Trip spans 7 days
United
United
TPA
2:05a
ORD
5:02a
2h 57m
nonstop
ORD
10:15a
TPA
12:54p
2h 39m
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 31 2015 Return: Mon Jun 1 2015 Trip spans 2 days
United
United
CLE
1:30p
ORD
2:53p
1h 23m
nonstop
ORD
4:30p
CLE
5:48p
1h 18m
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
$179
Washington
$105
West Palm Beach
$169
Minneapolis
$81
Atlanta
$78
Orlando
$141
Columbus
$193
Denver
$81
Dallas
$177
Tampa
$173
Philadelphia
$167
Houston
$175
Boston
$161
Destination

Chicago
$78