Browse Origins:
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 May 26 2015 Return: Thu May 28 2015 Trip spans 3 days
Spirit Airlines
Spirit Airlines
MSP
ORD
1h 26m
nonstop
ORD
MSP
1h 24m
nonstop
Depart: Sat May 30 2015 Return: Sun May 31 2015 Trip spans 2 days
Spirit Airlines
Spirit Airlines
MSY
ORD
2h 20m
nonstop
ORD
MSY
2h 22m
nonstop
Depart: Wed Jun 17 2015 Return: Tue Jun 23 2015 Trip spans 7 days
Frontier
Frontier
TTN
ORD
2h 10m
nonstop
ORD
TTN
2h 00m
nonstop
Depart: Tue Jun 9 2015 Return: Wed Jun 10 2015 Trip spans 2 days
Spirit Airlines
Spirit Airlines
FLL
ORD
3h 15m
nonstop
ORD
FLL
3h 00m
nonstop
Depart: Wed Jun 24 2015 Return: Sat Jul 4 2015 Trip spans 11 days
American Airlines
American Airlines
RDU
ORD
2h 16m
nonstop
ORD
RDU
2h 00m
nonstop
Depart: Wed Jun 10 2015 Return: Wed Jun 17 2015 Trip spans 8 days
American Airlines
American Airlines
HOU
ORD
2h 52m
nonstop
ORD
HOU
2h 49m
nonstop
Depart: Wed Jun 3 2015 Return: Tue Jun 9 2015 Trip spans 7 days
Frontier
Frontier
MIA
ORD
3h 10m
nonstop
ORD
MIA
3h 10m
nonstop
Depart: Tue Sep 1 2015 Return: Wed Sep 2 2015 Trip spans 2 days
Frontier
Frontier
PHL
ORD
2h 20m
nonstop
ORD
PHL
1h 55m
nonstop
Depart: Wed Aug 12 2015 Return: Tue Aug 18 2015 Trip spans 7 days
Frontier
Frontier
DEN
ORD
2h 20m
nonstop
ORD
DEN
2h 40m
nonstop
Depart: Thu Aug 20 2015 Return: Sun Aug 23 2015 Trip spans 4 days
Frontier
Frontier
IAD
ORD
2h 00m
nonstop
ORD
IAD
1h 45m
nonstop
Depart: Fri Jun 12 2015 Return: Sat Jun 20 2015 Trip spans 9 days
American Airlines
American Airlines
TPA
ORD
2h 53m
nonstop
ORD
TPA
2h 45m
nonstop
Depart: Wed Jul 22 2015 Return: Wed Jul 29 2015 Trip spans 8 days
United
United
IAH
ORD
2h 49m
nonstop
ORD
IAH
2h 42m
nonstop
Depart: Tue Jun 16 2015 Return: Wed Jun 17 2015 Trip spans 2 days
Frontier
Frontier
AUS
ORD
2h 40m
nonstop
ORD
AUS
2h 40m
nonstop
Depart: Thu Jun 18 2015 Return: Sat Jun 20 2015 Trip spans 3 days
Frontier
Frontier
ATL
ORD
2h 05m
nonstop
ORD
ATL
2h 05m
nonstop
Depart: Tue Jun 23 2015 Return: Wed Jun 24 2015 Trip spans 2 days
Frontier
Frontier
MCO
ORD
2h 50m
nonstop
ORD
MCO
2h 45m
nonstop
Depart: Fri Aug 21 2015 Return: Sun Aug 23 2015 Trip spans 3 days
Delta
Delta
MCI
ORD
5h 13m
1 stop
ORD
MCI
5h 20m
1 stop
Depart: Mon Jun 15 2015 Return: Thu Jun 18 2015 Trip spans 4 days
American Airlines
American Airlines
DFW
ORD
2h 31m
nonstop
ORD
DFW
2h 23m
nonstop
Depart: Wed Aug 19 2015 Return: Thu Aug 27 2015 Trip spans 9 days
Spirit Airlines
Spirit Airlines
BOS
ORD
2h 52m
nonstop
ORD
BOS
2h 26m
nonstop
Depart: Sat Oct 17 2015 Return: Wed Oct 21 2015 Trip spans 5 days
American Airlines
American Airlines
DCA
ORD
2h 04m
nonstop
ORD
DCA
1h 52m
nonstop
Depart: Sun Nov 15 2015 Return: Sat Dec 12 2015 Trip spans 28 days
Spirit Airlines
Spirit Airlines
PHX
ORD
3h 22m
nonstop
ORD
PHX
4h 00m
nonstop
Airports
Origin

Kansas City
$164
Raleigh
$117
Fort Lauderdale
$117
Austin
$158
Washington
only $145
only $177
Miami
$138
Minneapolis
$97
Atlanta
$158
Orlando
$158
New Orleans
$97
Phoenix
$177
Trenton
$105
Denver
$145
Dallas
$177
Tampa
$157
Philadelphia
$138
Houston
only $157
only $127
Boston
$177
Destination

Chicago
$97