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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: Wed Jun 3 2015 Return: Tue Jun 9 2015 Trip spans 7 days
Spirit Airlines
Spirit Airlines
DFW
ORD
2h 20m
nonstop
ORD
DFW
2h 21m
nonstop
Depart: Tue May 12 2015 Return: Wed May 13 2015 Trip spans 2 days
Spirit Airlines
Spirit Airlines
MSP
ORD
1h 29m
nonstop
ORD
MSP
1h 24m
nonstop
Depart: Tue Jun 2 2015 Return: Sat Jun 6 2015 Trip spans 5 days
Spirit Airlines
Spirit Airlines
ATL
ORD
2h 00m
nonstop
ORD
ATL
1h 53m
nonstop
Depart: Wed Oct 7 2015 Return: Sat Oct 10 2015 Trip spans 4 days
Frontier
Frontier
TTN
ORD
2h 15m
nonstop
ORD
TTN
1h 55m
nonstop
Depart: Wed May 27 2015 Return: Tue Jun 2 2015 Trip spans 7 days
Spirit Airlines
Spirit Airlines
FLL
ORD
3h 15m
nonstop
ORD
FLL
3h 00m
nonstop
Depart: Tue Jun 9 2015 Return: Wed Jun 10 2015 Trip spans 2 days
Spirit Airlines
Spirit Airlines
PHL
ORD
2h 19m
nonstop
ORD
PHL
1h 56m
nonstop
Depart: Thu May 21 2015 Return: Sun May 24 2015 Trip spans 4 days
Frontier
Frontier
RDU
ORD
2h 00m
nonstop
ORD
RDU
1h 55m
nonstop
Depart: Fri May 29 2015 Return: Mon Jun 1 2015 Trip spans 4 days
Spirit Airlines
Spirit Airlines
TPA
ORD
2h 46m
nonstop
ORD
TPA
2h 40m
nonstop
Depart: Wed Jun 17 2015 Return: Wed Jun 24 2015 Trip spans 8 days
American Airlines
American Airlines
MCI
ORD
1h 32m
nonstop
ORD
MCI
1h 33m
nonstop
Depart: Mon Jun 8 2015 Return: Wed Jun 10 2015 Trip spans 3 days
Spirit Airlines
Spirit Airlines
HOU
ORD
2h 30m
nonstop
ORD
HOU
2h 42m
nonstop
Depart: Sun Aug 23 2015 Return: Sat Aug 29 2015 Trip spans 7 days
Spirit Airlines
Spirit Airlines
IAH
ORD
2h 41m
nonstop
ORD
IAH
2h 40m
nonstop
Depart: Tue May 19 2015 Return: Wed May 27 2015 Trip spans 9 days
Frontier
Frontier
SLC
ORD
3h 00m
nonstop
ORD
SLC
3h 20m
nonstop
Depart: Sat May 23 2015 Return: Sun May 24 2015 Trip spans 2 days
Frontier
Frontier
MCO
ORD
2h 45m
nonstop
ORD
MCO
2h 40m
nonstop
Depart: Thu Jun 11 2015 Return: Tue Jun 16 2015 Trip spans 6 days
Frontier
Frontier
MIA
ORD
3h 20m
nonstop
ORD
MIA
3h 10m
nonstop
Depart: Wed Jun 24 2015 Return: Tue Jun 30 2015 Trip spans 7 days
Frontier
Frontier
IAD
ORD
2h 00m
nonstop
ORD
IAD
1h 50m
nonstop
Depart: Thu Jul 2 2015 Return: Sat Jul 11 2015 Trip spans 10 days
American Airlines
American Airlines
DEN
ORD
2h 29m
nonstop
ORD
DEN
2h 41m
nonstop
Depart: Wed Aug 19 2015 Return: Wed Aug 26 2015 Trip spans 8 days
Frontier
Frontier
AUS
ORD
2h 35m
nonstop
ORD
AUS
2h 30m
nonstop
Depart: Wed Sep 16 2015 Return: Tue Sep 22 2015 Trip spans 7 days
JetBlue Airways
JetBlue Airways
BOS
ORD
2h 44m
nonstop
ORD
BOS
2h 17m
nonstop
Depart: Mon May 11 2015 Return: Tue May 26 2015 Trip spans 16 days
United
United
LAS
ORD
3h 41m
nonstop
ORD
LAS
3h 59m
nonstop
Depart: Sat Oct 3 2015 Return: Sat Oct 10 2015 Trip spans 8 days
US Airways
US Airways
CLE
ORD
1h 21m
nonstop
ORD
CLE
1h 36m
nonstop
Airports
Origin

Kansas City
$135
Raleigh
$118
Fort Lauderdale
$117
Austin
$158
Cleveland
$167
Washington
$145
Miami
$145
Minneapolis
$97
Atlanta
$97
Orlando
$145
Salt Lake City
$138
Trenton
$105
Denver
$145
Dallas
$81
Tampa
$127
Philadelphia
$117
Las Vegas
$166
Houston
only $137
only $137
Boston
$161
Destination

Chicago
$81