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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: Sat Apr 25 2015 Return: Mon Apr 27 2015 Trip spans 3 days
Spirit Airlines
Spirit Airlines
MCI
ORD
1h 37m
nonstop
ORD
MCI
1h 25m
nonstop
Depart: Wed May 20 2015 Return: Wed Jun 3 2015 Trip spans 15 days
Spirit Airlines
Spirit Airlines
HOU
ORD
2h 36m
nonstop
ORD
HOU
2h 40m
nonstop
Depart: Sun Apr 26 2015 Return: Tue Apr 28 2015 Trip spans 3 days
Spirit Airlines
Spirit Airlines
MSP
ORD
1h 24m
nonstop
ORD
MSP
1h 25m
nonstop
Depart: Sat May 30 2015 Return: Wed Jun 3 2015 Trip spans 5 days
Spirit Airlines
Spirit Airlines
TPA
ORD
2h 46m
nonstop
ORD
TPA
2h 40m
nonstop
Depart: Sat May 9 2015 Return: Tue May 12 2015 Trip spans 4 days
Frontier
Frontier
DEN
ORD
2h 20m
nonstop
ORD
DEN
2h 35m
nonstop
Depart: Fri Apr 24 2015 Return: Mon May 4 2015 Trip spans 11 days
Spirit Airlines
Spirit Airlines
MSY
ORD
2h 20m
nonstop
ORD
MSY
2h 22m
nonstop
Depart: Sat May 16 2015 Return: Sat May 23 2015 Trip spans 8 days
Frontier
Frontier
PHL
ORD
2h 05m
nonstop
ORD
PHL
1h 55m
nonstop
Depart: Thu May 28 2015 Return: Tue Jun 2 2015 Trip spans 6 days
Frontier
Frontier
ATL
ORD
1h 55m
nonstop
ORD
ATL
1h 50m
nonstop
Depart: Thu May 7 2015 Return: Sat May 16 2015 Trip spans 10 days
Spirit Airlines
Spirit Airlines
FLL
ORD
3h 15m
nonstop
ORD
FLL
3h 05m
nonstop
Depart: Thu May 14 2015 Return: Thu May 28 2015 Trip spans 15 days
Frontier
Frontier
MIA
ORD
3h 10m
nonstop
ORD
MIA
3h 05m
nonstop
Depart: Sat Jun 6 2015 Return: Tue Jun 9 2015 Trip spans 4 days
American Airlines
American Airlines
DFW
ORD
2h 36m
nonstop
ORD
DFW
2h 32m
nonstop
Depart: Tue May 5 2015 Return: Thu May 7 2015 Trip spans 3 days
Frontier
Frontier
IAD
ORD
1h 55m
nonstop
ORD
IAD
1h 40m
nonstop
Depart: Tue May 12 2015 Return: Wed May 13 2015 Trip spans 2 days
Spirit Airlines
Spirit Airlines
BOS
ORD
2h 49m
nonstop
ORD
BOS
2h 29m
nonstop
Depart: Thu Sep 24 2015 Return: Sun Sep 27 2015 Trip spans 4 days
Spirit Airlines
Spirit Airlines
IAH
ORD
2h 41m
nonstop
ORD
IAH
2h 38m
nonstop
Depart: Mon May 18 2015 Return: Sat May 30 2015 Trip spans 13 days
Frontier
Frontier
RDU
ORD
2h 00m
nonstop
ORD
RDU
1h 55m
nonstop
Depart: Wed Jun 17 2015 Return: Tue Jun 23 2015 Trip spans 7 days
Frontier
Frontier
MCO
ORD
2h 50m
nonstop
ORD
MCO
2h 45m
nonstop
Depart: Wed May 13 2015 Return: Fri May 15 2015 Trip spans 3 days
Spirit Airlines
Spirit Airlines
LGA
ORD
2h 29m
nonstop
ORD
LGA
2h 07m
nonstop
Depart: Mon Jun 8 2015 Return: Wed Jun 10 2015 Trip spans 3 days
Frontier
Frontier
SLC
ORD
3h 00m
nonstop
ORD
SLC
3h 20m
nonstop
Depart: Tue Sep 8 2015 Return: Tue Sep 15 2015 Trip spans 8 days
Frontier
Frontier
AUS
ORD
2h 35m
nonstop
ORD
AUS
2h 40m
nonstop
Depart: Mon May 11 2015 Return: Wed May 13 2015 Trip spans 3 days
United
United
CLE
ORD
1h 32m
nonstop
ORD
CLE
1h 21m
nonstop
Airports
Origin

Kansas City
$79
New York
$147
Raleigh
$138
Fort Lauderdale
$117
Austin
$158
Cleveland
$167
Washington
$132
Miami
$118
Minneapolis
$81
Atlanta
$108
Orlando
$145
New Orleans
$97
Salt Lake City
$152
Denver
$88
Dallas
$118
Tampa
$87
Philadelphia
$98
Houston
only $137
only $79
Boston
$137
Destination

Chicago
$79