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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: Thu May 28 2015 Return: Sun May 31 2015 Trip spans 4 days
Spirit Airlines
Spirit Airlines
MSY
ORD
2h 20m
nonstop
ORD
MSY
2h 22m
nonstop
Depart: Fri Aug 28 2015 Return: Sun Aug 30 2015 Trip spans 3 days
Spirit Airlines
Spirit Airlines
MSP
ORD
1h 25m
nonstop
ORD
MSP
1h 25m
nonstop
Depart: Fri Jun 19 2015 Return: Sat Jun 27 2015 Trip spans 9 days
Frontier
Frontier
TTN
ORD
2h 10m
nonstop
ORD
TTN
2h 00m
nonstop
Depart: Thu Jun 18 2015 Return: Tue Jun 23 2015 Trip spans 6 days
American Airlines
American Airlines
RDU
ORD
2h 09m
nonstop
ORD
RDU
1h 55m
nonstop
Depart: Sat Aug 22 2015 Return: Tue Sep 1 2015 Trip spans 11 days
Frontier
Frontier
PHL
ORD
2h 20m
nonstop
ORD
PHL
2h 05m
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: Mon Aug 17 2015 Return: Wed Aug 19 2015 Trip spans 3 days
American Airlines
American Airlines
DEN
ORD
2h 30m
nonstop
ORD
DEN
2h 38m
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: Sun May 31 2015 Return: Sun Jun 7 2015 Trip spans 8 days
United
United
DFW
ORD
2h 22m
nonstop
ORD
DFW
2h 30m
nonstop
Depart: Fri Jun 5 2015 Return: Wed Jun 10 2015 Trip spans 6 days
American Airlines
American Airlines
TPA
ORD
2h 53m
nonstop
ORD
TPA
2h 41m
nonstop
Depart: Tue Jun 16 2015 Return: Tue Jul 14 2015 Trip spans 29 days
United
United
HOU
ORD
2h 43m
nonstop
ORD
HOU
2h 42m
nonstop
Depart: Wed Jun 10 2015 Return: Sat Jun 13 2015 Trip spans 4 days
Frontier
Frontier
ATL
ORD
2h 05m
nonstop
ORD
ATL
2h 05m
nonstop
Depart: Fri Jun 12 2015 Return: Sun Jun 14 2015 Trip spans 3 days
Frontier
Frontier
LAS
ORD
3h 35m
nonstop
ORD
LAS
4h 00m
nonstop
Depart: Wed Sep 2 2015 Return: Wed Sep 9 2015 Trip spans 8 days
Frontier
Frontier
AUS
ORD
2h 40m
nonstop
ORD
AUS
2h 40m
nonstop
Depart: Mon Nov 2 2015 Return: Sat Nov 14 2015 Trip spans 13 days
Delta
Delta
MCI
ORD
7h 40m
1 stop
ORD
MCI
8h 10m
1 stop
Depart: Thu Sep 10 2015 Return: Tue Sep 15 2015 Trip spans 6 days
Spirit Airlines
Spirit Airlines
BOS
ORD
2h 51m
nonstop
ORD
BOS
2h 23m
nonstop
Depart: Wed Oct 14 2015 Return: Mon Oct 19 2015 Trip spans 6 days
American Airlines
American Airlines
DCA
ORD
2h 01m
nonstop
ORD
DCA
2h 00m
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
Depart: Mon Jun 1 2015 Return: Wed Jun 10 2015 Trip spans 10 days
Delta
Delta
DAL
ORD
4h 52m
1 stop
ORD
DAL
7h 18m
1 stop
Depart: Sat Jun 20 2015 Return: Wed Jul 1 2015 Trip spans 12 days
Delta
Delta
PBI
ORD
6h 16m
1 stop
ORD
PBI
5h 03m
1 stop
Airports
Origin

Kansas City
$164
Raleigh
$117
Austin
$158
Washington
only $145
only $177
Miami
$145
West Palm Beach
$184
Minneapolis
$97
Atlanta
$158
New Orleans
$97
Phoenix
$177
Trenton
$105
Denver
$145
Dallas
only $147
only $184
Tampa
$157
Philadelphia
$138
Las Vegas
$158
Houston
$157
Boston
$177
Destination

Chicago
$97