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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 14 2015 Return: Tue May 19 2015 Trip spans 6 days
Frontier
Frontier
AUS
ORD
2h 35m
nonstop
ORD
AUS
2h 40m
nonstop
Depart: Wed May 6 2015 Return: Wed May 13 2015 Trip spans 8 days
Frontier
Frontier
IAD
ORD
1h 55m
nonstop
ORD
IAD
1h 40m
nonstop
Depart: Sat Apr 11 2015 Return: Sat Apr 18 2015 Trip spans 8 days
Spirit Airlines
Spirit Airlines
MCI
ORD
1h 30m
nonstop
ORD
MCI
1h 25m
nonstop
Depart: Wed Apr 15 2015 Return: Wed Apr 29 2015 Trip spans 15 days
Spirit Airlines
Spirit Airlines
HOU
ORD
2h 35m
nonstop
ORD
HOU
2h 42m
nonstop
Depart: Sat Apr 18 2015 Return: Sat May 2 2015 Trip spans 15 days
Spirit Airlines
Spirit Airlines
IAH
ORD
2h 36m
nonstop
ORD
IAH
2h 42m
nonstop
Depart: Tue May 19 2015 Return: Wed May 27 2015 Trip spans 9 days
American Airlines
American Airlines
DFW
ORD
2h 26m
nonstop
ORD
DFW
2h 32m
nonstop
Depart: Fri May 1 2015 Return: Tue May 12 2015 Trip spans 12 days
Spirit Airlines
Spirit Airlines
MSY
ORD
2h 19m
nonstop
ORD
MSY
2h 22m
nonstop
Depart: Sat Apr 4 2015 Return: Wed Apr 8 2015 Trip spans 5 days
Spirit Airlines
Spirit Airlines
MSP
ORD
1h 32m
nonstop
ORD
MSP
1h 28m
nonstop
Depart: Tue Jun 2 2015 Return: Tue Jun 9 2015 Trip spans 8 days
Spirit Airlines
Spirit Airlines
DEN
ORD
2h 33m
nonstop
ORD
DEN
2h 33m
nonstop
Depart: Tue Apr 21 2015 Return: Tue Apr 28 2015 Trip spans 8 days
Frontier
Frontier
TPA
ORD
2h 50m
nonstop
ORD
TPA
2h 30m
nonstop
Depart: Wed Apr 22 2015 Return: Tue Apr 28 2015 Trip spans 7 days
Spirit Airlines
Spirit Airlines
FLL
ORD
3h 15m
nonstop
ORD
FLL
3h 00m
nonstop
Depart: Tue Apr 28 2015 Return: Sat May 2 2015 Trip spans 5 days
Spirit Airlines
Spirit Airlines
LGA
ORD
2h 29m
nonstop
ORD
LGA
2h 07m
nonstop
Depart: Tue May 5 2015 Return: Tue May 19 2015 Trip spans 15 days
Spirit Airlines
Spirit Airlines
BOS
ORD
2h 49m
nonstop
ORD
BOS
2h 29m
nonstop
Depart: Thu Apr 23 2015 Return: Sun Apr 26 2015 Trip spans 4 days
Frontier
Frontier
ATL
ORD
2h 00m
nonstop
ORD
ATL
1h 50m
nonstop
Depart: Tue Apr 14 2015 Return: Tue Apr 21 2015 Trip spans 8 days
Frontier
Frontier
LAS
ORD
3h 30m
nonstop
ORD
LAS
3h 50m
nonstop
Depart: Mon Apr 27 2015 Return: Tue Apr 28 2015 Trip spans 2 days
Frontier
Frontier
SLC
ORD
3h 05m
nonstop
ORD
SLC
3h 25m
nonstop
Depart: Tue Jul 21 2015 Return: Tue Jul 28 2015 Trip spans 8 days
Frontier
Frontier
RDU
ORD
2h 00m
nonstop
ORD
RDU
1h 50m
nonstop
Depart: Thu Apr 16 2015 Return: Tue Apr 28 2015 Trip spans 13 days
Frontier
Frontier
MIA
ORD
3h 15m
nonstop
ORD
MIA
3h 00m
nonstop
Depart: Mon May 18 2015 Return: Thu May 21 2015 Trip spans 4 days
Frontier
Frontier
PHL
ORD
2h 05m
nonstop
ORD
PHL
1h 55m
nonstop
Depart: Wed Aug 26 2015 Return: Wed Sep 16 2015 Trip spans 22 days
JetBlue Airways
JetBlue Airways
JFK
ORD
2h 33m
nonstop
ORD
JFK
2h 17m
nonstop
Airports
Origin

New York
only $177
only $117
Kansas City
$79
Raleigh
$138
Fort Lauderdale
$117
Austin
$68
Washington
$78
Miami
$145
Minneapolis
$97
Atlanta
$128
New Orleans
$89
Salt Lake City
$138
Denver
$97
Dallas
$87
Tampa
$98
Philadelphia
$148
Las Vegas
$137
Houston
only $79
only $79
Boston
$127
Destination

Chicago
$68