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Find Flight Deals from United States to Chicago

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights to Chicago

(Round-trip)
Depart: Sat Feb 7 2015 Return: Mon Feb 9 2015 Trip spans 3 days
Spirit Airlines
Spirit Airlines
MSP
1:50p
ORD
3:22p
1h 32m
nonstop
ORD
2:52p
MSP
4:19p
1h 27m
nonstop
Depart: Mon Feb 9 2015 Return: Thu Feb 12 2015 Trip spans 4 days
Sun Country Air
Sun Country Air
MSP
3:15a
MDW
4:40a
1h 25m
nonstop
MDW
1:35p
MSP
3:00p
1h 25m
nonstop
Depart: Sat Feb 21 2015 Return: Tue Feb 24 2015 Trip spans 4 days
Spirit Airlines
Spirit Airlines
DFW
1:16a
ORD
3:35a
2h 19m
nonstop
ORD
4:15a
DFW
6:43a
2h 28m
nonstop
Depart: Mon Feb 2 2015 Return: Wed Feb 11 2015 Trip spans 10 days
Frontier
Frontier
TTN
1:25a
MDW
3:45a
2h 20m
nonstop
MDW
12:35p
TTN
2:20p
1h 45m
nonstop
Depart: Tue Feb 3 2015 Return: Wed Feb 4 2015 Trip spans 2 days
American Airlines
American Airlines
DEN
7:10a
ORD
9:33a
2h 23m
nonstop
ORD
2:20a
DEN
5:10a
2h 50m
nonstop
Depart: Fri Mar 13 2015 Return: Wed Mar 18 2015 Trip spans 6 days
Frontier
Frontier
IAD
4:40a
ORD
6:35a
1h 55m
nonstop
ORD
8:35a
IAD
10:20a
1h 45m
nonstop
Depart: Tue Aug 18 2015 Return: Mon Aug 24 2015 Trip spans 7 days
Spirit Airlines
Spirit Airlines
BOS
9:54a
ORD
12:44p
2h 50m
nonstop
ORD
9:40a
BOS
12:08p
2h 28m
nonstop
Depart: Wed Jul 8 2015 Return: Tue Jul 14 2015 Trip spans 7 days
United
United
EWR
11:00a
ORD
1:35p
2h 35m
nonstop
ORD
4:00a
EWR
6:04a
2h 04m
nonstop
Depart: Sun Jun 21 2015 Return: Mon Jun 22 2015 Trip spans 2 days
Delta
Delta
TPA
9:00a
ORD
1:22p
4h 22m
1 stop
ORD
5:00a
TPA
10:00a
5h 00m
1 stop
Depart: Mon Jul 27 2015 Return: Wed Jul 29 2015 Trip spans 3 days
Spirit Airlines
Spirit Airlines
PHL
2:05a
ORD
4:24a
2h 19m
nonstop
ORD
4:50p
PHL
6:46p
1h 56m
nonstop
Depart: Sun Jul 26 2015 Return: Tue Aug 4 2015 Trip spans 10 days
Delta
Delta
PHX
5:10a
ORD
12:43p
7h 33m
1 stop
ORD
5:10a
PHX
12:40p
7h 30m
1 stop
Depart: Thu Aug 13 2015 Return: Sun Aug 23 2015 Trip spans 11 days
Spirit Airlines
Spirit Airlines
ATL
7:10a
ORD
9:09a
1h 59m
nonstop
ORD
5:45p
ATL
7:37p
1h 52m
nonstop
Change your search
Airports
Origin

Minneapolis
$81
Atlanta
$207
Phoenix
$204
Newark
$177
Denver
$107
Trenton
$82
Dallas
$81
Tampa
$184
Philadelphia
$192
Washington
$112
Boston
$157
Destination

Chicago
only $81
only $81