Browse Origins:
Browse Destinations:

Find Flight Deals from Ontario to Chicago O'Hare International (ONT - ORD)

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

Book cheap flights from Ontario to Chicago O'Hare International

(Round-trip)
Depart: Wed Feb 18 2015 Return: Tue Feb 24 2015 Trip spans 7 days
US Airways
US Airways
ONT
11:40a
ORD
5:02p
5h 22m
1 stop
ORD
12:00a
ONT
8:34a
8h 34m
1 stop
Depart: Tue Feb 24 2015 Return: Tue Mar 3 2015 Trip spans 8 days
US Airways
US Airways
ONT
11:40a
ORD
5:02p
5h 22m
1 stop
ORD
12:00a
ONT
6:06a
6h 06m
1 stop
Depart: Tue Mar 3 2015 Return: Tue Mar 10 2015 Trip spans 7 days
US Airways
US Airways
ONT
11:40a
ORD
5:02p
5h 22m
1 stop
ORD
1:00a
ONT
9:34a
8h 34m
1 stop
Depart: Wed Mar 4 2015 Return: Tue Mar 10 2015 Trip spans 6 days
US Airways
US Airways
ONT
11:40a
ORD
5:02p
5h 22m
1 stop
ORD
1:00a
ONT
9:34a
8h 34m
1 stop
Depart: Sat Feb 14 2015 Return: Wed Feb 18 2015 Trip spans 5 days
US Airways
US Airways
ONT
11:40a
ORD
5:02p
5h 22m
1 stop
ORD
12:00a
ONT
6:06a
6h 06m
1 stop
Depart: Sat Feb 21 2015 Return: Tue Feb 24 2015 Trip spans 4 days
US Airways
US Airways
ONT
7:40a
ORD
1:41p
6h 01m
1 stop
ORD
12:00a
ONT
8:34a
8h 34m
1 stop
Depart: Wed Feb 25 2015 Return: Tue Mar 3 2015 Trip spans 7 days
US Airways
US Airways
ONT
7:40a
ORD
1:41p
6h 01m
1 stop
ORD
12:00a
ONT
8:34a
8h 34m
1 stop
Depart: Sat Feb 28 2015 Return: Tue Mar 3 2015 Trip spans 4 days
US Airways
US Airways
ONT
7:40a
ORD
1:41p
6h 01m
1 stop
ORD
12:00a
ONT
8:34a
8h 34m
1 stop
Depart: Thu Feb 12 2015 Return: Wed Feb 18 2015 Trip spans 7 days
US Airways
US Airways
ONT
4:56p
ORD
10:38p
5h 42m
1 stop
ORD
12:00a
ONT
8:34a
8h 34m
1 stop
Depart: Thu Feb 26 2015 Return: Tue Mar 3 2015 Trip spans 6 days
US Airways
US Airways
ONT
4:56p
ORD
10:38p
5h 42m
1 stop
ORD
12:00a
ONT
6:06a
6h 06m
1 stop
Depart: Thu Mar 5 2015 Return: Tue Mar 10 2015 Trip spans 5 days
US Airways
US Airways
ONT
11:40a
ORD
5:02p
5h 22m
1 stop
ORD
1:00a
ONT
9:34a
8h 34m
1 stop
Depart: Thu Mar 12 2015 Return: Sat Mar 14 2015 Trip spans 3 days
US Airways
US Airways
ONT
5:56p
ORD
11:18p
5h 22m
1 stop
ORD
1:00a
ONT
7:08a
6h 08m
1 stop
Depart: Thu Mar 19 2015 Return: Tue Mar 31 2015 Trip spans 13 days
US Airways
US Airways
ONT
5:56p
ORD
11:18p
5h 22m
1 stop
ORD
1:00a
ONT
7:07a
6h 07m
1 stop
Depart: Fri Feb 13 2015 Return: Wed Feb 18 2015 Trip spans 6 days
US Airways
US Airways
ONT
4:56p
ORD
10:38p
5h 42m
1 stop
ORD
12:00a
ONT
6:06a
6h 06m
1 stop
Depart: Thu Feb 19 2015 Return: Tue Feb 24 2015 Trip spans 6 days
US Airways
US Airways
ONT
1:30a
ORD
7:46a
6h 16m
1 stop
ORD
12:00a
ONT
6:06a
6h 06m
1 stop
Depart: Fri Feb 27 2015 Return: Tue Mar 3 2015 Trip spans 5 days
US Airways
US Airways
ONT
1:30a
ORD
7:46a
6h 16m
1 stop
ORD
12:00a
ONT
6:06a
6h 06m
1 stop
Depart: Tue Feb 17 2015 Return: Tue Feb 24 2015 Trip spans 8 days
American Airlines
American Airlines
ONT
9:55a
ORD
3:54p
5h 59m
1 stop
ORD
1:30a
ONT
8:50a
7h 20m
1 stop
Depart: Sat Apr 25 2015 Return: Sun Apr 26 2015 Trip spans 2 days
United
United
ONT
3:18p
ORD
10:30p
7h 12m
1 stop
ORD
2:53a
ONT
11:36a
8h 43m
1 stop
Depart: Wed Apr 29 2015 Return: Tue May 5 2015 Trip spans 7 days
Delta
Delta
ONT
6:20a
ORD
11:47a
5h 27m
1 stop
ORD
12:40p
ONT
7:46p
7h 06m
1 stop
Depart: Tue Mar 17 2015 Return: Sat Mar 21 2015 Trip spans 5 days
Multiple Airlines
Multiple Airlines
ONT
3:00p
ORD
12:44a
9h 44m
1 stop
ORD
1:05p
ONT
9:56p
8h 51m
1 stop
Change your search
Airports
Origin

Ontario
$247
Destination

Chicago
$247