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

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youth
12-17
Child
2-11
Seat Infant
under 2
Lap Infant
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Ontario to Chicago O'Hare International

(Round-trip)
Depart: Tue Aug 18 2015 Return: Sat Aug 22 2015 Trip spans 5 days
United
United
ONT
6:24a
ORD
1:51p
7h 27m
1 stop
ORD
1:16a
ONT
8:44a
7h 28m
1 stop
Depart: Tue Aug 25 2015 Return: Tue Sep 1 2015 Trip spans 8 days
United
United
ONT
8:44a
ORD
3:36p
6h 52m
1 stop
ORD
6:47a
ONT
2:32p
7h 45m
1 stop
Depart: Wed Aug 26 2015 Return: Tue Sep 1 2015 Trip spans 7 days
United
United
ONT
1:05p
ORD
7:29p
6h 24m
1 stop
ORD
1:06p
ONT
10:29p
9h 23m
1 stop
Depart: Sat Aug 29 2015 Return: Tue Sep 1 2015 Trip spans 4 days
United
United
ONT
9:24a
ORD
4:45p
7h 21m
1 stop
ORD
8:29a
ONT
4:31p
8h 02m
1 stop
Depart: Wed Sep 2 2015 Return: Wed Sep 9 2015 Trip spans 8 days
United
United
ONT
4:46a
ORD
1:13p
8h 27m
1 stop
ORD
3:16p
ONT
10:29p
7h 13m
1 stop
Depart: Tue Sep 15 2015 Return: Sat Sep 19 2015 Trip spans 5 days
United
United
ONT
8:44a
ORD
4:47p
8h 03m
1 stop
ORD
12:02p
ONT
8:32p
8h 30m
1 stop
Depart: Sat Sep 19 2015 Return: Wed Sep 23 2015 Trip spans 5 days
United
United
ONT
6:24a
ORD
1:51p
7h 27m
1 stop
ORD
1:16a
ONT
8:44a
7h 28m
1 stop
Depart: Wed Sep 23 2015 Return: Wed Oct 28 2015 Trip spans 36 days
United
United
ONT
8:44a
ORD
4:45p
8h 01m
1 stop
ORD
2:30p
ONT
9:59p
7h 29m
1 stop
Depart: Sat Sep 26 2015 Return: Tue Sep 29 2015 Trip spans 4 days
United
United
ONT
9:30a
ORD
4:29p
6h 59m
1 stop
ORD
2:00a
ONT
10:09a
8h 09m
1 stop
Depart: Sat Oct 3 2015 Return: Tue Oct 6 2015 Trip spans 4 days
United
United
ONT
4:46a
ORD
1:12p
8h 26m
1 stop
ORD
8:00a
ONT
4:30p
8h 30m
1 stop
Depart: Sat Oct 10 2015 Return: Tue Oct 13 2015 Trip spans 4 days
United
United
ONT
8:39a
ORD
4:29p
7h 50m
1 stop
ORD
1:35p
ONT
10:29p
8h 54m
1 stop
Depart: Tue Oct 13 2015 Return: Tue Oct 20 2015 Trip spans 8 days
United
United
ONT
4:46a
ORD
1:51p
9h 05m
1 stop
ORD
8:00a
ONT
3:31p
7h 31m
1 stop
Depart: Sat Oct 17 2015 Return: Wed Oct 28 2015 Trip spans 12 days
United
United
ONT
8:39a
ORD
4:29p
7h 50m
1 stop
ORD
10:30a
ONT
6:15p
7h 45m
1 stop
Depart: Tue Oct 20 2015 Return: Sat Oct 24 2015 Trip spans 5 days
United
United
ONT
4:46a
ORD
1:51p
9h 05m
1 stop
ORD
6:42a
ONT
4:30p
9h 48m
1 stop
Depart: Wed Oct 21 2015 Return: Sat Oct 24 2015 Trip spans 4 days
United
United
ONT
9:21a
ORD
3:45p
6h 24m
1 stop
ORD
11:06a
ONT
6:27p
7h 21m
1 stop
Depart: Sat Oct 24 2015 Return: Tue Oct 27 2015 Trip spans 4 days
United
United
ONT
2:00a
ORD
8:59a
6h 59m
1 stop
ORD
7:20a
ONT
2:48p
7h 28m
1 stop
Depart: Tue Oct 27 2015 Return: Tue Nov 10 2015 Trip spans 15 days
United
United
ONT
1:20p
ORD
7:29p
6h 09m
1 stop
ORD
8:45a
ONT
3:33p
6h 48m
1 stop
Depart: Tue Sep 1 2015 Return: Sat Sep 5 2015 Trip spans 5 days
American Airlines
American Airlines
ONT
10:15a
ORD
4:44p
6h 29m
1 stop
ORD
1:10a
ONT
7:05a
5h 55m
1 stop
Depart: Tue Sep 8 2015 Return: Sat Sep 12 2015 Trip spans 5 days
Delta
Delta
ONT
2:15a
ORD
9:23a
7h 08m
1 stop
ORD
12:15p
ONT
7:09p
6h 54m
1 stop
Depart: Fri Sep 11 2015 Return: Tue Sep 15 2015 Trip spans 5 days
US Airways
US Airways
ONT
8:35a
ORD
2:49p
6h 14m
1 stop
ORD
1:05a
ONT
7:08a
6h 03m
1 stop
Airports
Origin

Ontario
$231
Destination

Chicago
$231