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 11 2015 Return: Fri Aug 28 2015 Trip spans 18 days
American Airlines
American Airlines
ONT
12:40p
ORD
6:12p
5h 32m
1 stop
ORD
1:10a
ONT
7:09a
5h 59m
1 stop
Depart: Sat Aug 15 2015 Return: Tue Aug 18 2015 Trip spans 4 days
US Airways
US Airways
ONT
5:45p
ORD
11:25p
5h 40m
1 stop
ORD
1:10a
ONT
7:09a
5h 59m
1 stop
Depart: Tue Aug 25 2015 Return: Wed Aug 26 2015 Trip spans 2 days
United
United
ONT
6:24a
ORD
1:51p
7h 27m
1 stop
ORD
3:04a
ONT
10:12a
7h 08m
1 stop
Depart: Wed Aug 12 2015 Return: Tue Aug 18 2015 Trip spans 7 days
American Airlines
American Airlines
ONT
8:35a
ORD
2:53p
6h 18m
1 stop
ORD
1:10a
ONT
9:31a
8h 21m
1 stop
Depart: Sat Aug 22 2015 Return: Sun Aug 23 2015 Trip spans 2 days
American Airlines
American Airlines
ONT
6:00a
ORD
12:03p
6h 03m
1 stop
ORD
1:10a
ONT
7:09a
5h 59m
1 stop
Depart: Sat Aug 29 2015 Return: Sun Aug 30 2015 Trip spans 2 days
US Airways
US Airways
ONT
2:15a
ORD
9:59a
7h 44m
1 stop
ORD
1:10a
ONT
7:09a
5h 59m
1 stop
Depart: Tue Sep 1 2015 Return: Wed Sep 9 2015 Trip spans 9 days
American Airlines
American Airlines
ONT
12:40p
ORD
6:12p
5h 32m
1 stop
ORD
1:00a
ONT
8:12a
7h 12m
1 stop
Depart: Wed Sep 16 2015 Return: Sat Sep 19 2015 Trip spans 4 days
United
United
ONT
1:05p
ORD
7:29p
6h 24m
1 stop
ORD
1:42p
ONT
8:32p
6h 50m
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
9:45a
ONT
4:30p
6h 45m
1 stop
Depart: Sat Oct 3 2015 Return: Tue Oct 6 2015 Trip spans 4 days
American Airlines
American Airlines
ONT
6:00a
ORD
11:45a
5h 45m
1 stop
ORD
1:00a
ONT
9:33a
8h 33m
1 stop
Depart: Mon Oct 5 2015 Return: Tue Oct 13 2015 Trip spans 9 days
US Airways
US Airways
ONT
12:40p
ORD
6:10p
5h 30m
1 stop
ORD
1:00a
ONT
7:13a
6h 13m
1 stop
Depart: Tue Oct 6 2015 Return: Tue Oct 13 2015 Trip spans 8 days
US Airways
US Airways
ONT
12:40p
ORD
6:10p
5h 30m
1 stop
ORD
1:00a
ONT
7:13a
6h 13m
1 stop
Depart: Wed Oct 7 2015 Return: Tue Oct 13 2015 Trip spans 7 days
US Airways
US Airways
ONT
8:35a
ORD
2:49p
6h 14m
1 stop
ORD
1:00a
ONT
7:13a
6h 13m
1 stop
Depart: Sat Oct 10 2015 Return: Tue Oct 13 2015 Trip spans 4 days
US Airways
US Airways
ONT
12:40p
ORD
6:10p
5h 30m
1 stop
ORD
1:00a
ONT
7:13a
6h 13m
1 stop
Depart: Wed Oct 14 2015 Return: Tue Oct 27 2015 Trip spans 14 days
American Airlines
American Airlines
ONT
8:35a
ORD
2:49p
6h 14m
1 stop
ORD
1:00a
ONT
7:13a
6h 13m
1 stop
Depart: Sat Oct 17 2015 Return: Tue Oct 20 2015 Trip spans 4 days
United
United
ONT
9:30a
ORD
4:29p
6h 59m
1 stop
ORD
3:16p
ONT
10:29p
7h 13m
1 stop
Depart: Tue Oct 20 2015 Return: Sat Oct 24 2015 Trip spans 5 days
American Airlines
American Airlines
ONT
3:25p
ORD
11:23p
7h 58m
1 stop
ORD
1:00a
ONT
8:12a
7h 12m
1 stop
Depart: Sat Oct 24 2015 Return: Tue Oct 27 2015 Trip spans 4 days
United
United
ONT
2:49a
ORD
9:54a
7h 05m
1 stop
ORD
8:39a
ONT
3:30p
6h 51m
1 stop
Depart: Tue Oct 27 2015 Return: Wed Oct 28 2015 Trip spans 2 days
United
United
ONT
9:20a
ORD
3:36p
6h 16m
1 stop
ORD
4:34a
ONT
10:45a
6h 11m
1 stop
Depart: Fri Aug 28 2015 Return: Sat Aug 29 2015 Trip spans 2 days
Delta
Delta
ONT
2:05a
ORD
9:29a
7h 24m
1 stop
ORD
12:15p
ONT
7:12p
6h 57m
1 stop
Airports
Origin

Ontario
$231
Destination

Chicago
$231