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 Nov 17 2015 Return: Wed Nov 18 2015 Trip spans 2 days
United
United
ONT
1:00p
ORD
9:40p
8h 40m
1 stop
ORD
2:02a
ONT
9:12a
7h 10m
1 stop
Depart: Sat Sep 26 2015 Return: Sat Oct 31 2015 Trip spans 36 days
United
United
ONT
8:39a
ORD
4:29p
7h 50m
1 stop
ORD
9:47a
ONT
6:37p
8h 50m
1 stop
Depart: Tue Sep 29 2015 Return: Wed Sep 30 2015 Trip spans 2 days
United
United
ONT
6:27a
ORD
1:12p
6h 45m
1 stop
ORD
1:15a
ONT
8:43a
7h 28m
1 stop
Depart: Sat Oct 24 2015 Return: Sat Oct 31 2015 Trip spans 8 days
United
United
ONT
1:05a
ORD
8:49a
7h 44m
1 stop
ORD
1:05a
ONT
8:50a
7h 45m
1 stop
Depart: Sat Nov 14 2015 Return: Tue Nov 17 2015 Trip spans 4 days
United
United
ONT
2:02p
ORD
9:40p
7h 38m
1 stop
ORD
2:20p
ONT
9:35p
7h 15m
1 stop
Depart: Tue Sep 15 2015 Return: Tue Sep 29 2015 Trip spans 15 days
United
United
ONT
5:07p
ORD
12:29a
7h 22m
1 stop
ORD
1:15a
ONT
8:43a
7h 28m
1 stop
Depart: Wed Sep 16 2015 Return: Tue Sep 22 2015 Trip spans 7 days
United
United
ONT
8:44a
ORD
3:38p
6h 54m
1 stop
ORD
6:47a
ONT
2:32p
7h 45m
1 stop
Depart: Mon Sep 28 2015 Return: Wed Sep 30 2015 Trip spans 3 days
United
United
ONT
3:00p
ORD
11:20p
8h 20m
1 stop
ORD
1:15a
ONT
8:43a
7h 28m
1 stop
Depart: Fri Oct 9 2015 Return: Wed Oct 14 2015 Trip spans 6 days
United
United
ONT
2:01p
ORD
10:44p
8h 43m
1 stop
ORD
2:00a
ONT
10:09a
8h 09m
1 stop
Depart: Fri Oct 16 2015 Return: Tue Oct 20 2015 Trip spans 5 days
United
United
ONT
2:01p
ORD
10:44p
8h 43m
1 stop
ORD
2:50p
ONT
10:29p
7h 39m
1 stop
Depart: Tue Oct 20 2015 Return: Thu Oct 29 2015 Trip spans 10 days
United
United
ONT
2:01p
ORD
11:20p
9h 19m
1 stop
ORD
2:00a
ONT
10:12a
8h 12m
1 stop
Depart: Fri Oct 23 2015 Return: Wed Oct 28 2015 Trip spans 6 days
United
United
ONT
2:01p
ORD
10:44p
8h 43m
1 stop
ORD
5:55a
ONT
3:30p
9h 35m
1 stop
Depart: Mon Nov 2 2015 Return: Tue Nov 10 2015 Trip spans 9 days
United
United
ONT
2:02p
ORD
9:40p
7h 38m
1 stop
ORD
2:20p
ONT
9:35p
7h 15m
1 stop
Depart: Wed Nov 4 2015 Return: Sun Dec 6 2015 Trip spans 33 days
United
United
ONT
4:07p
ORD
10:20p
6h 13m
1 stop
ORD
7:26a
ONT
2:35p
7h 09m
1 stop
Depart: Sat Nov 7 2015 Return: Thu Nov 12 2015 Trip spans 6 days
United
United
ONT
12:30a
ORD
7:53a
7h 23m
1 stop
ORD
12:05a
ONT
7:50a
7h 45m
1 stop
Depart: Fri Sep 11 2015 Return: Wed Sep 16 2015 Trip spans 6 days
United
United
ONT
6:24a
ORD
1:51p
7h 27m
1 stop
ORD
7:29a
ONT
3:27p
7h 58m
1 stop
Depart: Mon Oct 12 2015 Return: Wed Oct 14 2015 Trip spans 3 days
United
United
ONT
4:57p
ORD
12:37a
7h 40m
1 stop
ORD
2:00a
ONT
10:09a
8h 09m
1 stop
Depart: Thu Sep 10 2015 Return: Sat Sep 19 2015 Trip spans 10 days
American Airlines
American Airlines
ONT
10:23a
ORD
6:28p
8h 05m
1 stop
ORD
1:05a
ONT
7:07a
6h 02m
1 stop
Depart: Sat Sep 12 2015 Return: Tue Sep 22 2015 Trip spans 11 days
US Airways
US Airways
ONT
2:30a
ORD
10:10a
7h 40m
1 stop
ORD
1:00a
ONT
8:12a
7h 12m
1 stop
Depart: Wed Sep 9 2015 Return: Fri Sep 25 2015 Trip spans 17 days
Delta
Delta
ONT
2:15a
ORD
9:23a
7h 08m
1 stop
ORD
12:15p
ONT
8:31p
8h 16m
1 stop
Airports
Origin

Ontario
$166
Destination

Chicago
$166