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: Sat Oct 24 2015 Return: Tue Oct 27 2015 Trip spans 4 days
United
United
ONT
1:05a
ORD
8:49a
7h 44m
1 stop
ORD
2:28p
ONT
10:35p
8h 07m
1 stop
Depart: Tue Oct 27 2015 Return: Sat Oct 31 2015 Trip spans 5 days
United
United
ONT
11:33a
ORD
6:58p
7h 25m
1 stop
ORD
1:05a
ONT
8:50a
7h 45m
1 stop
Depart: Tue Nov 3 2015 Return: Wed Nov 4 2015 Trip spans 2 days
United
United
ONT
10:33a
ORD
5:11p
6h 38m
1 stop
ORD
2:20p
ONT
9:35p
7h 15m
1 stop
Depart: Wed Nov 4 2015 Return: Sat Nov 7 2015 Trip spans 4 days
United
United
ONT
10:33a
ORD
6:46p
8h 13m
1 stop
ORD
8:47a
ONT
5:37p
8h 50m
1 stop
Depart: Sat Nov 7 2015 Return: Wed Nov 11 2015 Trip spans 5 days
United
United
ONT
12:30a
ORD
9:53a
9h 23m
1 stop
ORD
1:28p
ONT
9:35p
8h 07m
1 stop
Depart: Tue Nov 10 2015 Return: Wed Nov 11 2015 Trip spans 2 days
United
United
ONT
4:07p
ORD
11:32p
7h 25m
1 stop
ORD
1:28p
ONT
9:35p
8h 07m
1 stop
Depart: Wed Nov 11 2015 Return: Sat Nov 14 2015 Trip spans 4 days
United
United
ONT
10:33a
ORD
5:58p
7h 25m
1 stop
ORD
7:35a
ONT
5:37p
10h 02m
1 stop
Depart: Wed Sep 23 2015 Return: Tue Sep 29 2015 Trip spans 7 days
United
United
ONT
1:05p
ORD
7:29p
6h 24m
1 stop
ORD
3:04a
ONT
10:09a
7h 05m
1 stop
Depart: Mon Nov 9 2015 Return: Tue Nov 10 2015 Trip spans 2 days
United
United
ONT
2:02p
ORD
9:40p
7h 38m
1 stop
ORD
2:02a
ONT
12:01p
9h 59m
1 stop
Depart: Fri Oct 2 2015 Return: Tue Oct 6 2015 Trip spans 5 days
United
United
ONT
2:01p
ORD
10:44p
8h 43m
1 stop
ORD
1:15a
ONT
8:43a
7h 28m
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: Mon Nov 2 2015 Return: Tue Nov 10 2015 Trip spans 9 days
United
United
ONT
2:02p
ORD
10:20p
8h 18m
1 stop
ORD
1:28p
ONT
9:35p
8h 07m
1 stop
Depart: Fri Nov 6 2015 Return: Sat Nov 7 2015 Trip spans 2 days
United
United
ONT
1:58p
ORD
11:32p
9h 34m
1 stop
ORD
8:47a
ONT
5:37p
8h 50m
1 stop
Depart: Mon Sep 21 2015 Return: Tue Sep 29 2015 Trip spans 9 days
United
United
ONT
3:01p
ORD
12:29a
9h 28m
1 stop
ORD
3:04a
ONT
10:09a
7h 05m
1 stop
Depart: Tue Sep 22 2015 Return: Tue Sep 29 2015 Trip spans 8 days
United
United
ONT
4:46a
ORD
1:51p
9h 05m
1 stop
ORD
8:00a
ONT
4:30p
8h 30m
1 stop
Depart: Tue Sep 29 2015 Return: Wed Sep 30 2015 Trip spans 2 days
United
United
ONT
4:46a
ORD
12:22p
7h 36m
1 stop
ORD
2:00a
ONT
10:09a
8h 09m
1 stop
Depart: Sat Sep 12 2015 Return: Tue Sep 22 2015 Trip spans 11 days
American Airlines
American Airlines
ONT
6:57a
ORD
2:48p
7h 51m
1 stop
ORD
1:00a
ONT
8:12a
7h 12m
1 stop
Depart: Mon Oct 5 2015 Return: Tue Oct 13 2015 Trip spans 9 days
Delta
Delta
ONT
2:15a
ORD
9:27a
7h 12m
1 stop
ORD
12:15p
ONT
8:34p
8h 19m
1 stop
Airports
Origin

Ontario
$166
Destination

Chicago
$166