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

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
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 Mar 1 2016 Return: Wed Mar 2 2016 Trip spans 2 days
United
United
ONT
1:44p
ORD
10:43p
8h 59m
1 stop
ORD
3:00a
ONT
11:18a
8h 18m
1 stop
Depart: Sat Feb 27 2016 Return: Tue Mar 1 2016 Trip spans 4 days
United
United
ONT
3:28p
ORD
10:43p
7h 15m
1 stop
ORD
12:30p
ONT
8:36p
8h 06m
1 stop
Depart: Wed Mar 2 2016 Return: Tue Mar 8 2016 Trip spans 7 days
United
United
ONT
3:28p
ORD
9:38p
6h 10m
1 stop
ORD
2:23p
ONT
8:27p
6h 04m
1 stop
Depart: Wed Apr 27 2016 Return: Sat Apr 30 2016 Trip spans 4 days
United
United
ONT
11:29a
ORD
6:15p
6h 46m
1 stop
ORD
9:26a
ONT
5:29p
8h 03m
1 stop
Depart: Tue Mar 15 2016 Return: Tue Mar 22 2016 Trip spans 8 days
United
United
ONT
11:02a
ORD
6:26p
7h 24m
1 stop
ORD
2:00a
ONT
10:19a
8h 19m
1 stop
Depart: Sat Apr 16 2016 Return: Wed Apr 20 2016 Trip spans 5 days
United
United
ONT
11:29a
ORD
7:30p
8h 01m
1 stop
ORD
2:55a
ONT
10:06a
7h 11m
1 stop
Depart: Wed Feb 17 2016 Return: Sat Feb 27 2016 Trip spans 11 days
United
United
ONT
7:37a
ORD
2:21p
6h 44m
1 stop
ORD
1:40a
ONT
11:23a
9h 43m
1 stop
Depart: Tue Feb 23 2016 Return: Tue Mar 1 2016 Trip spans 8 days
United
United
ONT
3:28p
ORD
11:31p
8h 03m
1 stop
ORD
2:28p
ONT
8:36p
6h 08m
1 stop
Depart: Wed Feb 24 2016 Return: Tue Mar 1 2016 Trip spans 7 days
United
United
ONT
1:00a
ORD
8:03a
7h 03m
1 stop
ORD
12:30p
ONT
8:36p
8h 06m
1 stop
Depart: Mon May 9 2016 Return: Tue May 10 2016 Trip spans 2 days
United
United
ONT
3:42p
ORD
11:02p
7h 20m
1 stop
ORD
10:30a
ONT
6:16p
7h 46m
1 stop
Depart: Fri Mar 4 2016 Return: Tue Mar 8 2016 Trip spans 5 days
United
United
ONT
3:26p
ORD
9:56p
6h 30m
1 stop
ORD
2:23p
ONT
8:27p
6h 04m
1 stop
Depart: Fri May 6 2016 Return: Sat May 7 2016 Trip spans 2 days
United
United
ONT
1:01p
ORD
7:09p
6h 08m
1 stop
ORD
5:55a
ONT
2:31p
8h 36m
1 stop
Depart: Mon Feb 29 2016 Return: Sun Mar 13 2016 Trip spans 14 days
United
United
ONT
1:44p
ORD
10:49p
9h 05m
1 stop
ORD
1:51a
ONT
12:23p
9h 32m
1 stop
Depart: Tue Apr 5 2016 Return: Wed Apr 6 2016 Trip spans 2 days
United
United
ONT
3:59p
ORD
12:25a
8h 26m
1 stop
ORD
5:39a
ONT
2:16p
8h 37m
1 stop
Depart: Tue Mar 8 2016 Return: Tue Mar 15 2016 Trip spans 7 days
United
United
ONT
10:02a
ORD
4:14p
6h 12m
1 stop
ORD
3:23p
ONT
9:31p
6h 08m
1 stop
Depart: Wed Mar 9 2016 Return: Mon Mar 14 2016 Trip spans 5 days
United
United
ONT
10:02a
ORD
5:26p
7h 24m
1 stop
ORD
1:05p
ONT
9:55p
8h 50m
1 stop
Depart: Fri Feb 26 2016 Return: Tue Mar 1 2016 Trip spans 5 days
United
United
ONT
3:28p
ORD
10:45p
7h 17m
1 stop
ORD
8:25a
ONT
3:14p
6h 49m
1 stop
Depart: Sun Feb 14 2016 Return: Tue Mar 1 2016 Trip spans 17 days
Delta
Delta
ONT
1:10a
ORD
8:27a
7h 17m
1 stop
ORD
11:15a
ONT
7:29p
8h 14m
1 stop
Depart: Sun Mar 6 2016 Return: Mon Mar 7 2016 Trip spans 2 days
American Airlines
American Airlines
ONT
4:30p
ORD
11:02p
6h 32m
1 stop
ORD
1:25p
ONT
8:07p
6h 42m
1 stop
Depart: Thu Apr 21 2016 Return: Tue Apr 26 2016 Trip spans 6 days
Alaska Airlines
Alaska Airlines
ONT
2:00a
ORD
12:35p
10h 35m
1 stop
ORD
4:00a
ONT
2:47p
10h 47m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Why aren’t prices accurate 100% of the time?
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Airports
Origin

Ontario
$172
Destination

Chicago
$172