Find Cheap 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 Jun 6 2017 Return: Wed Jun 7 2017 Trip spans 2 days
United
United
ONT
4:10p
ORD
11:17p
7h 07m
1 stop
ORD
10:00a
ONT
5:36p
7h 36m
1 stop
Depart: Fri Aug 25 2017 Return: Sat Sep 16 2017 Trip spans 23 days
American Airlines
American Airlines
ONT
8:59p
ORD
3:23a
6h 24m
1 stop
ORD
11:00a
ONT
7:39p
8h 39m
1 stop
Depart: Sat Aug 26 2017 Return: Sat Sep 16 2017 Trip spans 22 days
Major Airline
Major Airline
ONT
9:15a
ORD
8:40p
11h 25m
1 stop
ORD
9:15a
ONT
4:45a
19h 30m
1 stop
Depart: Thu Nov 9 2017 Return: Mon Nov 13 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
ONT
7:00a
ORD
4:37p
9h 37m
1 stop
ORD
5:00a
ONT
1:30p
8h 30m
1 stop
Depart: Wed Nov 1 2017 Return: Sun Nov 5 2017 Trip spans 5 days
Delta
Delta
ONT
6:20a
ORD
12:03p
5h 43m
1 stop
ORD
1:45p
ONT
7:44p
5h 59m
1 stop
Depart: Mon Jun 5 2017 Return: Wed Jun 7 2017 Trip spans 3 days
United
United
ONT
8:40a
ORD
5:49p
9h 09m
1 stop
ORD
10:00a
ONT
5:36p
7h 36m
1 stop
Depart: Wed Sep 6 2017 Return: Sat Sep 9 2017 Trip spans 4 days
American Airlines
American Airlines
ONT
3:30p
ORD
12:10a
8h 40m
1 stop
ORD
9:15a
ONT
4:28p
7h 13m
1 stop
Depart: Tue Aug 22 2017 Return: Wed Aug 30 2017 Trip spans 9 days
United
United
ONT
8:45a
ORD
5:59p
9h 14m
1 stop
ORD
10:05a
ONT
7:09p
9h 04m
1 stop
Depart: Sat Sep 16 2017 Return: Tue Sep 26 2017 Trip spans 11 days
American Airlines
American Airlines
ONT
10:15a
ORD
4:52p
6h 37m
1 stop
ORD
3:10a
ONT
9:46a
6h 36m
1 stop
Depart: Sun Aug 27 2017 Return: Tue Aug 29 2017 Trip spans 3 days
Major Airline
Major Airline
ONT
9:15a
ORD
8:40p
11h 25m
1 stop
ORD
9:15a
ONT
4:45a
19h 30m
1 stop
Depart: Sat Sep 2 2017 Return: Sun Sep 3 2017 Trip spans 2 days
United
United
ONT
6:44a
ORD
2:45p
8h 01m
1 stop
ORD
3:20p
ONT
10:09p
6h 49m
1 stop
Depart: Tue Oct 3 2017 Return: Sat Oct 7 2017 Trip spans 5 days
American Airlines
American Airlines
ONT
12:30p
ORD
5:59p
5h 29m
1 stop
ORD
3:10a
ONT
9:46a
6h 36m
1 stop
Depart: Sat Sep 9 2017 Return: Tue Sep 12 2017 Trip spans 4 days
United
United
ONT
5:25p
ORD
11:20p
5h 55m
1 stop
ORD
10:30a
ONT
6:38p
8h 08m
1 stop
Depart: Wed Oct 4 2017 Return: Sat Oct 7 2017 Trip spans 4 days
American Airlines
American Airlines
ONT
12:30p
ORD
5:59p
5h 29m
1 stop
ORD
3:10a
ONT
9:46a
6h 36m
1 stop
Depart: Fri Jun 23 2017 Return: Fri Jul 7 2017 Trip spans 15 days
Major Airline
Major Airline
ONT
10:20p
ORD
1:31p
15h 11m
2 stops
ORD
10:00p
ONT
4:16p
18h 16m
2 stops
Depart: Tue Sep 19 2017 Return: Tue Oct 3 2017 Trip spans 15 days
United
United
ONT
5:10a
ORD
1:32p
8h 22m
1 stop
ORD
10:30a
ONT
6:38p
8h 08m
1 stop
Depart: Sat Oct 7 2017 Return: Tue Oct 10 2017 Trip spans 4 days
American Airlines
American Airlines
ONT
12:30p
ORD
5:59p
5h 29m
1 stop
ORD
3:10a
ONT
9:46a
6h 36m
1 stop
Depart: Tue Sep 26 2017 Return: Tue Oct 3 2017 Trip spans 8 days
United
United
ONT
3:15p
ORD
11:20p
8h 05m
1 stop
ORD
10:30a
ONT
6:38p
8h 08m
1 stop
Depart: Tue Oct 17 2017 Return: Sat Oct 21 2017 Trip spans 5 days
American Airlines
American Airlines
ONT
12:30p
ORD
5:59p
5h 29m
1 stop
ORD
3:10a
ONT
9:46a
6h 36m
1 stop
Depart: Wed Sep 27 2017 Return: Tue Oct 3 2017 Trip spans 7 days
United
United
ONT
4:00p
ORD
12:00a
8h 00m
1 stop
ORD
10:30a
ONT
6:38p
8h 08m
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
$214
Destination

Chicago
$214