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: Fri Jun 2 2017 Return: Sat Jun 3 2017 Trip spans 2 days
United
United
ONT
3:10p
ORD
11:17p
8h 07m
1 stop
ORD
8:48a
ONT
5:36p
8h 48m
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: Mon Oct 16 2017 Return: Tue Oct 24 2017 Trip spans 9 days
Major Airline
Major Airline
ONT
10:05p
ORD
8:06a
10h 01m
1 stop
ORD
2:18a
ONT
10:11a
7h 53m
1 stop
Depart: Fri Oct 27 2017 Return: Tue Oct 31 2017 Trip spans 5 days
Delta
Delta
ONT
2:00a
ORD
7:51a
5h 51m
1 stop
ORD
2:45p
ONT
8:44p
5h 59m
1 stop
Depart: Sat Jun 3 2017 Return: Wed Jun 7 2017 Trip spans 5 days
United
United
ONT
8:40a
ORD
3:22p
6h 42m
1 stop
ORD
10:00a
ONT
5:36p
7h 36m
1 stop
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: Tue Oct 3 2017 Return: Tue Oct 10 2017 Trip spans 8 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 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: 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: Mon Aug 28 2017 Return: Tue Aug 29 2017 Trip spans 2 days
Major Airline
Major Airline
ONT
9:15a
ORD
8:40p
11h 25m
1 stop
ORD
10:00p
ONT
10:17a
12h 17m
1 stop
Depart: Wed May 31 2017 Return: Wed Jun 7 2017 Trip spans 8 days
United
United
ONT
12:55p
ORD
7:38p
6h 43m
1 stop
ORD
10:00a
ONT
5:36p
7h 36m
1 stop
Depart: Sat Oct 21 2017 Return: Tue Oct 24 2017 Trip spans 4 days
American Airlines
American Airlines
ONT
8:45a
ORD
3:00p
6h 15m
1 stop
ORD
3:10a
ONT
9:46a
6h 36m
1 stop
Depart: Wed Sep 13 2017 Return: Mon Sep 18 2017 Trip spans 6 days
Delta
Delta
ONT
6:20a
ORD
12:03p
5h 43m
1 stop
ORD
2:45p
ONT
8:44p
5h 59m
1 stop
Depart: Mon Jun 5 2017 Return: Wed Jun 7 2017 Trip spans 3 days
United
United
ONT
9:34a
ORD
5:42p
8h 08m
1 stop
ORD
10:00a
ONT
5:36p
7h 36m
1 stop
Depart: Tue Oct 24 2017 Return: Sat Oct 28 2017 Trip spans 5 days
American Airlines
American Airlines
ONT
12:30p
ORD
5:59p
5h 29m
1 stop
ORD
2:34p
ONT
9:08p
6h 34m
1 stop
Depart: Sat Aug 5 2017 Return: Wed Aug 9 2017 Trip spans 5 days
Major Airline
Major Airline
ONT
9:15a
ORD
8:32p
11h 17m
1 stop
ORD
7:45a
ONT
4:18p
8h 33m
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: Wed Oct 25 2017 Return: Sat Oct 28 2017 Trip spans 4 days
American Airlines
American Airlines
ONT
12:30p
ORD
5:59p
5h 29m
1 stop
ORD
2:34p
ONT
9:08p
6h 34m
1 stop
Depart: Tue Aug 8 2017 Return: Fri Aug 11 2017 Trip spans 4 days
Major Airline
Major Airline
ONT
9:15a
ORD
1:34p
28h 19m
2 stops
ORD
9:15a
ONT
4:20a
19h 05m
2 stops
Depart: Wed Sep 6 2017 Return: Sat Sep 9 2017 Trip spans 4 days
United
United
ONT
5:25p
ORD
12:00a
6h 35m
1 stop
ORD
3:30a
ONT
10:38a
7h 08m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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Airports
Origin

Ontario
$214
Destination

Chicago
$214