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: Sat Oct 15 2016 Return: Wed Oct 19 2016 Trip spans 5 days
United
United
ONT
8:42a
ORD
3:35p
6h 53m
1 stop
ORD
10:30a
ONT
6:44p
8h 14m
1 stop
Depart: Sat Oct 29 2016 Return: Fri Nov 4 2016 Trip spans 7 days
Major Airline
Major Airline
ONT
3:05a
ORD
1:16p
10h 11m
1 stop
ORD
10:00p
ONT
5:06p
19h 06m
1 stop
Depart: Tue Nov 8 2016 Return: Sun Nov 13 2016 Trip spans 6 days
American Airlines
American Airlines
ONT
11:30a
ORD
5:12p
5h 42m
1 stop
ORD
12:00a
ONT
6:04a
6h 04m
1 stop
Depart: Sun Dec 18 2016 Return: Fri Jan 6 2017 Trip spans 20 days
Delta
Delta
ONT
1:10a
ORD
8:27a
7h 17m
1 stop
ORD
1:30p
ONT
7:40p
6h 10m
1 stop
Depart: Tue Oct 18 2016 Return: Sat Oct 22 2016 Trip spans 5 days
United
United
ONT
5:24p
ORD
11:15p
5h 51m
1 stop
ORD
4:50a
ONT
10:49a
5h 59m
1 stop
Depart: Mon Oct 3 2016 Return: Wed Oct 12 2016 Trip spans 10 days
Alaska Airlines
Alaska Airlines
ONT
7:05a
ORD
5:16p
10h 11m
1 stop
ORD
10:40a
ONT
9:06p
10h 26m
1 stop
Depart: Thu Oct 27 2016 Return: Sun Oct 30 2016 Trip spans 4 days
Major Airline
Major Airline
ONT
10:00p
ORD
8:41p
22h 41m
1 stop
ORD
10:00p
ONT
11:05a
13h 05m
1 stop
Depart: Sat Oct 22 2016 Return: Tue Oct 25 2016 Trip spans 4 days
United
United
ONT
1:45a
ORD
8:43a
6h 58m
1 stop
ORD
2:05a
ONT
10:12a
8h 07m
1 stop
Depart: Wed Oct 26 2016 Return: Sat Oct 29 2016 Trip spans 4 days
United
United
ONT
8:42a
ORD
3:35p
6h 53m
1 stop
ORD
3:20p
ONT
9:59p
6h 39m
1 stop
Depart: Sat Oct 8 2016 Return: Sun Oct 9 2016 Trip spans 2 days
American Airlines
American Airlines
ONT
12:35p
ORD
6:32p
5h 57m
1 stop
ORD
1:00a
ONT
7:08a
6h 08m
1 stop
Depart: Tue Nov 1 2016 Return: Sat Nov 5 2016 Trip spans 5 days
United
United
ONT
6:25a
ORD
3:27p
9h 02m
1 stop
ORD
11:50a
ONT
9:59p
10h 09m
1 stop
Depart: Tue Nov 15 2016 Return: Wed Nov 16 2016 Trip spans 2 days
Major Airline
Major Airline
ONT
8:15a
ORD
6:45p
10h 30m
1 stop
ORD
8:00p
ONT
2:50p
18h 50m
1 stop
Depart: Fri Mar 3 2017 Return: Mon Mar 6 2017 Trip spans 4 days
Delta
Delta
ONT
1:00a
ORD
8:21a
7h 21m
1 stop
ORD
11:40a
ONT
7:40p
8h 00m
1 stop
Depart: Wed Nov 2 2016 Return: Tue Nov 8 2016 Trip spans 7 days
American Airlines
American Airlines
ONT
5:55a
ORD
11:45a
5h 50m
1 stop
ORD
12:00a
ONT
6:04a
6h 04m
1 stop
Depart: Sat Nov 5 2016 Return: Sat Nov 12 2016 Trip spans 8 days
United
United
ONT
1:45a
ORD
8:41a
6h 56m
1 stop
ORD
5:50a
ONT
1:52p
8h 02m
1 stop
Depart: Thu Jan 5 2017 Return: Mon Jan 9 2017 Trip spans 5 days
Delta
Delta
ONT
1:00a
ORD
11:48a
10h 48m
2 stops
ORD
1:30p
ONT
7:40p
6h 10m
1 stop
Depart: Fri Nov 4 2016 Return: Sat Nov 5 2016 Trip spans 2 days
American Airlines
American Airlines
ONT
10:25a
ORD
4:53p
6h 28m
1 stop
ORD
1:15p
ONT
7:38p
6h 23m
1 stop
Depart: Wed Nov 9 2016 Return: Tue Nov 15 2016 Trip spans 7 days
United
United
ONT
5:25a
ORD
1:03p
7h 38m
1 stop
ORD
7:15a
ONT
4:47p
9h 32m
1 stop
Depart: Mon Oct 10 2016 Return: Fri Oct 14 2016 Trip spans 5 days
Major Airline
Major Airline
ONT
10:00p
ORD
1:16p
15h 16m
2 stops
ORD
10:00p
ONT
11:05a
13h 05m
2 stops
Depart: Wed Feb 1 2017 Return: Sun Feb 5 2017 Trip spans 5 days
American Airlines
American Airlines
ONT
1:05a
ORD
7:39a
6h 34m
1 stop
ORD
10:00a
ONT
3:44p
5h 44m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

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

If you have more questions or if you have a bad price to report to us,
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^ The fares displayed in KAYAK ads found on other sites include all taxes and fees for economy class travel and were found by KAYAK users in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.
Airports
Origin

Ontario
$184
Destination

Chicago
$184