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

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 Chicago O'Hare International to Ontario

(Round-trip)
Depart: Mon Mar 20 2017 Return: Wed Apr 5 2017 Trip spans 17 days
Major Airline
Major Airline
ORD
7:40a
ONT
3:52a
20h 12m
1 stop
ONT
3:45a
ORD
1:41p
9h 56m
1 stop
Depart: Tue Mar 21 2017 Return: Wed Apr 5 2017 Trip spans 16 days
United
United
ORD
12:20p
ONT
10:06p
9h 46m
1 stop
ONT
9:25a
ORD
5:21p
7h 56m
1 stop
Depart: Wed May 3 2017 Return: Fri May 5 2017 Trip spans 3 days
American Airlines
American Airlines
ORD
1:00a
ONT
9:41a
8h 41m
1 stop
ONT
3:35p
ORD
12:06a
8h 31m
1 stop
Depart: Tue Aug 29 2017 Return: Sat Sep 9 2017 Trip spans 12 days
Delta
Delta
ORD
2:45p
ONT
8:44p
5h 59m
1 stop
ONT
2:00a
ORD
7:53a
5h 53m
1 stop
Depart: Tue May 2 2017 Return: Wed May 3 2017 Trip spans 2 days
United
United
ORD
3:15p
ONT
10:06p
6h 51m
1 stop
ONT
5:05p
ORD
11:13p
6h 08m
1 stop
Depart: Thu May 4 2017 Return: Sat May 6 2017 Trip spans 3 days
American Airlines
American Airlines
ORD
1:00a
ONT
7:01a
6h 01m
1 stop
ONT
12:30p
ORD
6:20p
5h 50m
1 stop
Depart: Sat May 6 2017 Return: Mon May 8 2017 Trip spans 3 days
American Airlines
American Airlines
ORD
9:45a
ONT
4:36p
6h 51m
1 stop
ONT
3:35p
ORD
12:06a
8h 31m
1 stop
Depart: Thu Aug 10 2017 Return: Mon Aug 14 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
ORD
2:00a
ONT
8:18p
18h 18m
1 stop
ONT
1:15p
ORD
12:32a
11h 17m
1 stop
Depart: Tue Mar 14 2017 Return: Tue Mar 21 2017 Trip spans 8 days
United
United
ORD
12:20p
ONT
10:06p
9h 46m
1 stop
ONT
9:30a
ORD
3:10p
5h 40m
1 stop
Depart: Sun May 7 2017 Return: Tue May 9 2017 Trip spans 3 days
American Airlines
American Airlines
ORD
1:00a
ONT
7:01a
6h 01m
1 stop
ONT
3:35p
ORD
12:06a
8h 31m
1 stop
Depart: Mon Mar 6 2017 Return: Tue Mar 14 2017 Trip spans 8 days
Major Airline
Major Airline
ORD
10:00p
ONT
6:44a
8h 44m
1 stop
ONT
9:30a
ORD
8:29p
10h 59m
1 stop
Depart: Thu Apr 20 2017 Return: Tue Apr 25 2017 Trip spans 6 days
Delta
Delta
ORD
2:50p
ONT
8:49p
5h 59m
1 stop
ONT
2:00a
ORD
12:04p
10h 04m
2 stops
Depart: Sat Apr 29 2017 Return: Tue May 2 2017 Trip spans 4 days
United
United
ORD
3:15p
ONT
10:06p
6h 51m
1 stop
ONT
5:05p
ORD
11:13p
6h 08m
1 stop
Depart: Sun Apr 30 2017 Return: Sat May 6 2017 Trip spans 7 days
American Airlines
American Airlines
ORD
1:00a
ONT
7:01a
6h 01m
1 stop
ONT
10:30a
ORD
6:35p
8h 05m
1 stop
Depart: Sat Apr 15 2017 Return: Wed Apr 19 2017 Trip spans 5 days
Delta
Delta
ORD
6:58a
ONT
7:02p
12h 04m
2 stops
ONT
2:00a
ORD
12:04p
10h 04m
2 stops
Depart: Fri May 5 2017 Return: Sat May 6 2017 Trip spans 2 days
American Airlines
American Airlines
ORD
1:00a
ONT
7:01a
6h 01m
1 stop
ONT
12:30p
ORD
6:20p
5h 50m
1 stop
Depart: Mon Mar 27 2017 Return: Tue Apr 4 2017 Trip spans 9 days
Major Airline
Major Airline
ORD
10:00p
ONT
10:31a
12h 31m
1 stop
ONT
3:45a
ORD
1:41p
9h 56m
1 stop
Depart: Tue Apr 18 2017 Return: Tue Apr 25 2017 Trip spans 8 days
United
United
ORD
3:15p
ONT
10:06p
6h 51m
1 stop
ONT
5:05p
ORD
11:13p
6h 08m
1 stop
Depart: Wed Aug 30 2017 Return: Sat Sep 9 2017 Trip spans 11 days
Delta
Delta
ORD
2:45p
ONT
8:44p
5h 59m
1 stop
ONT
2:00a
ORD
7:53a
5h 53m
1 stop
Depart: Wed May 31 2017 Return: Tue Jun 6 2017 Trip spans 7 days
Major Airline
Major Airline
ORD
10:00p
ONT
4:15p
18h 15m
1 stop
ONT
9:15a
ORD
8:32p
11h 17m
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?
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

Chicago
$206
Destination

Ontario
$206