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 Aug 22 2017 Return: Thu Aug 24 2017 Trip spans 3 days
United
United
ONT
5:15a
ORD
11:54a
6h 39m
1 stop
ORD
3:20p
ONT
10:09p
6h 49m
1 stop
Depart: Sat Aug 26 2017 Return: Tue Aug 29 2017 Trip spans 4 days
American Airlines
American Airlines
ONT
8:45a
ORD
2:58p
6h 13m
1 stop
ORD
1:00a
ONT
9:43a
8h 43m
1 stop
Depart: Sat Oct 28 2017 Return: Tue Oct 31 2017 Trip spans 4 days
Delta
Delta
ONT
2:00a
ORD
7:45a
5h 45m
1 stop
ORD
2:45p
ONT
8:44p
5h 59m
1 stop
Depart: Mon Oct 16 2017 Return: Wed Oct 18 2017 Trip spans 3 days
Frontier
Frontier
ONT
7:55a
ORD
4:29a
20h 34m
1 stop
ORD
2:30a
ONT
8:59a
6h 29m
1 stop
Depart: Mon Aug 28 2017 Return: Wed Sep 6 2017 Trip spans 10 days
United
United
ONT
5:40p
ORD
12:43a
7h 03m
1 stop
ORD
10:20a
ONT
7:09p
8h 49m
1 stop
Depart: Tue Oct 3 2017 Return: Tue Oct 17 2017 Trip spans 15 days
American Airlines
American Airlines
ONT
10:14a
ORD
4:54p
6h 40m
1 stop
ORD
2:25p
ONT
9:10p
6h 45m
1 stop
Depart: Tue Aug 29 2017 Return: Wed Sep 6 2017 Trip spans 9 days
United
United
ONT
4:15p
ORD
11:19p
7h 04m
1 stop
ORD
1:35p
ONT
10:26p
8h 51m
1 stop
Depart: Tue Oct 10 2017 Return: Sat Oct 14 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
ONT
7:40a
ORD
5:19p
9h 39m
1 stop
ORD
3:06p
ONT
8:00a
16h 54m
1 stop
Depart: Tue Sep 26 2017 Return: Sat Sep 30 2017 Trip spans 5 days
American Airlines
American Airlines
ONT
10:14a
ORD
4:54p
6h 40m
1 stop
ORD
4:45a
ONT
4:26p
11h 41m
2 stops
Depart: Sat Sep 2 2017 Return: Wed Sep 6 2017 Trip spans 5 days
United
United
ONT
1:35a
ORD
7:56a
6h 21m
1 stop
ORD
10:20a
ONT
7:09p
8h 49m
1 stop
Depart: Sun Oct 22 2017 Return: Tue Oct 24 2017 Trip spans 3 days
Frontier
Frontier
ONT
3:00p
ORD
12:16p
21h 16m
1 stop
ORD
1:45p
ONT
8:59a
19h 14m
1 stop
Depart: Fri Aug 18 2017 Return: Thu Aug 24 2017 Trip spans 7 days
American Airlines
American Airlines
ONT
7:59p
ORD
11:56p
3h 57m
nonstop
ORD
1:00a
ONT
7:05a
6h 05m
1 stop
Depart: Sun Sep 24 2017 Return: Tue Sep 26 2017 Trip spans 3 days
Delta
Delta
ONT
2:00a
ORD
8:01a
6h 01m
1 stop
ORD
2:55p
ONT
9:12p
6h 17m
1 stop
Depart: Tue Sep 5 2017 Return: Thu Sep 7 2017 Trip spans 3 days
United
United
ONT
5:40p
ORD
12:31a
6h 51m
1 stop
ORD
3:20p
ONT
10:26p
7h 06m
1 stop
Depart: Sat Aug 19 2017 Return: Thu Aug 24 2017 Trip spans 6 days
American Airlines
American Airlines
ONT
7:59p
ORD
11:56p
3h 57m
nonstop
ORD
1:00a
ONT
7:05a
6h 05m
1 stop
Depart: Sun Oct 1 2017 Return: Tue Oct 3 2017 Trip spans 3 days
Delta
Delta
ONT
2:00a
ORD
7:51a
5h 51m
1 stop
ORD
2:45p
ONT
8:44p
5h 59m
1 stop
Depart: Thu Oct 19 2017 Return: Sun Oct 22 2017 Trip spans 4 days
Frontier
Frontier
ONT
3:00p
ORD
4:29a
13h 29m
1 stop
ORD
2:30a
ONT
4:14p
13h 44m
1 stop
Depart: Wed Sep 6 2017 Return: Sat Sep 9 2017 Trip spans 4 days
United
United
ONT
9:35a
ORD
3:25p
5h 50m
1 stop
ORD
11:53a
ONT
7:09p
7h 16m
1 stop
Depart: Sun Aug 20 2017 Return: Thu Aug 24 2017 Trip spans 5 days
American Airlines
American Airlines
ONT
7:59p
ORD
11:56p
3h 57m
nonstop
ORD
1:00a
ONT
7:05a
6h 05m
1 stop
Depart: Thu Sep 7 2017 Return: Sat Sep 9 2017 Trip spans 3 days
United
United
ONT
9:35a
ORD
5:43p
8h 08m
1 stop
ORD
3:32a
ONT
10:45a
7h 13m
1 stop
Direct flights ONT to ORD on American Airlines
Flight # Depart ONT Arrive ORD Sun Mon Tue Wed Thu Fri Sat Valid Between
2744 11:59 pm 5:56 am Jul 26 - Aug 21
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Ontario
$226
Destination

Chicago
$226