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Find Flight Deals from Chicago to Ontario (CHI - ONT)

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Chicago to Ontario

(Round-trip)
Depart: Wed Jan 7 2015 Return: Sat Jan 10 2015 Trip spans 4 days
US Airways
US Airways
ORD
12:05p
ONT
6:11p
6h 06m
1 stop
ONT
11:40a
ORD
5:02p
5h 22m
1 stop
Depart: Sat Jan 10 2015 Return: Wed Jan 14 2015 Trip spans 5 days
American Airlines
American Airlines
ORD
12:37p
ONT
8:21p
7h 44m
1 stop
ONT
7:30a
ORD
3:54p
8h 24m
1 stop
Depart: Tue Jan 13 2015 Return: Sat Jan 17 2015 Trip spans 5 days
United
United
ORD
3:15a
ONT
11:21a
8h 06m
1 stop
ONT
12:30a
ORD
9:19a
8h 49m
1 stop
Depart: Tue Feb 3 2015 Return: Tue Feb 10 2015 Trip spans 8 days
Delta
Delta
ORD
12:35p
ONT
6:49p
6h 14m
1 stop
ONT
1:15a
ORD
8:27a
7h 12m
1 stop
Depart: Wed Jan 14 2015 Return: Wed Jan 21 2015 Trip spans 8 days
United
United
ORD
2:01a
ONT
11:21a
9h 20m
1 stop
ONT
12:30a
ORD
7:16a
6h 46m
1 stop
Depart: Sat Jan 17 2015 Return: Tue Jan 20 2015 Trip spans 4 days
US Airways
US Airways
ORD
2:00a
ONT
8:34a
6h 34m
1 stop
ONT
7:40a
ORD
1:36p
5h 56m
1 stop
Depart: Tue Jan 20 2015 Return: Sat Jan 24 2015 Trip spans 5 days
United
United
ORD
5:39a
ONT
2:43p
9h 04m
1 stop
ONT
1:13p
ORD
10:38p
9h 25m
1 stop
Depart: Sat Jan 24 2015 Return: Wed Jan 28 2015 Trip spans 5 days
United
United
ORD
1:03p
ONT
8:55p
7h 52m
1 stop
ONT
3:00p
ORD
9:41p
6h 41m
1 stop
Depart: Wed Feb 4 2015 Return: Sat Feb 7 2015 Trip spans 4 days
United
United
ORD
4:46a
ONT
11:21a
6h 35m
1 stop
ONT
1:00a
ORD
6:43a
5h 43m
1 stop
Depart: Sat Feb 7 2015 Return: Tue Feb 10 2015 Trip spans 4 days
US Airways
US Airways
ORD
2:00a
ONT
8:34a
6h 34m
1 stop
ONT
1:30a
ORD
7:46a
6h 16m
1 stop
Depart: Wed Feb 11 2015 Return: Tue Feb 17 2015 Trip spans 7 days
United
United
ORD
2:01a
ONT
9:00a
6h 59m
1 stop
ONT
12:35a
ORD
7:12a
6h 37m
1 stop
Depart: Sat Feb 14 2015 Return: Tue Feb 17 2015 Trip spans 4 days
United
United
ORD
7:17a
ONT
2:00p
6h 43m
1 stop
ONT
12:35a
ORD
7:12a
6h 37m
1 stop
Depart: Tue Feb 17 2015 Return: Tue Feb 24 2015 Trip spans 8 days
US Airways
US Airways
ORD
12:00a
ONT
6:04a
6h 04m
1 stop
ONT
1:30a
ORD
7:46a
6h 16m
1 stop
Depart: Tue Feb 24 2015 Return: Tue Mar 3 2015 Trip spans 8 days
United
United
ORD
4:56a
ONT
12:20p
7h 24m
1 stop
ONT
4:35a
ORD
12:10p
7h 35m
1 stop
Depart: Tue Jan 6 2015 Return: Sat Jan 10 2015 Trip spans 5 days
US Airways
US Airways
ORD
12:00a
ONT
6:04a
6h 04m
1 stop
ONT
1:30a
ORD
7:46a
6h 16m
1 stop
Depart: Thu Jan 8 2015 Return: Tue Jan 13 2015 Trip spans 6 days
US Airways
US Airways
ORD
12:00a
ONT
6:04a
6h 04m
1 stop
ONT
5:00a
ORD
10:56a
5h 56m
1 stop
Depart: Fri Jan 9 2015 Return: Wed Jan 14 2015 Trip spans 6 days
US Airways
US Airways
ORD
12:00a
ONT
8:34a
8h 34m
1 stop
ONT
5:00a
ORD
10:56a
5h 56m
1 stop
Depart: Thu Jan 15 2015 Return: Sat Jan 17 2015 Trip spans 3 days
US Airways
US Airways
ORD
12:00a
ONT
6:04a
6h 04m
1 stop
ONT
1:30a
ORD
7:46a
6h 16m
1 stop
Depart: Sun Jan 18 2015 Return: Tue Jan 20 2015 Trip spans 3 days
US Airways
US Airways
ORD
12:00a
ONT
8:34a
8h 34m
1 stop
ONT
1:30a
ORD
7:46a
6h 16m
1 stop
Depart: Fri Feb 27 2015 Return: Tue Mar 3 2015 Trip spans 5 days
Multiple Airlines
Multiple Airlines
ORD
12:00a
ONT
6:04a
6h 04m
1 stop
ONT
8:23a
ORD
4:33p
8h 10m
1 stop
Change your search
Select an airline:  AirTran
Direct flights CHI to ONT on AirTran
Flight # Depart MDW Arrive ONT Sun Mon Tue Wed Thu Fri Sat Valid Between
2769 12:05 pm 2:30 pm Dec 20 - Dec 27
2769 12:05 pm 2:30 pm Dec 28 - Dec 28
3046 12:05 pm 2:30 pm Dec 24 - Dec 25
6575 12:05 pm 2:30 pm Dec 26 - Dec 26
Airports
Origin

Chicago
$291
Destination

Ontario
$291