Find Deals on Flights from Chicago to Ontario (CHI - ONT)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youth
12-17
Child
2-11
Seat Infant
under 2
Lap Infant
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 to Ontario

(Round-trip)
Depart: Wed Oct 21 2015 Return: Tue Oct 27 2015 Trip spans 7 days
Southwest
Southwest
MDW
4:25a
ONT
8:45a
4h 20m
nonstop
ONT
2:20a
MDW
6:15a
3h 55m
nonstop
Depart: Tue Aug 11 2015 Return: Sat Aug 15 2015 Trip spans 5 days
US Airways
US Airways
ORD
1:10a
ONT
7:09a
5h 59m
1 stop
ONT
12:40p
ORD
6:12p
5h 32m
1 stop
Depart: Wed Aug 12 2015 Return: Sat Aug 22 2015 Trip spans 11 days
American Airlines
American Airlines
ORD
1:10a
ONT
7:09a
5h 59m
1 stop
ONT
12:40p
ORD
6:12p
5h 32m
1 stop
Depart: Sat Sep 12 2015 Return: Tue Sep 15 2015 Trip spans 4 days
United
United
ORD
1:16a
ONT
8:44a
7h 28m
1 stop
ONT
8:44a
ORD
4:47p
8h 03m
1 stop
Depart: Sat Aug 15 2015 Return: Sat Aug 22 2015 Trip spans 8 days
American Airlines
American Airlines
ORD
4:05p
ONT
9:57p
5h 52m
1 stop
ONT
6:00a
ORD
12:03p
6h 03m
1 stop
Depart: Tue Aug 25 2015 Return: Sat Aug 29 2015 Trip spans 5 days
American Airlines
American Airlines
ORD
1:10a
ONT
7:09a
5h 59m
1 stop
ONT
12:40p
ORD
6:12p
5h 32m
1 stop
Depart: Thu Aug 27 2015 Return: Sat Aug 29 2015 Trip spans 3 days
US Airways
US Airways
ORD
1:05a
ONT
8:07a
7h 02m
1 stop
ONT
12:40p
ORD
6:12p
5h 32m
1 stop
Depart: Sat Aug 29 2015 Return: Tue Sep 1 2015 Trip spans 4 days
US Airways
US Airways
ORD
1:10a
ONT
7:05a
5h 55m
1 stop
ONT
12:40p
ORD
6:12p
5h 32m
1 stop
Depart: Tue Sep 15 2015 Return: Wed Sep 16 2015 Trip spans 2 days
United
United
ORD
7:29a
ONT
3:27p
7h 58m
1 stop
ONT
1:05p
ORD
7:29p
6h 24m
1 stop
Depart: Wed Sep 16 2015 Return: Tue Sep 22 2015 Trip spans 7 days
United
United
ORD
2:13p
ONT
10:29p
8h 16m
1 stop
ONT
5:07p
ORD
12:29a
7h 22m
1 stop
Depart: Sat Sep 19 2015 Return: Tue Sep 22 2015 Trip spans 4 days
United
United
ORD
1:42p
ONT
8:32p
6h 50m
1 stop
ONT
6:24a
ORD
1:13p
6h 49m
1 stop
Depart: Tue Sep 22 2015 Return: Tue Sep 29 2015 Trip spans 8 days
United
United
ORD
12:10p
ONT
6:14p
6h 04m
1 stop
ONT
4:57p
ORD
11:20p
6h 23m
1 stop
Depart: Wed Sep 23 2015 Return: Wed Sep 30 2015 Trip spans 8 days
United
United
ORD
1:16a
ONT
8:44a
7h 28m
1 stop
ONT
9:21a
ORD
5:36p
8h 15m
1 stop
Depart: Sat Sep 26 2015 Return: Tue Sep 29 2015 Trip spans 4 days
United
United
ORD
11:06a
ONT
6:27p
7h 21m
1 stop
ONT
4:57p
ORD
11:20p
6h 23m
1 stop
Depart: Tue Sep 29 2015 Return: Sat Oct 3 2015 Trip spans 5 days
United
United
ORD
3:04a
ONT
10:09a
7h 05m
1 stop
ONT
9:30a
ORD
4:29p
6h 59m
1 stop
Depart: Wed Sep 30 2015 Return: Sat Oct 3 2015 Trip spans 4 days
United
United
ORD
8:26a
ONT
3:31p
7h 05m
1 stop
ONT
9:30a
ORD
4:29p
6h 59m
1 stop
Depart: Thu Oct 1 2015 Return: Tue Oct 6 2015 Trip spans 6 days
American Airlines
American Airlines
ORD
2:25p
ONT
9:04p
6h 39m
1 stop
ONT
12:40p
ORD
6:10p
5h 30m
1 stop
Depart: Fri Oct 2 2015 Return: Mon Oct 5 2015 Trip spans 4 days
American Airlines
American Airlines
ORD
1:05a
ONT
7:08a
6h 03m
1 stop
ONT
12:40p
ORD
6:10p
5h 30m
1 stop
Depart: Mon Sep 21 2015 Return: Sat Oct 3 2015 Trip spans 13 days
Delta
Delta
ORD
12:15p
ONT
8:31p
8h 16m
1 stop
ONT
9:15a
ORD
3:12p
5h 57m
1 stop
Depart: Wed Nov 18 2015 Return: Wed Dec 2 2015 Trip spans 15 days
Delta
Delta
MDW
7:40a
ONT
7:26p
11h 46m
2 stops
ONT
1:15p
MDW
2:04a
12h 49m
2 stops
Select an airline:  Southwest
Direct flights CHI to ONT on Southwest
Flight # Depart MDW Arrive ONT Sun Mon Tue Wed Thu Fri Sat Valid Between
2946 8:25 am 10:40 am Aug 9 - Sep 4
2946 8:25 am 10:40 am Sep 7 - Sep 25
5422 8:25 am 10:45 am Sep 6 - Sep 6
4150 9:20 am 11:35 am Aug 15 - Aug 29
6635 9:20 am 11:35 am Sep 5 - Sep 5
2674 4:30 pm 6:40 pm Jul 30 - Aug 7
2257 7:50 pm 10:00 pm Aug 1 - Aug 8
Airports
Origin

Chicago
only $231
only $197
Destination

Ontario
$197