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 Sep 9 2015 Return: Fri Sep 11 2015 Trip spans 3 days
American Airlines
American Airlines
ORD
2:25p
ONT
9:04p
6h 39m
1 stop
ONT
10:23a
ORD
4:40p
6h 17m
1 stop
Depart: Thu Sep 10 2015 Return: Mon Sep 14 2015 Trip spans 5 days
United
United
ORD
9:45a
ONT
4:31p
6h 46m
1 stop
ONT
5:07p
ORD
12:29a
7h 22m
1 stop
Depart: Sat Sep 19 2015 Return: Sat Sep 26 2015 Trip spans 8 days
US Airways
US Airways
ORD
5:45a
ONT
1:09p
7h 24m
1 stop
ONT
2:30a
ORD
10:10a
7h 40m
1 stop
Depart: Sat Sep 12 2015 Return: Mon Sep 14 2015 Trip spans 3 days
United
United
ORD
1:16a
ONT
8:44a
7h 28m
1 stop
ONT
2:00p
ORD
11:00p
9h 00m
1 stop
Depart: Sun Sep 13 2015 Return: Mon Sep 21 2015 Trip spans 9 days
United
United
ORD
1:16a
ONT
8:44a
7h 28m
1 stop
ONT
3:01p
ORD
12:29a
9h 28m
1 stop
Depart: Tue Sep 15 2015 Return: Mon Sep 21 2015 Trip spans 7 days
United
United
ORD
6:00a
ONT
3:27p
9h 27m
1 stop
ONT
3:01p
ORD
12:29a
9h 28m
1 stop
Depart: Wed Sep 16 2015 Return: Wed Sep 23 2015 Trip spans 8 days
United
United
ORD
10:29a
ONT
6:37p
8h 08m
1 stop
ONT
4:46a
ORD
1:51p
9h 05m
1 stop
Depart: Thu Sep 17 2015 Return: Wed Sep 23 2015 Trip spans 7 days
United
United
ORD
2:00a
ONT
10:12a
8h 12m
1 stop
ONT
4:46a
ORD
1:13p
8h 27m
1 stop
Depart: Tue Sep 22 2015 Return: Mon Sep 28 2015 Trip spans 7 days
United
United
ORD
5:30a
ONT
2:32p
9h 02m
1 stop
ONT
3:00p
ORD
10:45p
7h 45m
1 stop
Depart: Wed Sep 23 2015 Return: Tue Sep 29 2015 Trip spans 7 days
United
United
ORD
9:50a
ONT
4:31p
6h 41m
1 stop
ONT
3:00p
ORD
12:37a
9h 37m
1 stop
Depart: Thu Sep 24 2015 Return: Mon Sep 28 2015 Trip spans 5 days
United
United
ORD
8:00a
ONT
3:31p
7h 31m
1 stop
ONT
3:00p
ORD
11:20p
8h 20m
1 stop
Depart: Fri Sep 25 2015 Return: Fri Oct 2 2015 Trip spans 8 days
United
United
ORD
9:45a
ONT
4:30p
6h 45m
1 stop
ONT
3:00p
ORD
12:37a
9h 37m
1 stop
Depart: Sat Sep 26 2015 Return: Sun Oct 4 2015 Trip spans 9 days
American Airlines
American Airlines
ORD
1:00a
ONT
8:12a
7h 12m
1 stop
ONT
5:45p
ORD
12:13a
6h 28m
1 stop
Depart: Tue Sep 29 2015 Return: Mon Oct 5 2015 Trip spans 7 days
US Airways
US Airways
ORD
1:05a
ONT
7:08a
6h 03m
1 stop
ONT
3:25p
ORD
11:23p
7h 58m
1 stop
Depart: Wed Sep 30 2015 Return: Tue Oct 6 2015 Trip spans 7 days
United
United
ORD
3:04a
ONT
10:09a
7h 05m
1 stop
ONT
4:46a
ORD
12:22p
7h 36m
1 stop
Depart: Sat Oct 3 2015 Return: Sun Oct 4 2015 Trip spans 2 days
American Airlines
American Airlines
ORD
1:05a
ONT
7:07a
6h 02m
1 stop
ONT
5:45p
ORD
12:13a
6h 28m
1 stop
Depart: Wed Oct 7 2015 Return: Tue Oct 13 2015 Trip spans 7 days
American Airlines
American Airlines
ORD
11:50a
ONT
9:04p
9h 14m
1 stop
ONT
3:25p
ORD
11:23p
7h 58m
1 stop
Depart: Thu Dec 3 2015 Return: Tue Dec 8 2015 Trip spans 6 days
Southwest
Southwest
MDW
3:45a
ONT
8:15a
4h 30m
nonstop
ONT
1:20a
MDW
5:15a
3h 55m
nonstop
Depart: Fri Oct 2 2015 Return: Mon Oct 5 2015 Trip spans 4 days
Delta
Delta
ORD
2:35p
ONT
8:34p
5h 59m
1 stop
ONT
2:15a
ORD
9:27a
7h 12m
1 stop
Depart: Mon Jan 4 2016 Return: Sat Jan 9 2016 Trip spans 6 days
Delta
Delta
MDW
10:27a
ONT
2:39p
28h 12m
2 stops
ONT
1:05a
MDW
9:51a
8h 46m
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 Sep 7 - Sep 25
2946 8:25 am 10:45 am Sep 27 - Oct 30
4150 9:20 am 11:35 am Sep 12 - Sep 26
4150 9:20 am 11:40 am Oct 3 - Oct 24
Airports
Origin

Chicago
only $231
only $261
Destination

Ontario
$231