Find Cheap Flights from Chicago to Ontario (CHI - 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 to Ontario

(Round-trip)
Depart: Sat Jun 24 2017 Return: Sun Jul 2 2017 Trip spans 9 days
United
United
ORD
ONT
8h 05m
1 stop
ONT
ORD
8h 30m
1 stop
Depart: Fri Aug 11 2017 Return: Sun Aug 13 2017 Trip spans 3 days
American Airlines
American Airlines
ORD
ONT
6h 02m
1 stop
ONT
ORD
3h 57m
nonstop
Depart: Tue May 9 2017 Return: Wed May 24 2017 Trip spans 16 days
Major Airline
Major Airline
MDW
ONT
5h 24m
nonstop
ONT
MDW
1h 24m
nonstop
Depart: Sat Sep 16 2017 Return: Wed Sep 20 2017 Trip spans 5 days
Delta
Delta
MDW
ONT
10h 42m
2 stops
ONT
MDW
8h 49m
2 stops
Depart: Sat Oct 28 2017 Return: Wed Nov 1 2017 Trip spans 5 days
United
United
ORD
ONT
6h 48m
1 stop
ONT
ORD
5h 55m
1 stop
Depart: Sat Aug 19 2017 Return: Fri Aug 25 2017 Trip spans 7 days
American Airlines
American Airlines
ORD
ONT
8h 21m
1 stop
ONT
ORD
6h 24m
1 stop
Depart: Fri Sep 15 2017 Return: Tue Sep 19 2017 Trip spans 5 days
American Airlines
American Airlines
ORD
ONT
6h 49m
1 stop
ONT
ORD
8h 40m
1 stop
Depart: Sat Aug 12 2017 Return: Wed Aug 16 2017 Trip spans 5 days
American Airlines
American Airlines
ORD
ONT
6h 02m
1 stop
ONT
ORD
7h 23m
1 stop
Depart: Sat Aug 19 2017 Return: Sat Aug 26 2017 Trip spans 8 days
Major Airline
Major Airline
MDW
ONT
5h 24m
1 stop
ONT
MDW
1h 24m
1 stop
Depart: Sat May 13 2017 Return: Sat May 27 2017 Trip spans 15 days
American Airlines
American Airlines
ORD
ONT
6h 01m
1 stop
ONT
ORD
6h 19m
1 stop
Depart: Sat Jun 24 2017 Return: Sat Jul 1 2017 Trip spans 8 days
United
United
ORD
ONT
8h 05m
1 stop
ONT
ORD
6h 58m
1 stop
Depart: Fri Jun 23 2017 Return: Sun Jul 2 2017 Trip spans 10 days
Major Airline
Major Airline
ORD
ONT
12h 17m
2 stops
ONT
ORD
7h 55m
2 stops
Depart: Sat Sep 2 2017 Return: Fri Sep 8 2017 Trip spans 7 days
United
United
ORD
ONT
8h 08m
1 stop
ONT
ORD
8h 05m
1 stop
Depart: Sat Jul 8 2017 Return: Fri Jul 14 2017 Trip spans 7 days
American Airlines
American Airlines
ORD
ONT
4h 17m
nonstop
ONT
ORD
3h 57m
nonstop
Depart: Tue May 23 2017 Return: Mon Jun 19 2017 Trip spans 28 days
Major Airline
Major Airline
ORD
ONT
18h 15m
2 stops
ONT
ORD
15h 11m
2 stops
Depart: Thu Jun 15 2017 Return: Sat Jun 24 2017 Trip spans 10 days
American Airlines
American Airlines
ORD
ONT
6h 02m
1 stop
ONT
ORD
8h 31m
1 stop
Depart: Wed May 24 2017 Return: Wed May 31 2017 Trip spans 8 days
Major Airline
Major Airline
ORD
ONT
5h 23m
nonstop
ONT
ORD
1h 23m
nonstop
Depart: Wed Aug 30 2017 Return: Tue Sep 19 2017 Trip spans 21 days
Delta
Delta
MDW
ONT
11h 04m
2 stops
ONT
MDW
8h 49m
2 stops
Depart: Wed May 31 2017 Return: Mon Jun 5 2017 Trip spans 6 days
American Airlines
American Airlines
ORD
ONT
6h 01m
1 stop
ONT
ORD
8h 31m
1 stop
Depart: Wed Jul 5 2017 Return: Mon Jul 10 2017 Trip spans 6 days
Major Airline
Major Airline
MDW
ONT
5h 24m
nonstop
ONT
MDW
1h 24m
nonstop
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
1163 6:25 pm 8:40 pm Apr 29 - Jun 3
371 7:30 pm 9:45 pm Apr 26 - May 26
371 7:30 pm 9:45 pm May 30 - Jun 2
3124 7:40 pm 10:00 pm Apr 30 - May 7
3124 7:40 pm 10:00 pm May 14 - May 28
5136 7:50 pm 10:00 pm Jun 4 - Aug 13
356 8:00 pm 10:10 pm Jun 5 - Jun 30
371 8:50 pm 11:05 pm May 29 - May 29
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Chicago
only $228
only $289
Destination

Ontario
$228