Find Deals on 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: Wed May 11 2016 Return: Tue Jun 7 2016 Trip spans 28 days
United
United
ORD
ONT
7h 21m
1 stop
ONT
ORD
7h 04m
1 stop
Depart: Wed Aug 17 2016 Return: Tue Aug 23 2016 Trip spans 7 days
American Airlines
American Airlines
ORD
ONT
8h 30m
1 stop
ONT
ORD
6h 24m
1 stop
Depart: Sat Sep 10 2016 Return: Fri Sep 30 2016 Trip spans 21 days
Delta
Delta
ORD
ONT
6h 07m
1 stop
ONT
ORD
7h 31m
1 stop
Depart: Fri Aug 26 2016 Return: Tue Aug 30 2016 Trip spans 5 days
Southwest
Southwest
MDW
ONT
6h 30m
1 stop
ONT
MDW
5h 55m
1 stop
Depart: Thu Aug 18 2016 Return: Mon Aug 22 2016 Trip spans 5 days
Major Airline
Major Airline
ORD
ONT
10h 00m
1 stop
ONT
ORD
6h 27m
1 stop
Depart: Thu May 12 2016 Return: Mon May 16 2016 Trip spans 5 days
United
United
ORD
ONT
7h 21m
1 stop
ONT
ORD
7h 04m
1 stop
Depart: Fri Jun 3 2016 Return: Tue Jun 7 2016 Trip spans 5 days
United
United
ORD
ONT
6h 41m
1 stop
ONT
ORD
7h 04m
1 stop
Depart: Thu Sep 29 2016 Return: Fri Sep 30 2016 Trip spans 2 days
American Airlines
American Airlines
ORD
ONT
6h 03m
1 stop
ONT
ORD
6h 24m
1 stop
Depart: Wed Oct 5 2016 Return: Sat Oct 8 2016 Trip spans 4 days
American Airlines
American Airlines
ORD
ONT
6h 03m
1 stop
ONT
ORD
6h 24m
1 stop
Depart: Thu Sep 8 2016 Return: Sat Sep 10 2016 Trip spans 3 days
Southwest
Southwest
MDW
ONT
6h 50m
1 stop
ONT
MDW
6h 10m
1 stop
Depart: Sat Jul 9 2016 Return: Sun Jul 10 2016 Trip spans 2 days
United
United
ORD
ONT
8h 16m
1 stop
ONT
ORD
6h 03m
1 stop
Depart: Tue Nov 1 2016 Return: Fri Nov 4 2016 Trip spans 4 days
American Airlines
American Airlines
ORD
ONT
6h 34m
1 stop
ONT
ORD
6h 24m
1 stop
Depart: Tue Sep 13 2016 Return: Tue Sep 20 2016 Trip spans 8 days
Southwest
Southwest
MDW
ONT
5h 50m
1 stop
ONT
MDW
5h 55m
1 stop
Depart: Sat Jul 23 2016 Return: Fri Jul 29 2016 Trip spans 7 days
United
United
ORD
ONT
8h 16m
1 stop
ONT
ORD
6h 07m
1 stop
Depart: Wed Nov 2 2016 Return: Tue Nov 8 2016 Trip spans 7 days
American Airlines
American Airlines
ORD
ONT
8h 31m
1 stop
ONT
ORD
6h 34m
1 stop
Depart: Wed Jul 13 2016 Return: Sat Jul 16 2016 Trip spans 4 days
Southwest
Southwest
MDW
ONT
5h 55m
1 stop
ONT
MDW
5h 15m
1 stop
Depart: Fri Jul 22 2016 Return: Fri Jul 29 2016 Trip spans 8 days
Major Airline
Major Airline
ORD
ONT
10h 11m
1 stop
ONT
ORD
6h 31m
1 stop
Depart: Sat May 21 2016 Return: Thu May 26 2016 Trip spans 6 days
American Airlines
American Airlines
ORD
ONT
6h 05m
1 stop
ONT
ORD
6h 01m
1 stop
Depart: Fri Jul 15 2016 Return: Wed Aug 3 2016 Trip spans 20 days
Major Airline
Major Airline
ORD
ONT
8h 16m
1 stop
ONT
ORD
6h 07m
1 stop
Depart: Wed Jul 20 2016 Return: Mon Jul 25 2016 Trip spans 6 days
Southwest
Southwest
MDW
ONT
6h 10m
1 stop
ONT
MDW
5h 40m
1 stop
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
1565 7:55 am 10:00 am Jun 5 - Jun 26
380 7:55 am 10:00 am Jun 6 - Jul 1
211 8:25 am 10:40 am May 29 - May 29
2621 8:25 am 10:40 am May 30 - May 30
2820 8:25 am 10:40 am May 31 - Jun 3
2820 8:25 am 10:40 am Apr 28 - May 27
2865 9:45 am 12:05 pm Apr 30 - Jun 4
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Why aren’t prices accurate 100% of the time?
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Airports
Origin

Chicago
only $194
only $307
Destination

Ontario
$194