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 Mar 2 2016 Return: Sat Mar 5 2016 Trip spans 4 days
United
United
ORD
ONT
9h 10m
1 stop
ONT
ORD
7h 30m
1 stop
Depart: Wed Apr 6 2016 Return: Wed Apr 20 2016 Trip spans 15 days
United
United
ORD
ONT
8h 03m
1 stop
ONT
ORD
7h 32m
1 stop
Depart: Tue Apr 19 2016 Return: Tue May 3 2016 Trip spans 15 days
United
United
ORD
ONT
7h 56m
1 stop
ONT
ORD
8h 23m
1 stop
Depart: Sat Apr 30 2016 Return: Tue May 3 2016 Trip spans 4 days
United
United
ORD
ONT
8h 03m
1 stop
ONT
ORD
6h 48m
1 stop
Depart: Tue May 3 2016 Return: Sat May 7 2016 Trip spans 5 days
United
United
ORD
ONT
6h 38m
1 stop
ONT
ORD
6h 23m
1 stop
Depart: Mon Feb 29 2016 Return: Tue Mar 8 2016 Trip spans 9 days
United
United
ORD
ONT
8h 06m
1 stop
ONT
ORD
8h 01m
1 stop
Depart: Wed Feb 24 2016 Return: Tue Mar 8 2016 Trip spans 14 days
United
United
ORD
ONT
8h 18m
1 stop
ONT
ORD
8h 25m
1 stop
Depart: Sat Feb 27 2016 Return: Mon Mar 7 2016 Trip spans 10 days
United
United
ORD
ONT
9h 50m
1 stop
ONT
ORD
6h 14m
1 stop
Depart: Thu May 5 2016 Return: Mon May 9 2016 Trip spans 5 days
United
United
ORD
ONT
8h 51m
1 stop
ONT
ORD
6h 51m
1 stop
Depart: Fri Feb 26 2016 Return: Tue Mar 1 2016 Trip spans 5 days
United
United
ORD
ONT
8h 04m
1 stop
ONT
ORD
8h 03m
1 stop
Depart: Fri May 6 2016 Return: Mon May 9 2016 Trip spans 4 days
United
United
ORD
ONT
8h 51m
1 stop
ONT
ORD
6h 51m
1 stop
Depart: Fri Apr 15 2016 Return: Sun Apr 17 2016 Trip spans 3 days
United
United
ORD
ONT
8h 52m
1 stop
ONT
ORD
6h 31m
1 stop
Depart: Tue Mar 29 2016 Return: Tue Apr 5 2016 Trip spans 8 days
United
United
ORD
ONT
8h 25m
1 stop
ONT
ORD
7h 39m
1 stop
Depart: Sat Apr 16 2016 Return: Sat Apr 23 2016 Trip spans 8 days
Delta
Delta
MDW
ONT
7h 35m
2 stops
ONT
MDW
8h 30m
2 stops
Depart: Sat Apr 9 2016 Return: Tue Apr 12 2016 Trip spans 4 days
Southwest
Southwest
MDW
ONT
4h 25m
nonstop
ONT
MDW
3h 55m
nonstop
Depart: Sat May 7 2016 Return: Wed May 11 2016 Trip spans 5 days
Southwest
Southwest
MDW
ONT
4h 20m
nonstop
ONT
MDW
3h 55m
nonstop
Depart: Tue May 17 2016 Return: Tue May 24 2016 Trip spans 8 days
Southwest
Southwest
MDW
ONT
4h 15m
nonstop
ONT
MDW
3h 55m
nonstop
Depart: Sat Mar 19 2016 Return: Mon Mar 21 2016 Trip spans 3 days
Southwest
Southwest
MDW
ONT
4h 25m
nonstop
ONT
MDW
3h 50m
nonstop
Depart: Thu Mar 3 2016 Return: Sun Mar 6 2016 Trip spans 4 days
American Airlines
American Airlines
ORD
ONT
8h 46m
1 stop
ONT
ORD
6h 32m
1 stop
Depart: Fri Aug 19 2016 Return: Sat Aug 27 2016 Trip spans 9 days
Delta
Delta
ORD
ONT
6h 11m
1 stop
ONT
ORD
7h 14m
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
3545 8:35 am 11:00 am Mar 9 - Mar 9
833 8:35 am 11:00 am Feb 14 - Mar 8
2614 8:45 am 11:10 am Mar 13 - Apr 10
4049 8:45 am 11:10 am Mar 10 - Mar 11
4049 8:45 am 11:10 am Mar 14 - Apr 11
3725 9:00 am 11:30 am Jan 30 - Mar 5
559 9:00 am 11:25 am Mar 12 - Mar 12
559 9:00 am 11:25 am Mar 19 - Apr 9
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We make every attempt to get accurate prices, however, prices are not guaranteed.

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We’re not the seller
At KAYAK we don’t set prices, so it’s not possible for us to guarantee what other companies are selling.

We aggregate tons of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we don't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find on occasion that certain prices are no longer available.

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Airports
Origin

Chicago
only $177
only $282
Destination

Ontario
$177