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: Tue Apr 5 2016 Return: Wed Apr 13 2016 Trip spans 9 days
United
United
ORD
ONT
7h 48m
1 stop
ONT
ORD
6h 43m
1 stop
Depart: Sat Apr 30 2016 Return: Sat May 7 2016 Trip spans 8 days
United
United
ORD
ONT
9h 14m
1 stop
ONT
ORD
8h 29m
1 stop
Depart: Tue May 3 2016 Return: Sat May 7 2016 Trip spans 5 days
United
United
ORD
ONT
8h 03m
1 stop
ONT
ORD
8h 03m
1 stop
Depart: Tue Mar 1 2016 Return: Sat Mar 5 2016 Trip spans 5 days
United
United
ORD
ONT
8h 06m
1 stop
ONT
ORD
8h 38m
1 stop
Depart: Tue Feb 23 2016 Return: Tue Mar 8 2016 Trip spans 15 days
United
United
ORD
ONT
7h 14m
1 stop
ONT
ORD
8h 25m
1 stop
Depart: Wed May 4 2016 Return: Sun May 8 2016 Trip spans 5 days
Southwest
Southwest
MDW
ONT
4h 15m
nonstop
ONT
MDW
3h 55m
nonstop
Depart: Thu May 5 2016 Return: Sun May 8 2016 Trip spans 4 days
United
United
ORD
ONT
9h 00m
1 stop
ONT
ORD
7h 27m
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: Wed Mar 23 2016 Return: Wed Apr 6 2016 Trip spans 15 days
United
United
ORD
ONT
8h 19m
1 stop
ONT
ORD
7h 59m
1 stop
Depart: Sat Apr 16 2016 Return: Sat Apr 23 2016 Trip spans 8 days
Delta
Delta
MDW
ONT
8h 12m
2 stops
ONT
MDW
9h 13m
2 stops
Depart: Fri Mar 4 2016 Return: Wed Mar 9 2016 Trip spans 6 days
United
United
ORD
ONT
8h 40m
1 stop
ONT
ORD
7h 24m
1 stop
Depart: Tue Apr 26 2016 Return: Fri Apr 29 2016 Trip spans 4 days
Southwest
Southwest
MDW
ONT
4h 15m
nonstop
ONT
MDW
3h 55m
nonstop
Depart: Fri Jun 3 2016 Return: Tue Jun 7 2016 Trip spans 5 days
American Airlines
American Airlines
ORD
ONT
6h 03m
1 stop
ONT
ORD
9h 52m
2 stops
Depart: Sat May 21 2016 Return: Sat May 28 2016 Trip spans 8 days
Southwest
Southwest
MDW
ONT
4h 20m
nonstop
ONT
MDW
3h 55m
nonstop
Depart: Wed May 25 2016 Return: Tue Jun 7 2016 Trip spans 14 days
United
United
ORD
ONT
7h 21m
1 stop
ONT
ORD
8h 08m
1 stop
Depart: Fri Mar 11 2016 Return: Thu Mar 17 2016 Trip spans 6 days
Southwest
Southwest
MDW
ONT
4h 25m
nonstop
ONT
MDW
3h 50m
nonstop
Depart: Tue Aug 30 2016 Return: Mon Sep 5 2016 Trip spans 7 days
American Airlines
American Airlines
ORD
ONT
6h 34m
1 stop
ONT
ORD
6h 24m
1 stop
Depart: Thu Apr 21 2016 Return: Mon Apr 25 2016 Trip spans 5 days
United
United
ORD
ONT
8h 03m
1 stop
ONT
ORD
6h 08m
1 stop
Depart: Sat Jul 2 2016 Return: Sat Jul 9 2016 Trip spans 8 days
United
United
ORD
ONT
8h 15m
1 stop
ONT
ORD
9h 07m
1 stop
Depart: Thu Jul 21 2016 Return: Tue Jul 26 2016 Trip spans 6 days
Delta
Delta
ORD
ONT
6h 11m
1 stop
ONT
ORD
5h 28m
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 11 - Mar 8
2614 8:45 am 11:10 am Mar 13 - Apr 10
4049 8:45 am 11:10 am Mar 14 - Apr 11
4049 8:45 am 11:10 am Mar 10 - Mar 11
3725 9:00 am 11:30 am Feb 13 - Mar 5
559 9:00 am 11:25 am Mar 19 - Apr 9
559 9:00 am 11:25 am Mar 12 - Mar 12
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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

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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 $203
Destination

Ontario
$177