Find Cheap Flights to Ontario

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 New York to Ontario

(Round-trip)
Depart: Tue Oct 17 2017 Return: Sat Oct 21 2017 Trip spans 5 days
Frontier
Frontier
LGA
ONT
14h 24m
1 stop
ONT
LGA
8h 03m
1 stop
Depart: Thu Sep 14 2017 Return: Sun Sep 17 2017 Trip spans 4 days
United
United
EWR
ONT
11h 26m
1 stop
ONT
EWR
7h 43m
1 stop
Depart: Fri Nov 3 2017 Return: Wed Nov 8 2017 Trip spans 6 days
Delta
Delta
EWR
ONT
7h 54m
1 stop
ONT
EWR
7h 11m
1 stop
Depart: Tue Sep 12 2017 Return: Sat Sep 16 2017 Trip spans 5 days
American Airlines
American Airlines
JFK
ONT
7h 56m
1 stop
ONT
JFK
7h 22m
1 stop
Depart: Sat Feb 3 2018 Return: Sat Feb 10 2018 Trip spans 8 days
Alaska Airlines
Alaska Airlines
JFK
ONT
11h 56m
1 stop
ONT
JFK
9h 50m
1 stop
Depart: Thu Oct 19 2017 Return: Mon Oct 23 2017 Trip spans 5 days
Frontier
Frontier
LGA
ONT
14h 24m
1 stop
ONT
LGA
8h 03m
1 stop
Depart: Wed Nov 1 2017 Return: Tue Nov 14 2017 Trip spans 14 days
Frontier
Frontier
LGA
ONT
27h 20m
2 stops
ONT
LGA
19h 14m
2 stops
Depart: Tue Dec 5 2017 Return: Tue Dec 12 2017 Trip spans 8 days
Frontier
Frontier
LGA
ONT
19h 10m
2 stops
ONT
LGA
19h 09m
2 stops
Depart: Wed Nov 29 2017 Return: Wed Dec 6 2017 Trip spans 8 days
Delta
Delta
EWR
ONT
7h 44m
1 stop
ONT
EWR
7h 11m
1 stop
Depart: Fri Dec 1 2017 Return: Mon Dec 4 2017 Trip spans 4 days
United
United
EWR
ONT
7h 54m
1 stop
ONT
EWR
7h 24m
1 stop
Depart: Sat Nov 4 2017 Return: Tue Nov 14 2017 Trip spans 11 days
American Airlines
American Airlines
JFK
ONT
8h 13m
1 stop
ONT
JFK
7h 21m
1 stop
Depart: Fri Dec 8 2017 Return: Mon Dec 11 2017 Trip spans 4 days
United
United
EWR
ONT
9h 02m
1 stop
ONT
EWR
7h 24m
1 stop
Depart: Sat Dec 9 2017 Return: Tue Dec 12 2017 Trip spans 4 days
American Airlines
American Airlines
JFK
ONT
8h 20m
1 stop
ONT
JFK
7h 21m
1 stop
Depart: Thu Oct 26 2017 Return: Sun Oct 29 2017 Trip spans 4 days
Delta
Delta
JFK
ONT
10h 00m
1 stop
ONT
JFK
11h 57m
2 stops
Depart: Tue Feb 6 2018 Return: Tue Feb 13 2018 Trip spans 8 days
Frontier
Frontier
LGA
ONT
11h 55m
2 stops
ONT
LGA
19h 09m
2 stops
Depart: Fri Jan 5 2018 Return: Sat Jan 13 2018 Trip spans 9 days
United
United
EWR
ONT
9h 03m
1 stop
ONT
EWR
6h 34m
1 stop
Depart: Wed Oct 4 2017 Return: Tue Oct 10 2017 Trip spans 7 days
American Airlines
American Airlines
JFK
ONT
8h 10m
1 stop
ONT
JFK
7h 05m
1 stop
Depart: Sat Jan 13 2018 Return: Fri Jan 19 2018 Trip spans 7 days
Delta
Delta
JFK
ONT
8h 16m
1 stop
ONT
JFK
8h 28m
1 stop
Depart: Fri Feb 2 2018 Return: Fri Feb 9 2018 Trip spans 8 days
United
United
EWR
ONT
8h 42m
1 stop
ONT
EWR
7h 21m
1 stop
Depart: Thu Jan 11 2018 Return: Tue Jan 16 2018 Trip spans 6 days
Frontier
Frontier
LGA
ONT
11h 55m
2 stops
ONT
LGA
19h 09m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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

Here's why:

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

We compile tonnes 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 can'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.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

New York
only $238
only $341
Newark
$336
Destination

Ontario
$238