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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Houston Hobby & other airports to Ontario

(Round-trip)
Depart: Wed Sep 13 2017 Return: Thu Sep 21 2017 Trip spans 9 days
Multiple Airlines
Multiple Airlines
HOU
12:00a
ONT
7:49a
7h 49m
1 stop
ONT
12:00a
HOU
9:37a
9h 37m
1 stop
Depart: Tue Aug 29 2017 Return: Fri Sep 1 2017 Trip spans 4 days
American Airlines
American Airlines
HOU
12:00a
ONT
5:33a
5h 33m
1 stop
ONT
12:00a
HOU
4:46a
4h 46m
1 stop
Depart: Tue Aug 29 2017 Return: Wed Sep 6 2017 Trip spans 9 days
Delta
Delta
HOU
12:00a
ONT
6:00a
6h 00m
1 stop
ONT
12:00a
HOU
7:41a
7h 41m
1 stop
Depart: Fri Aug 11 2017 Return: Sat Aug 12 2017 Trip spans 2 days
United
United
HOU
12:00a
ONT
7:04a
7h 04m
1 stop
ONT
12:00a
HOU
6:10a
6h 10m
1 stop
Depart: Fri Aug 18 2017 Return: Wed Aug 23 2017 Trip spans 6 days
Alaska Airlines
Alaska Airlines
HOU
12:00a
ONT
12:31a
24h 31m
1 stop
ONT
12:00a
HOU
9:55a
9h 55m
1 stop
Depart: Wed Aug 30 2017 Return: Fri Sep 1 2017 Trip spans 3 days
American Airlines
American Airlines
HOU
12:00a
ONT
5:20a
5h 20m
1 stop
ONT
12:00a
HOU
4:46a
4h 46m
1 stop
Depart: Wed Sep 13 2017 Return: Mon Sep 18 2017 Trip spans 6 days
Multiple Airlines
Multiple Airlines
HOU
12:00a
ONT
5:31a
5h 31m
1 stop
ONT
12:00a
HOU
6:39a
6h 39m
1 stop
Depart: Tue Aug 29 2017 Return: Sun Sep 3 2017 Trip spans 6 days
Delta
Delta
HOU
12:00a
ONT
6:00a
6h 00m
1 stop
ONT
12:00a
HOU
5:43a
5h 43m
1 stop
Depart: Fri Sep 22 2017 Return: Sun Sep 24 2017 Trip spans 3 days
United
United
HOU
12:00a
ONT
6:24a
6h 24m
1 stop
ONT
12:00a
HOU
6:37a
6h 37m
1 stop
Depart: Thu Aug 31 2017 Return: Fri Sep 1 2017 Trip spans 2 days
American Airlines
American Airlines
HOU
12:00a
ONT
5:33a
5h 33m
1 stop
ONT
12:00a
HOU
4:46a
4h 46m
1 stop
Depart: Thu Aug 17 2017 Return: Fri Aug 25 2017 Trip spans 9 days
Multiple Airlines
Multiple Airlines
HOU
12:00a
ONT
8:01a
8h 01m
1 stop
ONT
12:00a
HOU
4:46a
4h 46m
1 stop
Depart: Tue Oct 17 2017 Return: Sat Oct 21 2017 Trip spans 5 days
Delta
Delta
HOU
12:00a
ONT
8:38a
8h 38m
1 stop
ONT
12:00a
HOU
5:41a
5h 41m
1 stop
Depart: Sat Sep 2 2017 Return: Wed Sep 6 2017 Trip spans 5 days
American Airlines
American Airlines
HOU
12:00a
ONT
5:27a
5h 27m
1 stop
ONT
12:00a
HOU
5:33a
5h 33m
1 stop
Depart: Wed Sep 13 2017 Return: Fri Sep 22 2017 Trip spans 10 days
Multiple Airlines
Multiple Airlines
HOU
12:00a
ONT
5:33a
5h 33m
1 stop
ONT
12:00a
HOU
6:39a
6h 39m
1 stop
Depart: Thu Aug 17 2017 Return: Sat Aug 26 2017 Trip spans 10 days
American Airlines
American Airlines
HOU
12:00a
ONT
5:22a
5h 22m
1 stop
ONT
12:00a
HOU
5:27a
5h 27m
1 stop
Depart: Tue Oct 17 2017 Return: Fri Oct 20 2017 Trip spans 4 days
Delta
Delta
HOU
12:00a
ONT
8:38a
8h 38m
1 stop
ONT
12:00a
HOU
5:42a
5h 42m
1 stop
Depart: Wed Aug 9 2017 Return: Thu Aug 10 2017 Trip spans 2 days
Multiple Airlines
Multiple Airlines
HOU
12:00a
ONT
5:22a
5h 22m
1 stop
ONT
12:00a
HOU
6:06a
6h 06m
1 stop
Depart: Thu Aug 3 2017 Return: Fri Aug 11 2017 Trip spans 9 days
United
United
HOU
12:00a
ONT
6:54a
6h 54m
1 stop
ONT
12:00a
HOU
7:29a
7h 29m
1 stop
Depart: Tue Aug 29 2017 Return: Thu Aug 31 2017 Trip spans 3 days
American Airlines
American Airlines
HOU
12:00a
ONT
5:31a
5h 31m
1 stop
ONT
12:00a
HOU
4:46a
4h 46m
1 stop
Depart: Tue Aug 15 2017 Return: Mon Aug 21 2017 Trip spans 7 days
Multiple Airlines
Multiple Airlines
HOU
12:00a
ONT
5:22a
5h 22m
1 stop
ONT
12:00a
HOU
6:20a
6h 20m
1 stop
* 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

Houston
$334
Destination

Ontario
$334