Find Cheap Flights from Ontario to Buffalo (ONT - BUF)

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 Ontario to Buffalo

(Round-trip)
Depart: Tue May 30 2017 Return: Tue Jun 6 2017 Trip spans 8 days
United
United
ONT
5:10p
BUF
3:09a
9h 59m
2 stops
BUF
2:20a
ONT
3:21p
13h 01m
2 stops
Depart: Thu Oct 26 2017 Return: Mon Oct 30 2017 Trip spans 5 days
Major Airline
Major Airline
ONT
10:20p
BUF
10:01a
11h 41m
2 stops
BUF
3:40a
ONT
5:20p
13h 40m
2 stops
Depart: Sat May 13 2017 Return: Sat May 20 2017 Trip spans 8 days
American Airlines
American Airlines
ONT
3:35p
BUF
2:32a
10h 57m
2 stops
BUF
7:45a
ONT
8:45p
13h 00m
2 stops
Depart: Wed May 31 2017 Return: Tue Jun 6 2017 Trip spans 7 days
United
United
ONT
3:56a
BUF
4:23p
12h 27m
2 stops
BUF
2:20a
ONT
3:21p
13h 01m
2 stops
Depart: Sat Jun 3 2017 Return: Tue Jun 20 2017 Trip spans 18 days
United
United
ONT
3:10p
BUF
3:09a
11h 59m
2 stops
BUF
8:31a
ONT
11:09p
14h 38m
2 stops
Depart: Tue Jun 6 2017 Return: Tue Jun 20 2017 Trip spans 15 days
United
United
ONT
3:56a
BUF
3:51p
11h 55m
2 stops
BUF
8:31a
ONT
11:09p
14h 38m
2 stops
Depart: Tue Sep 12 2017 Return: Thu Sep 21 2017 Trip spans 10 days
Major Airline
Major Airline
ONT
10:20p
BUF
10:01a
11h 41m
2 stops
BUF
3:40a
ONT
5:20p
13h 40m
2 stops
Depart: Mon May 15 2017 Return: Tue May 23 2017 Trip spans 9 days
American Airlines
American Airlines
ONT
3:35p
BUF
4:14a
12h 39m
2 stops
BUF
4:16a
ONT
5:26p
13h 10m
2 stops
Depart: Tue May 16 2017 Return: Tue May 23 2017 Trip spans 8 days
American Airlines
American Airlines
ONT
3:35p
BUF
4:14a
12h 39m
2 stops
BUF
4:16a
ONT
5:26p
13h 10m
2 stops
Depart: Sat Jun 17 2017 Return: Sat Jun 24 2017 Trip spans 8 days
Major Airline
Major Airline
ONT
9:15a
BUF
12:16a
15h 01m
2 stops
BUF
3:56a
ONT
5:16p
13h 20m
2 stops
Depart: Tue May 23 2017 Return: Thu Jun 1 2017 Trip spans 10 days
United
United
ONT
4:10p
BUF
3:04a
10h 54m
2 stops
BUF
2:20a
ONT
3:21p
13h 01m
2 stops
Depart: Tue May 2 2017 Return: Tue May 9 2017 Trip spans 8 days
American Airlines
American Airlines
ONT
2:20a
BUF
10:45a
8h 25m
2 stops
BUF
7:45a
ONT
8:45p
13h 00m
2 stops
Depart: Sat May 27 2017 Return: Sat Jun 3 2017 Trip spans 8 days
United
United
ONT
12:55p
BUF
2:38a
13h 43m
2 stops
BUF
2:20a
ONT
3:21p
13h 01m
2 stops
Depart: Fri Aug 18 2017 Return: Mon Aug 28 2017 Trip spans 11 days
Major Airline
Major Airline
ONT
10:20p
BUF
9:59a
11h 39m
2 stops
BUF
3:40a
ONT
5:20p
13h 40m
2 stops
Depart: Wed May 3 2017 Return: Tue May 9 2017 Trip spans 7 days
American Airlines
American Airlines
ONT
6:55a
BUF
5:07p
10h 12m
2 stops
BUF
7:45a
ONT
8:45p
13h 00m
2 stops
Depart: Sun May 28 2017 Return: Sat Jun 3 2017 Trip spans 7 days
United
United
ONT
1:30a
BUF
1:52p
12h 22m
2 stops
BUF
2:20a
ONT
3:21p
13h 01m
2 stops
Depart: Sat Jun 10 2017 Return: Tue Jun 20 2017 Trip spans 11 days
United
United
ONT
5:44p
BUF
6:18a
12h 34m
2 stops
BUF
8:31a
ONT
11:09p
14h 38m
2 stops
Depart: Mon May 29 2017 Return: Tue Jun 6 2017 Trip spans 9 days
American Airlines
American Airlines
ONT
3:35p
BUF
2:32a
10h 57m
2 stops
BUF
4:40a
ONT
5:26p
12h 46m
2 stops
Depart: Tue Jun 13 2017 Return: Tue Jun 20 2017 Trip spans 8 days
United
United
ONT
6:40a
BUF
4:59p
10h 19m
2 stops
BUF
8:31a
ONT
11:09p
14h 38m
2 stops
Depart: Wed Aug 30 2017 Return: Wed Sep 6 2017 Trip spans 8 days
Major Airline
Major Airline
ONT
10:20p
BUF
10:01a
11h 41m
2 stops
BUF
3:40a
ONT
5:20p
13h 40m
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

Ontario
$372
Destination

Buffalo
$372