Find flights
When to book
FAQs

Cheap flights from Ontario to Buffalo from C$ 313

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BUF
15 Jul — 22 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Buffalo

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Buffalo
Explore the most affordable flight options available from Ontario to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 June 2026.

Tue 30/66:03 a.m.
YYZ
-
BUF
1 stop13h 23m
Delta
Tue 7/76:05 a.m.
BUF
-
YYZ
1 stop10h 06m
Delta
Deal found 11/6C$ 599
Sat 4/76:00 a.m.
YYZ
-
BUF
1 stop15h 27m
Delta
Tue 7/76:05 a.m.
BUF
-
YYZ
1 stop10h 06m
Delta
Deal found 11/6C$ 617
Fri 3/76:00 a.m.
YYZ
-
BUF
1 stop17h 32m
Delta
Tue 7/76:05 a.m.
BUF
-
YYZ
1 stop10h 06m
Delta
Deal found 11/6C$ 618
Sat 8/86:30 a.m.
YYZ
-
BUF
2 stops27h 59m
Multiple Airlines
Tue 11/89:09 p.m.
BUF
-
YYZ
1 stop22h 56m
Multiple Airlines
Deal found 14/6C$ 624
Thu 20/87:55 a.m.
YUL
-
BUF
1 stop6h 31m
American Airlines
Sun 23/86:00 a.m.
BUF
-
YUL
1 stop15h 44m
American Airlines
Deal found 14/6C$ 629
Thu 20/86:47 p.m.
YUL
-
BUF
2 stops14h 53m
Delta
Sun 23/82:27 p.m.
BUF
-
YUL
1 stop4h 27m
Delta
Deal found 14/6C$ 632
Mon 26/106:10 a.m.
YUL
-
BUF
1 stop14h 21m
United Airlines
Tue 27/106:00 a.m.
BUF
-
YUL
1 stop10h 21m
United Airlines
Deal found 12/6C$ 647
Mon 26/109:28 a.m.
YUL
-
BUF
1 stop5h 31m
Delta
Tue 27/107:15 p.m.
BUF
-
YUL
2 stops17h 00m
Delta
Deal found 14/6C$ 650
Tue 18/82:29 p.m.
YUL
-
BUF
1 stop9h 00m
Delta
Sun 23/88:57 a.m.
BUF
-
YUL
1 stop7h 23m
Delta
Deal found 10/6C$ 652
Tue 21/710:30 a.m.
YUL
-
BUF
1 stop10h 37m
American Airlines
Thu 23/76:00 a.m.
BUF
-
YUL
1 stop3h 48m
American Airlines
Deal found 12/6C$ 657
Mon 29/66:00 a.m.
YYZ
-
BUF
1 stop17h 32m
Delta
Tue 7/76:05 a.m.
BUF
-
YYZ
1 stop10h 06m
Delta
Deal found 11/6C$ 664
Wed 8/75:50 p.m.
YYZ
-
BUF
2 stops16h 39m
Multiple Airlines
Wed 15/77:57 p.m.
BUF
-
YYZ
1 stop18h 33m
Multiple Airlines
Deal found 10/6C$ 666

Find flight deals from Ontario to Buffalo

Keep the following information in mind while searching for Ontario to Buffalo flight deals. Data was last updated 15 June 2026.

Round-trip from

C$ 599

One-way from

C$ 313
Delta
  • Delta
  • 30/6-7/7
  • 2 total stops
  • 23h 29m total
  • Ontario to Buffalo
Search Deals
11/8
  • 11/8
  • 2 total stops
  • 24h 13m total
  • Ontario to Buffalo
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Buffalo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 15 June 2026.
Use the filters below to find and compare flights from Ontario to Buffalo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Sat 8/8

6:30 a.m.-10:29 a.m.

2 stops27h 59m

Buffalo

Tue 11/8

9:09 p.m.-8:05 p.m.

1 stop22h 56m

C$ 624

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Thu 20/8

6:47 p.m.-9:40 a.m.

2 stops14h 53m

Buffalo

Sun 23/8

2:27 p.m.-6:54 p.m.

1 stop4h 27m

C$ 632

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Mon 26/10

6:10 a.m.-8:31 p.m.

1 stop14h 21m

Buffalo

Tue 27/10

6:00 a.m.-4:21 p.m.

1 stop10h 21m

C$ 647

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Mon 26/10

9:28 a.m.-2:59 p.m.

1 stop5h 31m

Buffalo

Tue 27/10

7:15 p.m.-12:15 p.m.

2 stops17h 00m

C$ 650

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Tue 18/8

2:29 p.m.-11:29 p.m.

1 stop9h 00m

Buffalo

Sun 23/8

8:57 a.m.-4:20 p.m.

1 stop7h 23m

C$ 652

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Sat 15/8

6:00 a.m.-3:14 p.m.

1 stop9h 14m

Buffalo

Wed 19/8

6:01 a.m.-6:54 p.m.

1 stop12h 53m

C$ 694

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Wed 28/10

2:30 p.m.-11:50 p.m.

1 stop9h 20m

Buffalo

Sun 1/11

4:00 p.m.-11:14 a.m.

1 stop19h 14m

C$ 698

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Sat 4/7

9:45 a.m.-4:41 p.m.

1 stop6h 56m

Buffalo

Sat 11/7

10:57 a.m.-5:30 p.m.

1 stop6h 33m

C$ 706

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Sat 15/8

8:45 a.m.-9:07 p.m.

2 stops12h 22m

Buffalo

Wed 19/8

6:55 a.m.-5:52 p.m.

2 stops10h 57m

C$ 715

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Mon 26/10

11:10 a.m.-8:31 p.m.

2 stops9h 21m

Buffalo

Tue 27/10

10:50 a.m.-8:53 p.m.

2 stops10h 03m

C$ 743

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/6

Showing 1-10 of 59 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Ontario to Buffalo

Have a flexible travel schedule? Discover the best time to fly to Buffalo from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Buffalo
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Buffalo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Buffalo from Ontario?

    If you book a flight to Buffalo from Ontario, you will be flying to Buffalo, which is the city’s only airport. Buffalo (BUF) is located 13.4 km from the centre of Buffalo.

  • How long is the flight from Region of Ontario to Buffalo?

    Delta and United Airlines can get you from Region of Ontario to Buffalo in just under 14h 21m. Your travel time can differ by up to 32m. There are 486 km between Region of Ontario and Buffalo. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Region of Ontario to Buffalo?

    The most popular flight routes from Region of Ontario to Buffalo are Toronto Pearson Intl - Buffalo, Toronto Island - Buffalo and Montreal Pierre Elliott Trudeau Intl - Buffalo.

  • Can I find deals for flights from Ontario to Buffalo that include hotel bookings?

    Yes. In addition to deals on Ontario to Buffalo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Buffalo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Buffalo.

  • Can I find deals for business class flights from Ontario to Buffalo?

    Yes. Cheapflights offers flight deals from Ontario to Buffalo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Batavia
Cheektowaga
Amherst
Williamsville

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Buffalo

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Newark flights
Toronto Island to Newark flights
Pearson Intl to John F Kennedy Intl flights
Pearson Intl to LaGuardia flights
Toronto Island to LaGuardia flights
Toronto Island to John F Kennedy Intl flights
Vancouver Intl to John F Kennedy Intl flights
Vancouver Intl to Newark flights
Pierre Elliott Trudeau Intl to Newark flights
Pierre Elliott Trudeau Intl to LaGuardia flights
Hamilton to Newark flights
Pierre Elliott Trudeau Intl to John F Kennedy Intl flights
Vancouver Intl to LaGuardia flights
Calgary to Newark flights
Calgary to John F Kennedy Intl flights
Abbotsford to John F Kennedy Intl flights
Ottawa to Newark flights
Ottawa to LaGuardia flights
Hamilton to John F Kennedy Intl flights
Halifax to Newark flights
Ottawa to John F Kennedy Intl flights
Calgary to LaGuardia flights
Abbotsford to LaGuardia flights
Québec City to Newark flights
Edmonton to John F Kennedy Intl flights
Region of Waterloo Intl to John F Kennedy Intl flights
Edmonton to Newark flights
Edmonton to LaGuardia flights
Abbotsford to Newark flights
Region of Waterloo Intl to Newark flights
Halifax to LaGuardia flights
Québec City to LaGuardia flights
Winnipeg to Newark flights
Winnipeg to John F Kennedy Intl flights
Halifax to John F Kennedy Intl flights
Winnipeg to LaGuardia flights
Hamilton to LaGuardia flights
Québec City to John F Kennedy Intl flights
Pearson Intl to Buffalo flights
Saskatoon to LaGuardia flights
Windsor to Newark flights
Moncton to Newark flights
Moncton to LaGuardia flights
Regina to Newark flights
Saskatoon to Newark flights
Saskatoon to John F Kennedy Intl flights
Regina to LaGuardia flights
Pearson Intl to Stewart flights
Pearson Intl to Albany flights
Victoria to Newark flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Buffalo?

Cheapflights helps you search for flights from Ontario to Buffalo via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Buffalo?

Cheapflights simply makes it quick and affordable to book flights from Ontario to Buffalo by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Ontario to Buffalo with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to Buffalo, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ontario to Buffalo become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Buffalo from Ontario today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.