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Cheap flights from Ontario to Buffalo from C$ 237

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 17/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BUF
31 May — 7 Jun1
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 1 May 2026.

Tue 26/57:44 p.m.
YUL
-
BUF
1 stop18h 23m
Delta
Tue 2/69:45 a.m.
BUF
-
YUL
1 stop22h 54m
Delta
Deal found 26/4C$ 494
Mon 22/61:30 p.m.
YYZ
-
BUF
2 stops21h 25m
Multiple Airlines
Sun 28/69:02 p.m.
BUF
-
YYZ
1 stop23h 03m
Multiple Airlines
Deal found 27/4C$ 501
Tue 2/69:30 a.m.
YUL
-
BUF
1 stop7h 31m
Delta
Sat 6/66:04 a.m.
BUF
-
YUL
1 stop26h 35m
Delta
Deal found 26/4C$ 539
Tue 26/59:50 a.m.
YYZ
-
BUF
1 stop9h 09m
Multiple Airlines
Tue 2/67:52 p.m.
BUF
-
YYZ
2 stops26h 03m
Multiple Airlines
Deal found 27/4C$ 576
Wed 10/69:50 a.m.
YYZ
-
BUF
1 stop9h 22m
Multiple Airlines
Sun 14/69:02 p.m.
BUF
-
YYZ
1 stop23h 03m
Multiple Airlines
Deal found 30/4C$ 577
Fri 12/69:50 a.m.
YYZ
-
BUF
1 stop9h 22m
Multiple Airlines
Fri 19/67:57 p.m.
BUF
-
YYZ
1 stop24h 08m
Multiple Airlines
Deal found 28/4C$ 580
Tue 26/510:30 a.m.
YUL
-
BUF
1 stop10h 32m
American Airlines
Tue 2/612:51 p.m.
BUF
-
YUL
1 stop8h 47m
American Airlines
Deal found 28/4C$ 581
Fri 22/57:51 a.m.
YUL
-
BUF
1 stop11h 22m
American Airlines
Sat 30/52:27 p.m.
BUF
-
YUL
1 stop19h 29m
American Airlines
Deal found 30/4C$ 585
Sun 10/56:00 a.m.
YUL
-
BUF
1 stop5h 24m
Delta
Wed 13/56:04 a.m.
BUF
-
YUL
1 stop7h 35m
Delta
Deal found 26/4C$ 588
Tue 9/66:00 a.m.
YUL
-
BUF
1 stop5h 24m
Delta
Wed 10/62:30 p.m.
BUF
-
YUL
1 stop4h 24m
Delta
Deal found 27/4C$ 599
Wed 13/54:50 p.m.
YYZ
-
BUF
1 stop25h 56m
Multiple Airlines
Fri 29/52:49 p.m.
BUF
-
YYZ
2 stops23h 16m
Multiple Airlines
Deal found 28/4C$ 600
Sun 31/59:50 a.m.
YYZ
-
BUF
1 stop9h 09m
Multiple Airlines
Wed 3/62:49 p.m.
BUF
-
YYZ
2 stops32h 51m
Multiple Airlines
Deal found 28/4C$ 607

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 1 May 2026.

Round-trip from

C$ 494

One-way from

C$ 237
Delta
  • Delta
  • 26/5-2/6
  • 2 total stops
  • 41h 17m total
  • Ontario to Buffalo
Search Deals
17/6
  • 17/6
  • 1 total stop
  • 9h 22m 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 1 May 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

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Tue 26/5

7:44 p.m.-2:07 p.m.

1 stop18h 23m

Buffalo

Tue 2/6

9:45 a.m.-8:39 a.m.

1 stop22h 54m

C$ 494

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Mon 8/6

6:03 a.m.-7:24 p.m.

1 stop13h 21m

Buffalo

Wed 10/6

6:03 a.m.-4:15 p.m.

1 stop10h 12m

C$ 529

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Wed 10/6

2:40 p.m.-11:32 p.m.

1 stop8h 52m

Buffalo

Wed 17/6

4:01 p.m.-11:28 p.m.

1 stop7h 27m

C$ 567

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Wed 10/6

9:50 a.m.-7:12 p.m.

1 stop9h 22m

Buffalo

Sun 14/6

9:02 p.m.-8:05 p.m.

1 stop23h 03m

C$ 577

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Tue 26/5

10:30 a.m.-9:02 p.m.

1 stop10h 32m

Buffalo

Tue 2/6

12:51 p.m.-9:38 p.m.

1 stop8h 47m

C$ 581
Quickest round-trip

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Tue 9/6

6:00 a.m.-11:24 a.m.

1 stop5h 24m

Buffalo

Wed 10/6

2:30 p.m.-6:54 p.m.

1 stop4h 24m

C$ 599

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Sun 14/6

5:07 p.m.-11:59 p.m.

1 stop6h 52m

Buffalo

Sun 21/6

6:29 a.m.-11:57 a.m.

1 stop5h 28m

C$ 607

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Sun 7/6

6:03 a.m.-12:38 a.m.

1 stop18h 35m

Buffalo

Thu 11/6

10:00 a.m.-5:39 p.m.

1 stop7h 39m

C$ 617

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Thu 11/6

9:30 a.m.-5:30 p.m.

1 stop8h 00m

Buffalo

Thu 18/6

10:20 a.m.-6:54 p.m.

1 stop8h 34m

C$ 649

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Wed 27/5

8:40 a.m.-6:05 p.m.

1 stop9h 25m

Buffalo

Wed 3/6

6:00 a.m.-9:34 p.m.

1 stop15h 34m

C$ 724

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 52 resultsSorted by cheapest first
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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, American Airlines, and United Airlines can get you from Region of Ontario to Buffalo in just under 9h 25m. Your travel time can differ by up to 8h 58m. There are 109 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
Tonawanda
Batavia
Cheektowaga
Amherst
Williamsville

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Alternative routes for Ontario to Buffalo

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

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