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Cheap flights from Ontario to Buffalo from C$ 243

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BUF
11 Apr — 18 Apr1
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 12 March 2026.

Thu 16/47:55 a.m.
YYZ
-
BUF
1 stop15h 36m
Delta
Mon 20/43:33 p.m.
BUF
-
YYZ
1 stop8h 10m
Delta
Deal found 8/3C$ 489
Thu 23/44:35 p.m.
YUL
-
BUF
1 stop17h 32m
Multiple Airlines
Thu 30/41:08 p.m.
BUF
-
YUL
2 stops11h 37m
Multiple Airlines
Deal found 9/3C$ 509
Sat 4/46:00 a.m.
YYZ
-
BUF
1 stop13h 13m
Delta
Sat 11/46:02 a.m.
BUF
-
YYZ
1 stop14h 25m
Delta
Deal found 7/3C$ 513
Sun 5/46:00 a.m.
YYZ
-
BUF
1 stop18h 14m
Delta
Sun 12/47:00 a.m.
BUF
-
YYZ
1 stop15h 58m
Delta
Deal found 8/3C$ 516
Sat 18/411:00 a.m.
YTZ
-
BUF
1 stop10h 17m
Multiple Airlines
Mon 27/47:00 a.m.
BUF
-
YTZ
1 stop13h 09m
Multiple Airlines
Deal found 10/3C$ 519
Sat 18/47:20 a.m.
YYZ
-
BUF
1 stop13h 57m
Multiple Airlines
Mon 27/47:00 a.m.
BUF
-
YYZ
1 stop12h 35m
Multiple Airlines
Deal found 10/3C$ 523
Wed 15/42:29 p.m.
YUL
-
BUF
1 stop9h 02m
Delta
Sat 18/47:59 p.m.
BUF
-
YUL
2 stops20h 16m
Delta
Deal found 8/3C$ 531
Tue 7/46:00 a.m.
YYZ
-
BUF
1 stop8h 19m
Delta
Tue 14/410:13 a.m.
BUF
-
YYZ
1 stop7h 56m
Delta
Deal found 10/3C$ 535
Tue 7/47:10 a.m.
YYZ
-
BUF
1 stop27h 17m
Multiple Airlines
Mon 27/412:32 p.m.
BUF
-
YYZ
2 stops49h 33m
Multiple Airlines
Deal found 8/3C$ 539
Thu 16/42:29 p.m.
YUL
-
BUF
1 stop9h 02m
Delta
Wed 22/410:13 a.m.
BUF
-
YUL
1 stop8h 38m
Delta
Deal found 10/3C$ 554
Tue 7/47:10 a.m.
YYZ
-
BUF
1 stop27h 17m
Multiple Airlines
Tue 14/41:56 p.m.
BUF
-
YYZ
2 stops21h 39m
Multiple Airlines
Deal found 10/3C$ 576
Thu 9/47:50 a.m.
YYZ
-
BUF
1 stop25h 52m
Delta
Sun 12/47:00 a.m.
BUF
-
YYZ
1 stop15h 58m
Delta
Deal found 9/3C$ 582

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 12 March 2026.

Round-trip from

C$ 489

One-way from

C$ 243
Delta
  • Delta
  • 16/4-20/4
  • 2 total stops
  • 23h 46m total
  • Ontario to Buffalo
Search Deals
20/4
  • 20/4
  • 2 total stops
  • 30h 12m 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 12 March 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

Mon 6/4

7:50 a.m.-4:51 p.m.

1 stop9h 01m

Buffalo

Mon 13/4

3:33 p.m.-11:43 p.m.

1 stop8h 10m

C$ 489

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Thu 16/4

7:55 a.m.-11:31 p.m.

1 stop15h 36m

Buffalo

Mon 20/4

3:33 p.m.-11:43 p.m.

1 stop8h 10m

C$ 489

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Sun 5/4

6:00 a.m.-12:14 a.m.

1 stop18h 14m

Buffalo

Sun 12/4

7:00 a.m.-10:58 p.m.

1 stop15h 58m

C$ 516

TorontoBuffalo

YTZ - BUF

YTZBUF

Toronto Island

Sat 18/4

11:00 a.m.-9:17 p.m.

1 stop10h 17m

Buffalo

Mon 27/4

7:00 a.m.-8:09 p.m.

1 stop13h 09m

C$ 519

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Wed 15/4

2:29 p.m.-11:31 p.m.

1 stop9h 02m

Buffalo

Sat 18/4

7:59 p.m.-4:15 p.m.

2 stops20h 16m

C$ 532

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Fri 17/4

7:41 p.m.-12:51 p.m.

1 stop17h 10m

Buffalo

Sun 19/4

5:30 p.m.-1:39 p.m.

1 stop20h 09m

C$ 593

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Mon 6/4

5:20 p.m.-12:17 p.m.

2 stops18h 57m

Buffalo

Mon 13/4

8:16 p.m.-2:16 p.m.

1 stop18h 00m

C$ 608

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Thu 9/4

6:00 a.m.-11:44 a.m.

1 stop5h 44m

Buffalo

Thu 16/4

6:00 a.m.-6:51 p.m.

1 stop12h 51m

C$ 622

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Sat 2/5

6:00 a.m.-11:45 a.m.

1 stop5h 45m

Buffalo

Tue 5/5

10:13 a.m.-6:51 p.m.

1 stop8h 38m

C$ 648

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Fri 27/3

6:00 a.m.-8:46 p.m.

1 stop14h 46m

Buffalo

Sun 29/3

10:30 a.m.-12:13 a.m.

1 stop13h 43m

C$ 667

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/3

Showing 1-10 of 47 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 can get you from Region of Ontario to Buffalo in just under 9h 01m. Your travel time can differ by up to . There are 109 km between Region of Ontario and Buffalo.

  • 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, Montreal Pierre Elliott Trudeau Intl - Buffalo and Toronto Island - 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
Williamsville
Amherst

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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
Pearson Intl to Newark flights
Pearson Intl to John F Kennedy Intl flights
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Pierre Elliott Trudeau Intl to Newark flights
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Pierre Elliott Trudeau Intl to John F Kennedy Intl flights
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Vancouver Intl to LaGuardia flights
Calgary to Newark flights
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Ottawa to John F Kennedy Intl flights
Ottawa to LaGuardia flights
Hamilton to LaGuardia flights
Abbotsford to LaGuardia flights
Edmonton to John F Kennedy Intl flights
Halifax to John F Kennedy Intl flights
Québec City to John F Kennedy Intl flights
Region of Waterloo Intl to John F Kennedy Intl flights
Edmonton to Newark flights
Abbotsford to Newark flights
Edmonton to LaGuardia flights
Halifax to LaGuardia flights
Winnipeg to Newark flights
Winnipeg to John F Kennedy Intl flights
Winnipeg to LaGuardia flights
Victoria to Newark flights
Saskatoon to LaGuardia flights
Québec City to LaGuardia flights
Comox to Newark flights
Pearson Intl to White Plains flights
London to Newark flights
London to John F Kennedy Intl flights
London to LaGuardia flights
Saskatoon to John F Kennedy Intl flights
Victoria to LaGuardia flights
Vancouver Intl to Buffalo flights
Saskatoon to Newark flights
Deer Lake to Newark flights
Deer Lake to LaGuardia flights

Fly with Cheapflights

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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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