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Cheap flights from Ontario to Buffalo from C$ 248

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 30/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BUF
15 Oct — 22 Oct1
1 adult
1 adult, Economy

Cheap 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 September 2025.

Round-trip from

C$ 448

One-way from

C$ 248
25/10-27/10
  • 25/10-27/10
  • 3 total stops
  • 29h 57m total
  • Ontario to Buffalo
Search Deals
30/10
  • 30/10
  • 2 total stops
  • 28h 59m total
  • Ontario to Buffalo
Search Deals

Find flight deals from Ontario to Buffalo

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 September 2025.

Sat 25/107:45 a.m.YYZ - BUF
2 stops13h 05mMultiple Airlines
Mon 27/109:13 p.m.BUF - YYZ
1 stop16h 52mMultiple Airlines
Deal found 14/9C$ 448
Wed 29/107:30 p.m.YUL - BUF
1 stop13h 58mDelta
Wed 5/116:03 a.m.BUF - YUL
1 stop26h 34mDelta
Deal found 14/9C$ 476
Fri 14/1110:55 a.m.YYZ - BUF
2 stops10h 13mMultiple Airlines
Sun 16/116:59 p.m.BUF - YYZ
1 stop16h 47mMultiple Airlines
Deal found 13/9C$ 497
Sat 1/112:45 p.m.YUL - BUF
2 stops33h 58mDelta
Wed 5/116:03 a.m.BUF - YUL
1 stop7h 32mDelta
Deal found 14/9C$ 519
Mon 6/109:50 a.m.YYZ - BUF
1 stop8h 24mMultiple Airlines
Mon 13/109:13 p.m.BUF - YYZ
1 stop26h 28mMultiple Airlines
Deal found 14/9C$ 520
Fri 24/107:30 p.m.YUL - BUF
1 stop17h 31mDelta
Thu 30/105:45 p.m.BUF - YUL
1 stop19h 50mDelta
Deal found 14/9C$ 522
Sun 12/1012:00 p.m.YTZ - BUF
2 stops10h 42mMultiple Airlines
Sun 19/106:30 a.m.BUF - YTZ
1 stop7h 10mMultiple Airlines
Deal found 14/9C$ 525
Sun 12/106:30 a.m.YYZ - BUF
2 stops28h 49mMultiple Airlines
Sun 19/109:13 p.m.BUF - YYZ
1 stop26h 42mMultiple Airlines
Deal found 14/9C$ 547
Wed 8/102:30 p.m.YYZ - BUF
1 stop8h 27mDelta
Wed 15/106:03 a.m.BUF - YYZ
2 stops11h 16mDelta
Deal found 14/9C$ 552
Thu 18/99:50 a.m.YYZ - BUF
2 stops8h 56mMultiple Airlines
Thu 25/97:41 p.m.BUF - YYZ
1 stop28h 00mMultiple Airlines
Deal found 13/9C$ 563
Sat 18/1010:30 a.m.YUL - BUF
1 stop7h 11mAmerican Airlines
Mon 27/106:23 p.m.BUF - YUL
1 stop15h 27mAmerican Airlines
Deal found 13/9C$ 566
Wed 24/99:50 a.m.YYZ - BUF
2 stops25h 32mMultiple Airlines
Thu 25/97:41 p.m.BUF - YYZ
1 stop28h 00mMultiple Airlines
Deal found 14/9C$ 584

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 September 2025.
Use the filters below to find and compare flights from Ontario to Buffalo that are best for you.

Fly from

Ontario

Fly to

Buffalo

Route

Depart

Return

Price

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Sat 25/10

7:45 a.m.-8:50 p.m.

2 stops13h 05m

Buffalo

Mon 27/10

9:13 p.m.-2:05 p.m.

1 stop16h 52m

C$ 448

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Wed 29/10

7:30 p.m.-9:28 a.m.

1 stop13h 58m

Buffalo

Wed 5/11

6:03 a.m.-8:37 a.m.

1 stop26h 34m

C$ 476

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Fri 14/11

10:55 a.m.-9:08 p.m.

2 stops10h 13m

Buffalo

Sun 16/11

6:59 p.m.-11:46 a.m.

1 stop16h 47m

C$ 497

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Sat 1/11

2:45 p.m.-12:43 a.m.

2 stops33h 58m

Buffalo

Wed 5/11

6:03 a.m.-1:35 p.m.

1 stop7h 32m

C$ 519

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Sat 1/11

2:45 p.m.-12:43 a.m.

2 stops33h 58m

Buffalo

Tue 4/11

11:15 a.m.-11:48 p.m.

2 stops12h 33m

C$ 519

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Mon 6/10

9:50 a.m.-6:14 p.m.

1 stop8h 24m

Buffalo

Mon 13/10

9:13 p.m.-11:41 p.m.

1 stop26h 28m

C$ 520

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Fri 24/10

7:30 p.m.-1:01 p.m.

1 stop17h 31m

Buffalo

Thu 30/10

5:45 p.m.-1:35 p.m.

1 stop19h 50m

C$ 522

TorontoBuffalo

YTZ - BUF

YTZBUF

Toronto Island

Sun 12/10

12:00 p.m.-10:42 p.m.

2 stops10h 42m

Buffalo

Sun 19/10

6:30 a.m.-1:40 p.m.

1 stop7h 10m

C$ 525

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Sun 12/10

6:30 a.m.-11:19 a.m.

2 stops28h 49m

Buffalo

Sun 19/10

9:13 p.m.-11:55 p.m.

1 stop26h 42m

C$ 547

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Wed 8/10

2:30 p.m.-10:57 p.m.

1 stop8h 27m

Buffalo

Wed 15/10

6:03 a.m.-5:19 p.m.

2 stops11h 16m

C$ 552

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/9

Showing 1-10 of 35 results
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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

What is the cheapest time of day to fly from ON to BUF?

Find hourly flight availability from Ontario to Buffalo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Buffalo as you normally would.

How much does it cost to fly round-trip from Region of Ontario to Buffalo?

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 13h 58m. Your travel time can differ by up to . There are 486 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
Cheektowaga
Tonawanda
Batavia
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.
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Top airline flying from Ontario to Buffalo

Discover the top airline that operate flights from Ontario to Buffalo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 15 September 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 637AverageC$ 893FlexibilityNo cancel feeOn-time69%
Search United Airlines 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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