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Cheap flights from Ontario to Buffalo from C$ 250

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BUF
5 Aug — 12 Aug1
1 adult

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 31 July 2025.

Round-trip from

C$ 488

One-way from

C$ 250
Delta
  • Delta
  • 5/9-7/9
  • 2 total stops
  • 22h 27m total
  • Ontario to Buffalo
Search Deals
18/9
  • 18/9
  • 1 total stop
  • 10h 12m 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 31 July 2025.

Wed 27/86:04 a.m.YYZ - BUF
1 stop9h 14mDelta
Wed 3/910:41 a.m.BUF - YYZ
1 stop10h 02mDelta
Deal found 30/7C$ 504
Wed 27/86:00 a.m.YUL - BUF
1 stop7h 39mDelta
Wed 3/92:21 p.m.BUF - YUL
1 stop7h 27mDelta
Deal found 30/7C$ 556
Fri 12/97:15 a.m.YYZ - BUF
1 stop10h 59mMultiple Airlines
Fri 19/96:59 p.m.BUF - YYZ
1 stop28h 42mMultiple Airlines
Deal found 29/7C$ 574
Sat 13/912:31 p.m.YUL - BUF
1 stop9h 19mAmerican Airlines
Sat 20/97:35 a.m.BUF - YUL
1 stop28h 11mAmerican Airlines
Deal found 30/7C$ 576
Thu 11/97:20 a.m.YYZ - BUF
1 stop10h 35mAmerican Airlines
Mon 15/97:30 a.m.BUF - YYZ
1 stop15h 55mAmerican Airlines
Deal found 29/7C$ 619
Sat 13/91:20 p.m.YUL - BUF
2 stops10h 39mUnited Airlines
Sat 20/910:30 a.m.BUF - YUL
1 stop9h 15mUnited Airlines
Deal found 30/7C$ 650
Tue 26/812:15 p.m.YYZ - BUF
1 stop11h 44mUnited Airlines
Tue 2/98:00 p.m.BUF - YYZ
1 stop14h 04mUnited Airlines
Deal found 29/7C$ 679
Sat 6/98:20 a.m.YUL - BUF
1 stop8h 32mMultiple Airlines
Sat 13/910:55 a.m.BUF - YUL
1 stop10h 34mMultiple Airlines
Deal found 30/7C$ 681
Sat 20/98:15 a.m.YUL - BUF
2 stops8h 37mAir Canada
Sun 28/97:07 a.m.BUF - YUL
1 stop6h 40mAir Canada
Deal found 31/7C$ 792
Wed 27/86:45 a.m.YUL - BUF
2 stops17h 12mWestJet
Wed 3/912:45 p.m.BUF - YUL
1 stop10h 23mWestJet
Deal found 30/7C$ 796
Mon 25/88:15 a.m.YYZ - BUF
1 stop5h 07mAir Canada
Mon 25/85:54 p.m.BUF - YYZ
1 stop5h 16mAir Canada
Deal found 30/7C$ 1,299

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 31 July 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

Wed 27/8

12:14 p.m.-11:24 p.m.

2 stops11h 10m

Buffalo

Wed 3/9

10:41 a.m.-8:43 p.m.

1 stop10h 02m

C$ 504

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Wed 27/8

6:00 a.m.-1:39 p.m.

1 stop7h 39m

Buffalo

Wed 3/9

2:21 p.m.-9:48 p.m.

1 stop7h 27m

C$ 556

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Sat 13/9

12:31 p.m.-9:50 p.m.

1 stop9h 19m

Buffalo

Sat 20/9

7:35 a.m.-11:46 a.m.

1 stop28h 11m

C$ 576

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Thu 28/8

7:15 a.m.-7:23 p.m.

1 stop12h 08m

Buffalo

Thu 4/9

7:41 p.m.-1:52 p.m.

1 stop18h 11m

C$ 580

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Sat 13/9

1:20 p.m.-11:59 p.m.

2 stops10h 39m

Buffalo

Sat 20/9

10:30 a.m.-7:45 p.m.

1 stop9h 15m

C$ 650

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Sat 6/9

8:20 a.m.-4:52 p.m.

1 stop8h 32m

Buffalo

Sat 13/9

10:55 a.m.-9:29 p.m.

1 stop10h 34m

C$ 681

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Sun 14/9

7:00 a.m.-4:52 p.m.

1 stop9h 52m

Buffalo

Sun 21/9

7:05 a.m.-3:46 p.m.

1 stop8h 41m

C$ 686

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Sat 20/9

8:15 a.m.-4:52 p.m.

2 stops8h 37m

Buffalo

Sun 28/9

7:07 a.m.-1:47 p.m.

1 stop6h 40m

C$ 792

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Wed 27/8

6:45 a.m.-11:57 p.m.

2 stops17h 12m

Buffalo

Wed 3/9

12:45 p.m.-11:08 p.m.

1 stop10h 23m

C$ 796

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Fri 8/8

3:28 p.m.-5:20 p.m.

1 stop25h 52m

Buffalo

Tue 12/8

5:30 a.m.-12:01 p.m.

1 stop6h 31m

C$ 1,077

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/7

Showing 1-10 of 23 results
1
2
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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 31 July 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.

Reviews of airlines servicing Buffalo

Get insights into the airlines that provide service to Buffalo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buffalo. Reviews last updated 31 July 2025.
Check out reviews from past customers who have flown with Porter Airlines,Delta, andUnited Airlines from Ontario to Buffalo to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
318 reviews
Check prices

Overall

8.0

Crew

8.7

Boarding

8.2

Entertainment

7.0

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
8.0
Very good
318 reviews
Porter Airlines
8.0
Very good
318 reviews
Check prices

Overall

8.0

Crew

8.7

Boarding

8.2

Entertainment

7.0

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Delta
8.0
Very good
7,981 reviews
Porter Airlines
8.0
Very good
318 reviews
Check prices

Overall

8.0

Crew

8.7

Boarding

8.2

Entertainment

7.0

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
United Airlines
7.4
Good
8,900 reviews
Porter Airlines
8.0
Very good
318 reviews
Check prices

Overall

8.0

Crew

8.7

Boarding

8.2

Entertainment

7.0

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
8.0
Very good
318 reviews
Check prices

Overall

8.0

Crew

8.7

Boarding

8.2

Entertainment

7.0

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
WestJet
7.2
Good
2,978 reviews
Porter Airlines
8.0
Very good
318 reviews
Check prices

Overall

8.0

Crew

8.7

Boarding

8.2

Entertainment

7.0

Comfort

8.0

Food

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

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.

  • What are the cheapest airlines to fly from Region of Ontario to Buffalo one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as C$ 300. However, be on the lookout for offers from United Airlines and WestJet, as they are both options that can get you from Region of Ontario to Buffalo for a low price.

  • 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.
Pearson Intl to Newark flights
Toronto Island to Newark flights
Pearson Intl to John F Kennedy Intl flights
Pearson Intl to LaGuardia flights
Pierre Elliott Trudeau Intl to Newark flights
Pierre Elliott Trudeau Intl to LaGuardia flights
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Vancouver Intl to John F Kennedy Intl flights
Pierre Elliott Trudeau Intl to John F Kennedy Intl flights
Vancouver Intl to LaGuardia flights
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Calgary to LaGuardia flights
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Edmonton to LaGuardia flights
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Québec City to John F Kennedy Intl flights
Region of Waterloo Intl to John F Kennedy Intl flights
Québec City to LaGuardia flights
Abbotsford to Newark flights
Vancouver Intl to Buffalo flights
Abbotsford to LaGuardia flights
Winnipeg to John F Kennedy Intl flights
Hamilton to John F Kennedy Intl flights
Winnipeg to Newark flights
Winnipeg to LaGuardia flights
Pearson Intl to White Plains flights
Pearson Intl to Stewart flights
Saskatoon to Newark flights
Pearson Intl to Buffalo flights
London to Newark flights
Saskatoon to John F Kennedy Intl flights
Pierre Elliott Trudeau Intl to White Plains flights
Vancouver Intl to Albany flights
London to LaGuardia flights
Saskatoon to LaGuardia flights
Pierre Elliott Trudeau Intl to Buffalo flights
London to John F Kennedy Intl flights
Moncton to John F Kennedy Intl flights
Victoria to John F Kennedy Intl flights

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 31 July 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 682AverageC$ 915FlexibilityNo 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?

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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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