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Cheap flights from Ontario to Buffalo from C$ 275

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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BUF
17 Jun — 24 Jun1
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 12 June 2025.

Round-trip from

C$ 498

One-way from

C$ 275
Delta
  • Delta
  • 2/8-4/8
  • 2 total stops
  • 35h 31m total
  • Ontario to Buffalo
Search Deals
Delta
  • Delta
  • 12/7
  • 1 total stop
  • 15h 09m 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 12 June 2025.

Sat 2/87:55 a.m.YYZ - BUF
1 stop13h 14mDelta
Mon 4/85:56 p.m.BUF - YYZ
1 stop22h 17mDelta
Deal found 10/6C$ 498
Tue 8/76:00 a.m.YUL - BUF
1 stop17h 19mDelta
Tue 15/76:04 a.m.BUF - YUL
1 stop10h 03mDelta
Deal found 10/6C$ 505
Mon 1/99:00 a.m.YYZ - BUF
1 stop7h 52mUnited Airlines
Wed 3/910:55 a.m.BUF - YYZ
1 stop13h 03mUnited Airlines
Deal found 10/6C$ 536
Thu 7/87:35 a.m.YYZ - BUF
2 stops9h 46mBritish Airways
Mon 11/86:29 a.m.BUF - YYZ
1 stop8h 05mBritish Airways
Deal found 12/6C$ 567
Fri 11/74:00 p.m.YYZ - BUF
1 stop16h 52mMultiple Airlines
Mon 14/78:50 a.m.BUF - YYZ
1 stop15h 09mMultiple Airlines
Deal found 11/6C$ 600
Thu 10/711:00 a.m.YYZ - BUF
1 stop12h 59mAmerican Airlines
Mon 14/76:00 a.m.BUF - YYZ
1 stop8h 44mAmerican Airlines
Deal found 11/6C$ 606
Thu 10/711:40 a.m.YYZ - BUF
1 stop22h 52mSun Country Air
Sun 13/711:23 a.m.BUF - YYZ
1 stop5h 27mSun Country Air
Deal found 10/6C$ 613
Sat 27/910:34 a.m.YUL - BUF
1 stop7h 05mAmerican Airlines
Sun 28/95:26 p.m.BUF - YUL
1 stop18h 20mAmerican Airlines
Deal found 11/6C$ 634
Fri 11/76:35 a.m.YUL - BUF
2 stops17h 09mUnited Airlines
Sun 13/72:55 p.m.BUF - YUL
2 stops17h 40mUnited Airlines
Deal found 11/6C$ 636
Sat 27/98:20 a.m.YUL - BUF
1 stop8h 33mAir Canada
Sun 28/911:00 a.m.BUF - YUL
2 stops10h 46mAir Canada
Deal found 11/6C$ 742
Thu 10/78:45 a.m.YTZ - BUF
3 stops25h 47mMultiple Airlines
Mon 14/711:47 a.m.BUF - YTZ
2 stops29h 56mMultiple Airlines
Deal found 10/6C$ 742
Sat 12/77:00 a.m.YUL - BUF
1 stop16h 59mWestJet
Sun 13/76:30 a.m.BUF - YUL
1 stop16h 38mWestJet
Deal found 10/6C$ 748

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 June 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 2/8

7:55 a.m.-9:09 p.m.

1 stop13h 14m

Buffalo

Mon 4/8

5:56 p.m.-4:13 p.m.

1 stop22h 17m

C$ 498

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Tue 8/7

6:00 a.m.-11:19 p.m.

1 stop17h 19m

Buffalo

Tue 15/7

6:04 a.m.-4:07 p.m.

1 stop10h 03m

C$ 505

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Mon 1/9

9:00 a.m.-4:52 p.m.

1 stop7h 52m

Buffalo

Wed 3/9

10:55 a.m.-11:58 p.m.

1 stop13h 03m

C$ 536

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Thu 7/8

7:35 a.m.-5:21 p.m.

2 stops9h 46m

Buffalo

Mon 11/8

6:29 a.m.-2:34 p.m.

1 stop8h 05m

C$ 567

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Fri 11/7

4:00 p.m.-8:52 a.m.

1 stop16h 52m

Buffalo

Mon 14/7

8:50 a.m.-11:59 p.m.

1 stop15h 09m

C$ 600

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Thu 10/7

11:00 a.m.-11:59 p.m.

1 stop12h 59m

Buffalo

Mon 14/7

6:00 a.m.-2:44 p.m.

1 stop8h 44m

C$ 606

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Thu 10/7

11:40 a.m.-10:32 a.m.

1 stop22h 52m

Buffalo

Sun 13/7

11:23 a.m.-4:50 p.m.

1 stop5h 27m

C$ 613

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Sat 27/9

10:34 a.m.-5:39 p.m.

1 stop7h 05m

Buffalo

Sun 28/9

5:26 p.m.-11:46 a.m.

1 stop18h 20m

C$ 634

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Fri 11/7

6:35 a.m.-11:44 p.m.

2 stops17h 09m

Buffalo

Sun 13/7

2:55 p.m.-8:35 a.m.

2 stops17h 40m

C$ 636

MontrealBuffalo

YUL - BUF

YULBUF

Montreal Pierre Elliott Trudeau Intl

Sat 27/9

8:20 a.m.-4:53 p.m.

1 stop8h 33m

Buffalo

Sun 28/9

11:00 a.m.-9:46 p.m.

2 stops10h 46m

C$ 742

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 30 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 12 June 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.

Rainfall in Buffalo by month

Plan your trip to Buffalo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Buffalo ranges from 64.0 - 102.0 mm per month. November is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Buffalo when rainfall is around 64.0 mm.

Temperature in Buffalo by month

Plan your trip to Buffalo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Buffalo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -4.0 C).

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 12 June 2025.
Peruse reviews from past customers who have flown with Delta, KLM and United Airlines from Ontario to Buffalo to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
WestJet
7.2
Good
2,868 reviews
Delta
8.0
Very good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!

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$ 275. However, be on the lookout for offers from KLM and United Airlines, 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 Ontario?

Book flights to Ontario 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
Pearson Intl to John F Kennedy Intl flights
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Pierre Elliott Trudeau Intl to John F Kennedy Intl flights
Pierre Elliott Trudeau Intl to LaGuardia flights
Pierre Elliott Trudeau Intl to Newark flights
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Saskatoon to LaGuardia flights
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Pierre Elliott Trudeau Intl to White Plains flights
Pearson Intl to Buffalo flights
Regina to John F Kennedy Intl flights
London to Newark flights
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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 12 June 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 674AverageC$ 898FlexibilityNo 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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