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Cheap flights from Buffalo to Ontario from C$ 179

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 4/4. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — YYZ
2 Apr — 9 Apr1
1 adult

Cheap flight deals from Buffalo to Ontario

Keep the following information in mind while searching for Buffalo to Ontario flight deals. Data was last updated 28 March 2025.

Round-trip from

C$ 520

One-way from

C$ 179
United Airlines
  • United Airlines
  • 9/5-16/5
  • 2 total stops
  • 19h 31m total
  • Buffalo to Ontario
Search Deals
4/4
  • 4/4
  • 1 total stop
  • 20h 46m total
  • Buffalo to Ontario
Search Deals

Find flight deals from Buffalo to Ontario

Cheapest flights from Buffalo to Ontario
Explore the most affordable flight options available from Buffalo to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2025.

Thu 3/411:24 a.m.BUF - YYZ
1 stop8h 06mMultiple Airlines
Sat 5/48:15 p.m.YYZ - BUF
1 stop14h 09mMultiple Airlines
Deal found 27/3C$ 409
Fri 9/56:45 a.m.BUF - YUL
1 stop5h 10mUnited Airlines
Fri 16/59:15 a.m.YUL - BUF
1 stop14h 21mUnited Airlines
Deal found 27/3C$ 520
Thu 1/55:45 a.m.BUF - YYZ
1 stop5h 50mPorter Airlines
Sun 4/52:50 p.m.YYZ - BUF
1 stop9h 07mPorter Airlines
Deal found 26/3C$ 545
Fri 25/47:00 a.m.BUF - YUL
1 stop10h 26mAir Canada
Sun 27/46:00 a.m.YUL - BUF
2 stops10h 55mAir Canada
Deal found 28/3C$ 569
Fri 25/412:05 p.m.BUF - YUL
1 stop25h 51mWestJet
Sun 27/47:10 a.m.YUL - BUF
1 stop10h 04mWestJet
Deal found 28/3C$ 643
Thu 8/59:51 a.m.BUF - YOW
2 stops38h 31mMultiple Airlines
Wed 14/54:25 p.m.YOW - BUF
1 stop16h 36mMultiple Airlines
Deal found 27/3C$ 647
Sat 10/56:00 a.m.BUF - YYZ
1 stop8h 19mUnited Airlines
Sat 17/512:45 p.m.YYZ - BUF
1 stop21h 00mUnited Airlines
Deal found 26/3C$ 677
Sat 5/42:30 p.m.BUF - YUL
1 stop4h 38mDelta
Mon 7/47:05 a.m.YUL - BUF
1 stop5h 03mDelta
Deal found 27/3C$ 748
Fri 18/47:45 p.m.BUF - YOW
2 stops20h 58mUnited Airlines
Thu 24/410:25 a.m.YOW - BUF
1 stop23h 15mUnited Airlines
Deal found 28/3C$ 762
Mon 5/56:30 p.m.BUF - YTZ
1 stop19h 34mMultiple Airlines
Wed 7/55:55 p.m.YTZ - BUF
1 stop15h 41mMultiple Airlines
Deal found 27/3C$ 790
Fri 9/55:30 a.m.BUF - YUL
2 stops11h 25mAmerican Airlines
Fri 16/510:44 a.m.YUL - BUF
2 stops13h 09mAmerican Airlines
Deal found 27/3C$ 1,126
Thu 1/512:50 p.m.BUF - YYZ
2 stops19h 21mWestJet
Sun 4/511:15 p.m.YYZ - BUF
2 stops18h 25mWestJet
Deal found 27/3C$ 1,795

Cheapflights Fare Finder

Customize your flight search to find flights from Buffalo to Ontario 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 28 March 2025.
Use the filters below to find and compare flights from Buffalo to Ontario that are best for you.

Fly from

Buffalo

Fly to

Ontario

Route

Depart

Return

Price

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Fri 9/5

6:45 a.m.-11:55 a.m.

1 stop5h 10m

Montreal Pierre Elliott Trudeau Intl

Fri 16/5

9:15 a.m.-11:36 p.m.

1 stop14h 21m

C$ 520

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Thu 1/5

5:45 a.m.-11:35 a.m.

1 stop5h 50m

Toronto Pearson Intl

Sun 4/5

2:50 p.m.-11:57 p.m.

1 stop9h 07m

C$ 545

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Mon 5/5

9:51 a.m.-1:55 p.m.

1 stop28h 04m

Toronto Pearson Intl

Wed 7/5

4:00 p.m.-9:01 a.m.

1 stop17h 01m

C$ 559

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Fri 25/4

7:00 a.m.-5:26 p.m.

1 stop10h 26m

Montreal Pierre Elliott Trudeau Intl

Sun 27/4

6:00 a.m.-4:55 p.m.

2 stops10h 55m

C$ 569

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Fri 25/4

12:05 p.m.-1:56 p.m.

1 stop25h 51m

Montreal Pierre Elliott Trudeau Intl

Sun 27/4

7:10 a.m.-5:14 p.m.

1 stop10h 04m

C$ 643

BuffaloOttawa

BUF - YOW

BUFYOW

Buffalo

Thu 8/5

9:51 a.m.-12:22 a.m.

2 stops38h 31m

Ottawa

Wed 14/5

4:25 p.m.-9:01 a.m.

1 stop16h 36m

C$ 647

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Sat 10/5

6:00 a.m.-2:19 p.m.

1 stop8h 19m

Toronto Pearson Intl

Sat 17/5

12:45 p.m.-9:45 a.m.

1 stop21h 00m

C$ 677

BuffaloOttawa

BUF - YOW

BUFYOW

Buffalo

Fri 18/4

7:45 p.m.-4:43 p.m.

2 stops20h 58m

Ottawa

Thu 24/4

10:25 a.m.-9:40 a.m.

1 stop23h 15m

C$ 762

BuffaloToronto

BUF - YTZ

BUFYTZ

Buffalo

Mon 5/5

6:30 p.m.-2:04 p.m.

1 stop19h 34m

Toronto Island

Wed 7/5

5:55 p.m.-9:36 a.m.

1 stop15h 41m

C$ 790

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Fri 9/5

5:30 a.m.-4:55 p.m.

2 stops11h 25m

Montreal Pierre Elliott Trudeau Intl

Fri 16/5

10:44 a.m.-11:53 p.m.

2 stops13h 09m

C$ 1,126

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/3

Showing 1-10 of 23 results
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Best time to book a flight from Buffalo to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Buffalo 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 Buffalo to Ontario

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Region of Ontario, 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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated 28 March 2025.
Read reviews from past customers who have flown Delta, Porter Airlines and United Airlines from Buffalo to Ontario. 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
7,897 reviews
Check prices

Comfort

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Delta
8.0
Very good
7,897 reviews
Delta
8.0
Very good
7,897 reviews
Check prices

Comfort

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Porter Airlines
7.9
Good
276 reviews
Delta
8.0
Very good
7,897 reviews
Check prices

Comfort

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
United Airlines
7.4
Good
8,603 reviews
Delta
8.0
Very good
7,897 reviews
Check prices

Comfort

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,897 reviews
Check prices

Comfort

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
WestJet
7.2
Good
2,785 reviews
Delta
8.0
Very good
7,897 reviews
Check prices

Comfort

8.0

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Related info for your journey

Find useful and relevant information for your journey from Buffalo to Ontario. 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 from for flights from Buffalo to Ontario?

    For a flight from Buffalo to Ontario, you will be flying from Buffalo. Buffalo (BUF) is just 13.4 km from the centre of the city.

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

    One-way options have recently been found by users for as low as C$ 219 on Delta. Other airlines that offer cheap prices include American Airlines from C$ 234 and WestJet from C$ 273 one-way.

  • What are the most popular routes from Buffalo to Region of Ontario?

    Most travellers choose Buffalo - Montreal Pierre Elliott Trudeau Intl, Buffalo - Toronto Pearson Intl or Buffalo - Toronto Island when deciding on the best route from Buffalo to Region of Ontario.

  • Can I find deals for flights from Buffalo to Ontario that include hotel bookings?

    Yes. In addition to deals on Buffalo to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to Ontario.

  • Can I find deals for business class flights from Buffalo to Ontario?

    Yes. Cheapflights offers flight deals from Buffalo to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Buffalo to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Buffalo to Region of Ontario (average of C$ 167). Flying from Buffalo to Region of Ontario in July is currently the most expensive (average of C$ 258). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Buffalo to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Buffalo to Ontario?

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Cheapflights helps you find that perfect flight to Ontario from Buffalo by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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Certainly. Search results for flights to Ontario from Buffalo shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Buffalo to Ontario become cheaper?

Yes, Cheapflights offers price alerts on Buffalo to Ontario flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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