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$153+ Cheap flights from Buffalo (BUF) to Ontario

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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — YYZ
Apr 9 — Apr 161
Wed 4/9
Wed 4/16
1 adult, Economy
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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 April 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$360
(Delta)

One-way from

$153
(Delta)
Provider with most accurate pricing for Buffalo-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buffalo-Toronto (YTO) flights.
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From Buffalo to Ontario
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One-way flight from Buffalo to Ontario
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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 April 4, 2025.

This Delta deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/202:59 pmBUF - YYZ
1 stop7h 55mDelta
Tue 5/276:03 amYYZ - BUF
1 stop9h 12mDelta
Deal found 4/3$360
This Delta deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/36:15 amBUF - YUL
1 stop5h 43mDelta
Mon 5/56:00 amYUL - BUF
1 stop8h 18mDelta
Deal found 4/3$364
This American Airlines deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/312:54 pmBUF - YUL
2 stops20h 56mAmerican Airlines
Mon 5/57:47 amYUL - BUF
1 stop15h 04mAmerican Airlines
Deal found 4/3$373
This Kiwi.com deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/19:51 amBUF - YYZ
1 stop12h 53mMultiple Airlines
Thu 5/84:00 pmYYZ - BUF
1 stop26h 28mMultiple Airlines
Deal found 4/2$402
This Trip.com deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1212:05 pmBUF - YUL
1 stop11h 49mWestJet
Thu 5/156:00 amYUL - BUF
1 stop11h 09mWestJet
Deal found 4/4$423
This United deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/256:00 amBUF - YUL
1 stop16h 06mMultiple Airlines
Sun 4/271:15 pmYUL - BUF
1 stop10h 29mMultiple Airlines
Deal found 4/3$453
This United Airlines deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/127:55 pmBUF - YUL
2 stops14h 21mUnited Airlines
Thu 5/1511:15 amYUL - BUF
1 stop12h 21mUnited Airlines
Deal found 4/4$479
This United deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/256:00 amBUF - YTZ
2 stops14h 37mMultiple Airlines
Fri 5/910:20 amYTZ - BUF
2 stops13h 16mMultiple Airlines
Deal found 4/2$490
This United deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/166:00 amBUF - YOW
1 stop16h 05mMultiple Airlines
Thu 4/246:05 amYOW - BUF
1 stop17h 39mMultiple Airlines
Deal found 4/2$533
This United Airlines deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/27:55 pmBUF - YYZ
1 stop14h 09mUnited Airlines
Fri 5/92:30 pmYYZ - BUF
1 stop9h 06mUnited Airlines
Deal found 4/3$552
This Air Canada deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/51:55 pmBUF - YUL
2 stops9h 56mAir Canada
Mon 4/79:15 amYUL - BUF
1 stop7h 40mAir Canada
Deal found 4/3$743
This Expedia deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/25:57 pmBUF - YYZ
1 stop5h 10mAir Canada
Fri 5/96:15 amYYZ - BUF
2 stops15h 07mAir Canada
Deal found 4/4$764

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 2,558,603 searches. Data last updated April 4, 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

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Tue 5/20

2:59 pm-10:54 pm

1 stop7h 55m

Toronto Pearson Intl

Tue 5/27

6:03 am-3:15 pm

1 stop9h 12m

$360

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Sat 5/3

6:15 am-11:58 am

1 stop5h 43m

Montreal Pierre Elliott Trudeau Intl

Mon 5/5

6:00 am-2:18 pm

1 stop8h 18m

$364

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Sat 5/3

12:54 pm-9:50 am

2 stops20h 56m

Montreal Pierre Elliott Trudeau Intl

Mon 5/5

7:47 am-10:51 pm

1 stop15h 04m

$373

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Thu 5/1

9:51 am-10:44 pm

1 stop12h 53m

Toronto Pearson Intl

Thu 5/8

4:00 pm-6:28 pm

1 stop26h 28m

$402

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Mon 5/12

12:05 pm-11:54 pm

1 stop11h 49m

Montreal Pierre Elliott Trudeau Intl

Thu 5/15

6:00 am-5:09 pm

1 stop11h 09m

$423

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Fri 4/25

6:00 am-10:06 pm

1 stop16h 06m

Montreal Pierre Elliott Trudeau Intl

Sun 4/27

1:15 pm-11:44 pm

1 stop10h 29m

$453

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Mon 5/12

7:55 pm-10:16 am

2 stops14h 21m

Montreal Pierre Elliott Trudeau Intl

Thu 5/15

11:15 am-11:36 pm

1 stop12h 21m

$479

BuffaloToronto

BUF - YTZ

BUFYTZ

Buffalo

Fri 4/25

6:00 am-8:37 pm

2 stops14h 37m

Toronto Island

Fri 5/9

10:20 am-11:36 pm

2 stops13h 16m

$490

BuffaloOttawa

BUF - YOW

BUFYOW

Buffalo

Wed 4/16

6:00 am-10:05 pm

1 stop16h 05m

Ottawa

Thu 4/24

6:05 am-11:44 pm

1 stop17h 39m

$533

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Fri 5/2

7:55 pm-10:04 am

1 stop14h 09m

Toronto Pearson Intl

Fri 5/9

2:30 pm-11:36 pm

1 stop9h 06m

$552

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/4

Showing 1-10 of 27 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 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

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 April 4, 2025.
Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from Buffalo to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,900 reviews

Boarding

8.2

Food

7.3

Comfort

8.0

Overall

8.0

Entertainment

7.9

Crew

8.5

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
7,900 reviews
Delta
8.0
Very good
7,900 reviews

Boarding

8.2

Food

7.3

Comfort

8.0

Overall

8.0

Entertainment

7.9

Crew

8.5

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
8,618 reviews
Delta
8.0
Very good
7,900 reviews

Boarding

8.2

Food

7.3

Comfort

8.0

Overall

8.0

Entertainment

7.9

Crew

8.5

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
7,900 reviews

Boarding

8.2

Food

7.3

Comfort

8.0

Overall

8.0

Entertainment

7.9

Crew

8.5

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
2,795 reviews
Delta
8.0
Very good
7,900 reviews

Boarding

8.2

Food

7.3

Comfort

8.0

Overall

8.0

Entertainment

7.9

Crew

8.5

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.
Air Canada
7.0
Good
9,035 reviews
Delta
8.0
Very good
7,900 reviews

Boarding

8.2

Food

7.3

Comfort

8.0

Overall

8.0

Entertainment

7.9

Crew

8.5

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 8.3 mi from the center of the city.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $153. Users have also found prices from $159 and $165 on American Airlines and Air Canada, respectively.

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

    Most travelers choose Buffalo - Toronto Pearson Intl, Buffalo - Montreal Pierre Elliott Trudeau 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 $243). Flying from Buffalo to Region of Ontario in July is currently the most expensive (average of $359). 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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