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$117+ 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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — YYZ
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
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 September 15, 2025.

Round-trip from

$309
(Kiwi.com)

One-way from

$117
(Kiwi.com)
From Buffalo to Ontario
Search Deals
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 September 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/13. 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 10/167:14 pmBUF - YYZ
1 stop26h 07mMultiple Airlines
Sun 10/267:10 amYYZ - BUF
2 stops28h 09mMultiple Airlines
Deal found 9/13$309
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Fri 10/2412:15 pmBUF - YYZ
2 stops26h 10mMultiple Airlines
Sat 11/17:10 amYYZ - BUF
1 stop11h 07mMultiple Airlines
Deal found 9/14$384
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Fri 10/2412:15 pmBUF - YYZ
2 stops10h 25mMultiple Airlines
Mon 10/2712:50 pmYYZ - BUF
1 stop7h 28mMultiple Airlines
Deal found 9/14$412
This Delta deal was found by Cheapflights users on 9/13. 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.
Mon 10/276:03 amBUF - YUL
1 stop26h 34mDelta
Tue 11/49:28 amYUL - BUF
1 stop7h 34mDelta
Deal found 9/13$415
This Delta deal was found by Cheapflights users on 9/14. 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.
Sun 10/126:03 amBUF - YYZ
1 stop17h 36mDelta
Thu 10/236:04 amYYZ - BUF
1 stop7h 43mDelta
Deal found 9/14$441
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/2312:15 pmBUF - YYZ
2 stops10h 25mMultiple Airlines
Sun 10/268:00 pmYYZ - BUF
1 stop24h 18mMultiple Airlines
Deal found 9/15$447
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Mon 10/276:23 pmBUF - YUL
1 stop15h 27mAmerican Airlines
Tue 11/47:30 amYUL - BUF
2 stops16h 14mAmerican Airlines
Deal found 9/13$452
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Fri 10/36:59 pmBUF - YUL
1 stop19h 21mMultiple Airlines
Mon 10/66:45 amYUL - BUF
2 stops11h 29mMultiple Airlines
Deal found 9/13$455
This lol.travel deal was found by Cheapflights users on 9/14. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/146:30 amBUF - YYZ
1 stop7h 17mUnited Airlines
Tue 10/212:15 pmYYZ - BUF
1 stop8h 27mUnited Airlines
Deal found 9/14$464
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Mon 12/111:57 amBUF - YYZ
1 stop12h 28mMultiple Airlines
Thu 12/45:15 pmYYZ - BUF
1 stop22h 56mMultiple Airlines
Deal found 9/14$472
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 9/186:22 pmBUF - YYZ
2 stops26h 59mMultiple Airlines
Mon 9/229:50 amYYZ - BUF
1 stop8h 24mMultiple Airlines
Deal found 9/13$482
This Delta deal was found by Cheapflights users on 9/14. 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.
Sun 10/126:03 amBUF - YYZ
1 stop10h 06mDelta
Fri 10/242:30 pmYYZ - BUF
1 stop8h 27mDelta
Deal found 9/14$496

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 September 15, 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

Thu 10/16

7:14 pm-9:21 pm

1 stop26h 07m

Toronto Pearson Intl

Sun 10/26

7:10 am-11:19 am

2 stops28h 09m

$309

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Fri 10/24

12:15 pm-2:25 pm

2 stops26h 10m

Toronto Pearson Intl

Sat 11/1

7:10 am-6:17 pm

1 stop11h 07m

$384

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Fri 10/24

12:15 pm-10:40 pm

2 stops10h 25m

Toronto Pearson Intl

Mon 10/27

12:50 pm-8:18 pm

1 stop7h 28m

$412

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Mon 10/27

5:45 pm-8:37 am

1 stop14h 52m

Montreal Pierre Elliott Trudeau Intl

Tue 11/4

6:00 am-11:43 pm

2 stops17h 43m

$415

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Sun 10/12

6:03 am-11:39 pm

1 stop17h 36m

Toronto Pearson Intl

Thu 10/23

6:04 am-1:47 pm

1 stop7h 43m

$441

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Thu 10/23

12:15 pm-10:40 pm

2 stops10h 25m

Toronto Pearson Intl

Sun 10/26

8:00 pm-8:18 pm

1 stop24h 18m

$447

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Fri 10/3

6:59 pm-2:20 pm

1 stop19h 21m

Montreal Pierre Elliott Trudeau Intl

Mon 10/6

6:45 am-6:14 pm

2 stops11h 29m

$455

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Tue 10/14

6:30 am-1:47 pm

1 stop7h 17m

Toronto Pearson Intl

Tue 10/21

2:15 pm-10:42 pm

1 stop8h 27m

$464

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Tue 3/3

6:16 am-1:43 pm

1 stop7h 27m

Toronto Pearson Intl

Wed 3/4

2:10 pm-10:58 pm

1 stop8h 48m

$491

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Thu 10/30

11:00 am-9:50 am

1 stop22h 50m

Montreal Pierre Elliott Trudeau Intl

Thu 11/6

7:30 am-11:44 pm

2 stops16h 14m

$536

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 45 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
No data available for this route at this time. Please check back soon.

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.

  • How long is the flight from Buffalo to Region of Ontario?

    There are many flights that can get you from Buffalo to Region of Ontario in 12h 25m. Fly via Delta, American Airlines, or United Airlines to get the fastest option. The distance between Buffalo and Region of Ontario is about 633 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 - Ottawa 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 August is currently the most expensive (average of $348). 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

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