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$137+ 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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — YYZ
May 28 — Jun 41
Thu 5/28
Thu 6/4
1 adult, Economy
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Cheap 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 28, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
Tue 6/99:02 pm
BUF
-
YYZ
2 stops24h 53m
Multiple Airlines
Tue 6/169:50 am
YYZ
-
BUF
1 stop9h 22m
Multiple Airlines
Deal found 4/26$387
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
Wed 6/177:57 pm
BUF
-
YYZ
1 stop20h 48m
Multiple Airlines
Mon 6/221:30 pm
YYZ
-
BUF
2 stops21h 25m
Multiple Airlines
Deal found 4/25$418
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
Tue 5/267:52 pm
BUF
-
YYZ
2 stops26h 03m
Multiple Airlines
Sun 5/319:50 am
YYZ
-
BUF
1 stop9h 09m
Multiple Airlines
Deal found 4/26$429
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 5/257:52 pm
BUF
-
YYZ
1 stop20h 53m
Multiple Airlines
Mon 6/11:30 pm
YYZ
-
BUF
2 stops21h 11m
Multiple Airlines
Deal found 4/27$432
This Delta deal was found by Cheapflights users on 4/24. 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 5/96:04 am
BUF
-
YYZ
1 stop7h 36m
Delta
Mon 5/187:55 am
YYZ
-
BUF
1 stop9h 06m
Delta
Deal found 4/24$434
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 6/122:50 pm
BUF
-
YOW
2 stops24h 10m
Multiple Airlines
Fri 6/197:00 am
YOW
-
BUF
1 stop12h 12m
Multiple Airlines
Deal found 4/28$437
This Delta deal was found by Cheapflights users on 4/25. 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 5/236:04 am
BUF
-
YUL
1 stop26h 35m
Delta
Sat 5/309:30 am
YUL
-
BUF
1 stop23h 48m
Delta
Deal found 4/25$438
This Delta deal was found by Cheapflights users on 4/27. 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 5/262:47 pm
BUF
-
YUL
1 stop17h 52m
Delta
Tue 6/29:30 am
YUL
-
BUF
1 stop7h 31m
Delta
Deal found 4/27$439
This American Airlines deal was found by Cheapflights users on 4/27. 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.
Wed 6/36:21 pm
BUF
-
YUL
1 stop15h 29m
American Airlines
Sat 6/610:30 am
YUL
-
BUF
1 stop8h 17m
American Airlines
Deal found 4/27$442
This Delta deal was found by Cheapflights users on 4/24. 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 5/117:55 pm
BUF
-
YYZ
2 stops19h 19m
Delta
Mon 5/187:55 am
YYZ
-
BUF
1 stop9h 06m
Delta
Deal found 4/24$444
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 6/52:49 pm
BUF
-
YOW
2 stops24h 11m
Multiple Airlines
Fri 6/127:00 am
YOW
-
BUF
1 stop12h 12m
Multiple Airlines
Deal found 4/24$448
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 5/288:49 pm
BUF
-
YYZ
2 stops20h 20m
Multiple Airlines
Thu 6/47:45 am
YYZ
-
BUF
1 stop11h 14m
Multiple Airlines
Deal found 4/28$451

Find 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 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$387
(Kiwi.com)

One-way from

$137
(Kiwi.com)
Provider with most accurate pricing for Buffalo-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buffalo-Toronto (YTO) flights.
Search Deals
From Buffalo to Ontario
Search Deals
One-way flight from Buffalo to Ontario
Search Deals

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 28, 2026.
Use the filters below to find and compare flights from Buffalo to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Sat 5/9

6:04 am-1:40 pm

1 stop7h 36m

Toronto Pearson Intl

Sun 5/17

2:30 pm-9:03 am

1 stop18h 33m

$434

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Sat 5/9

6:04 am-1:40 pm

1 stop7h 36m

Toronto Pearson Intl

Mon 5/18

7:55 am-5:01 pm

1 stop9h 06m

$434

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Fri 5/29

9:45 am-6:53 pm

1 stop9h 08m

Montreal Pierre Elliott Trudeau Intl

Fri 6/5

2:29 pm-11:32 pm

1 stop9h 03m

$439

BuffaloOttawa

BUF - YOW

BUFYOW

Buffalo

Fri 6/5

2:49 pm-3:00 pm

2 stops24h 11m

Ottawa

Fri 6/12

7:00 am-7:12 pm

1 stop12h 12m

$448

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Thu 5/28

8:49 pm-5:09 pm

2 stops20h 20m

Toronto Pearson Intl

Thu 6/4

7:45 am-6:59 pm

1 stop11h 14m

$451

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Thu 5/14

6:04 am-11:41 pm

1 stop17h 37m

Toronto Pearson Intl

Wed 5/20

12:05 pm-12:19 am

1 stop12h 14m

$459

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Tue 5/26

10:32 am-11:57 pm

2 stops13h 25m

Montreal Pierre Elliott Trudeau Intl

Tue 6/2

9:30 am-5:01 pm

1 stop7h 31m

$478

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Sat 5/23

7:52 pm-8:05 pm

1 stop24h 13m

Toronto Pearson Intl

Sat 5/30

7:45 am-6:59 pm

1 stop11h 14m

$479

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Fri 5/29

6:21 pm-9:50 am

1 stop15h 29m

Montreal Pierre Elliott Trudeau Intl

Fri 6/5

10:30 am-9:50 pm

2 stops11h 20m

$488

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Wed 6/17

7:57 pm-4:45 pm

1 stop20h 48m

Toronto Pearson Intl

Mon 6/22

7:45 am-7:12 pm

1 stop11h 27m

$492

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

Showing 1-10 of 60 resultsSorted by cheapest first
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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 7h 36m. Fly via Delta, American Airlines, or United Airlines to get the fastest option. The distance between Buffalo and Region of Ontario is about 68 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 - Montreal Pierre Elliott Trudeau Intl, Buffalo - Toronto Island or Buffalo - Toronto Pearson Intl 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.

See more FAQs

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