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$165+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — YYZ
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
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 August 1, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/1012:49 pm
BUF
-
YYZ
2 stops28h 20m
Multiple Airlines
Thu 9/179:50 am
YYZ
-
BUF
1 stop7h 55m
Multiple Airlines
Deal found 7/31$383
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/2611:36 am
BUF
-
YYZ
2 stops33h 14m
Multiple Airlines
Wed 9/27:45 am
YYZ
-
BUF
1 stop10h 24m
Multiple Airlines
Deal found 7/29$414
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Tue 9/226:51 pm
BUF
-
YYZ
1 stop21h 54m
Multiple Airlines
Mon 9/284:45 pm
YYZ
-
BUF
2 stops25h 04m
Multiple Airlines
Deal found 7/28$422
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/141:40 pm
BUF
-
YOW
2 stops26h 40m
Multiple Airlines
Mon 9/214:15 pm
YOW
-
BUF
1 stop25h 34m
Multiple Airlines
Deal found 7/31$452
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Sat 8/296:12 am
BUF
-
YTZ
1 stop12h 44m
United Airlines
Tue 9/13:15 pm
YTZ
-
BUF
1 stop8h 29m
United Airlines
Deal found 7/30$506
This oojo deal was found by Cheapflights users on 7/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:52 pm
BUF
-
YUL
1 stop27h 48m
WestJet
Mon 8/318:00 pm
YUL
-
BUF
2 stops15h 08m
WestJet
Deal found 7/27$508
This Delta deal was found by Cheapflights users on 7/29. 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 9/76:01 am
BUF
-
YUL
1 stop7h 38m
Delta
Tue 9/152:25 pm
YUL
-
BUF
1 stop8h 32m
Delta
Deal found 7/29$513
This oojo deal was found by Cheapflights users on 7/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/167:52 pm
BUF
-
YUL
1 stop27h 48m
WestJet
Thu 8/206:51 pm
YUL
-
BUF
1 stop29h 08m
WestJet
Deal found 7/28$515
This Delta deal was found by Cheapflights users on 7/29. 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.
Wed 8/267:00 am
BUF
-
YUL
2 stops16h 52m
Delta
Wed 9/27:44 pm
YUL
-
BUF
1 stop18h 03m
Delta
Deal found 7/29$520
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Thu 8/2710:30 am
BUF
-
YTZ
1 stop8h 26m
United Airlines
Wed 9/23:15 pm
YTZ
-
BUF
1 stop8h 29m
United Airlines
Deal found 7/30$521
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 8/262:53 pm
BUF
-
YUL
1 stop4h 52m
United Airlines
Wed 9/29:15 am
YUL
-
BUF
1 stop5h 03m
United Airlines
Deal found 7/29$523
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/76:27 am
BUF
-
YUL
1 stop5h 29m
WestJet
Mon 9/146:47 pm
YUL
-
BUF
1 stop16h 23m
WestJet
Deal found 7/29$524

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 August 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$383
(Kiwi.com)

One-way from

$165
(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 August 1, 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

Thu 9/10

12:49 pm-4:45 pm

1 stop27h 56m

Toronto Pearson Intl

Thu 9/17

9:50 am-5:45 pm

1 stop7h 55m

$387

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Mon 9/7

6:01 am-1:39 pm

1 stop7h 38m

Montreal Pierre Elliott Trudeau Intl

Tue 9/15

2:25 pm-10:57 pm

1 stop8h 32m

$513

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Fri 8/28

7:52 pm-11:40 pm

1 stop27h 48m

Montreal Pierre Elliott Trudeau Intl

Mon 8/31

7:00 am-11:08 am

1 stop28h 08m

$515

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Mon 8/24

12:16 pm-11:52 pm

1 stop11h 36m

Montreal Pierre Elliott Trudeau Intl

Mon 8/31

7:00 am-11:59 pm

1 stop16h 59m

$515

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Wed 8/26

7:00 am-11:52 pm

2 stops16h 52m

Montreal Pierre Elliott Trudeau Intl

Wed 9/2

7:44 pm-1:47 pm

1 stop18h 03m

$520

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Mon 9/7

6:27 am-11:56 am

1 stop5h 29m

Montreal Pierre Elliott Trudeau Intl

Mon 9/14

6:47 pm-11:10 am

1 stop16h 23m

$524

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Wed 9/9

10:33 am-11:54 pm

1 stop13h 21m

Toronto Pearson Intl

Sat 9/12

9:44 am-7:04 pm

1 stop9h 20m

$526
Quickest round-trip

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Tue 10/20

5:18 pm-9:30 pm

1 stop4h 12m

Montreal Pierre Elliott Trudeau Intl

Thu 10/29

7:40 am-12:46 pm

1 stop5h 06m

$537

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Tue 9/1

10:30 am-5:30 pm

1 stop7h 00m

Montreal Pierre Elliott Trudeau Intl

Thu 9/3

9:45 am-4:56 pm

1 stop7h 11m

$537

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Thu 9/17

10:33 am-2:40 pm

1 stop4h 07m

Montreal Pierre Elliott Trudeau Intl

Fri 9/18

9:45 am-4:54 pm

1 stop7h 09m

$543

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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 38m. Fly via Delta, WestJet, or United Airlines to get the fastest option. The distance between Buffalo and Region of Ontario is about 302 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 - Toronto Island or Buffalo - Montreal Pierre Elliott Trudeau 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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