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$192+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — YYZ
Sep 9 — Sep 161
Wed 9/9
Wed 9/16
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 10, 2026.

This Kiwi.com deal was found by Cheapflights users on 8/9. 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 9/83:53 pm -
1 stop7h 34m
Tue 9/157:00 am -
1 stop10h 52m
Deal found 8/9$440
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 9/89:29 pm -
1 stop19h 11m
Tue 9/155:50 pm -
2 stops19h 05m
Deal found 8/9$441
This Kiwi.com deal was found by Cheapflights users on 8/8. 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.
Sat 10/101:13 pm -
2 stops24h 55m
Tue 10/137:00 am -
1 stop10h 49m
Deal found 8/8$460
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 9/213:58 pm -
1 stop7h 52m
Mon 9/283:15 pm -
2 stops26h 34m
Deal found 8/7$475
This FlightHub deal was found by Cheapflights users on 8/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2612:16 pm -
1 stop11h 36m
Fri 8/287:00 am -
1 stop28h 08m
Deal found 8/7$494
This FlightHub deal was found by Cheapflights users on 8/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:02 pm -
2 stops28h 43m
Fri 8/286:51 pm -
1 stop16h 17m
Deal found 8/7$498
This American Airlines deal was found by Cheapflights users on 8/9. 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.
Tue 9/86:14 am -
1 stop3h 32m
Tue 9/154:15 pm -
1 stop5h 03m
Deal found 8/9$501
This American Airlines deal was found by Cheapflights users on 8/7. 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 9/196:00 am -
2 stops9h 29m
Sat 9/267:50 am -
1 stop4h 52m
Deal found 8/7$510
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 -
2 stops25h 19m
Sun 9/137:00 am -
1 stop10h 52m
Deal found 8/9$512
This United Airlines deal was found by Cheapflights users on 8/5. 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 9/56:12 am -
1 stop12h 59m
Fri 9/113:15 pm -
1 stop8h 29m
Deal found 8/5$552
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 8/2511:36 am -
2 stops24h 49m
Sat 8/297:00 am -
1 stop26h 23m
Deal found 8/8$568
This American Airlines deal was found by Cheapflights users on 8/7. 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 9/54:54 pm -
1 stop19h 05m
Fri 9/112:18 pm -
1 stop9h 36m
Deal found 8/7$593

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 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$440
(Kiwi.com)

One-way from

$192
(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 10, 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 Buffalo - YYZ Toronto Pearson Intl

BUFYYZ

Buffalo

Tue 9/8

9:29 pm-4:40 pm

1 stop19h 11m

Toronto Pearson Intl

Tue 9/15

9:50 am-5:49 pm

1 stop7h 59m

$464

BuffaloMontreal

BUF Buffalo - YUL Montreal Pierre Elliott Trudeau Intl

BUFYUL

Buffalo

Thu 8/27

12:02 pm-4:45 pm

2 stops28h 43m

Montreal Pierre Elliott Trudeau Intl

Fri 8/28

6:51 pm-11:08 am

1 stop16h 17m

$498
Quickest round-trip

BuffaloMontreal

BUF Buffalo - YUL Montreal Pierre Elliott Trudeau Intl

BUFYUL

Buffalo

Wed 9/23

6:00 am-9:49 am

1 stop3h 49m

Montreal Pierre Elliott Trudeau Intl

Wed 9/30

1:06 pm-4:53 pm

1 stop3h 47m

$501

BuffaloMontreal

BUF Buffalo - YUL Montreal Pierre Elliott Trudeau Intl

BUFYUL

Buffalo

Sat 9/19

5:18 pm-9:42 pm

1 stop4h 24m

Montreal Pierre Elliott Trudeau Intl

Sat 9/26

7:50 am-12:42 pm

1 stop4h 52m

$501

BuffaloMontreal

BUF Buffalo - YUL Montreal Pierre Elliott Trudeau Intl

BUFYUL

Buffalo

Sat 10/10

10:43 am-3:27 pm

1 stop4h 44m

Montreal Pierre Elliott Trudeau Intl

Tue 10/13

1:06 pm-7:09 pm

1 stop6h 03m

$501

BuffaloMontreal

BUF Buffalo - YUL Montreal Pierre Elliott Trudeau Intl

BUFYUL

Buffalo

Wed 8/26

7:52 pm-4:45 pm

2 stops20h 53m

Montreal Pierre Elliott Trudeau Intl

Fri 8/28

7:00 am-11:08 am

1 stop28h 08m

$503

BuffaloMontreal

BUF Buffalo - YUL Montreal Pierre Elliott Trudeau Intl

BUFYUL

Buffalo

Fri 9/4

7:52 pm-11:40 pm

1 stop27h 48m

Montreal Pierre Elliott Trudeau Intl

Fri 9/11

2:46 pm-11:52 pm

1 stop9h 06m

$519

BuffaloMontreal

BUF Buffalo - YUL Montreal Pierre Elliott Trudeau Intl

BUFYUL

Buffalo

Mon 8/31

10:20 am-6:54 pm

1 stop8h 34m

Montreal Pierre Elliott Trudeau Intl

Wed 9/9

9:30 am-5:36 pm

1 stop8h 06m

$524

BuffaloToronto

BUF Buffalo - YTZ Toronto Island

BUFYTZ

Buffalo

Sat 9/5

6:12 am-7:11 pm

1 stop12h 59m

Toronto Island

Fri 9/11

3:15 pm-11:44 pm

1 stop8h 29m

$552

BuffaloMontreal

BUF Buffalo - YUL Montreal Pierre Elliott Trudeau Intl

BUFYUL

Buffalo

Thu 8/27

6:00 am-3:29 pm

2 stops9h 29m

Montreal Pierre Elliott Trudeau Intl

Fri 8/28

7:55 am-3:47 pm

2 stops7h 52m

$555

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/5

Showing 1-10 of 57 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 34m. Fly via WestJet, United Airlines, or American 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 - Montreal Pierre Elliott Trudeau Intl, Buffalo - Ottawa 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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