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$214+ 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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — YYZ
Jul 10 — Jul 171
Fri 7/10
Fri 7/17
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 June 10, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/9. 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 8/188:57 pm
BUF
-
YYZ
1 stop23h 08m
Multiple Airlines
Mon 8/247:45 am
YYZ
-
BUF
1 stop11h 22m
Multiple Airlines
Deal found 6/9$485
This Delta deal was found by Cheapflights users on 6/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:20 am
BUF
-
YUL
1 stop8h 34m
Delta
Wed 8/122:29 pm
YUL
-
BUF
1 stop9h 00m
Delta
Deal found 6/9$503
This Delta deal was found by Cheapflights users on 6/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:10 am
BUF
-
YUL
1 stop7h 40m
Delta
Fri 7/102:29 pm
YUL
-
BUF
1 stop9h 09m
Delta
Deal found 6/9$504
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:01 am
BUF
-
YUL
1 stop12h 53m
Delta
Sat 8/2212:47 pm
YUL
-
BUF
2 stops11h 53m
Delta
Deal found 6/7$526
This American Airlines deal was found by Cheapflights users on 6/9. 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.
Sat 8/86:00 am
BUF
-
YUL
1 stop6h 27m
American Airlines
Wed 8/1210:31 am
YUL
-
BUF
1 stop11h 00m
American Airlines
Deal found 6/9$528
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/172:48 pm
BUF
-
YYZ
2 stops21h 12m
Multiple Airlines
Tue 7/289:50 am
YYZ
-
BUF
1 stop9h 16m
Multiple Airlines
Deal found 6/5$529
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:10 pm
BUF
-
YUL
1 stop14h 29m
Delta
Sat 8/2212:47 pm
YUL
-
BUF
2 stops11h 53m
Delta
Deal found 6/7$535
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:01 am
BUF
-
YUL
1 stop7h 38m
Delta
Sat 8/299:30 am
YUL
-
BUF
1 stop12h 02m
Delta
Deal found 6/7$537
This American Airlines deal was found by Cheapflights users on 6/7. 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.
Wed 8/266:00 am
BUF
-
YUL
1 stop3h 46m
American Airlines
Wed 8/261:07 pm
YUL
-
BUF
1 stop3h 47m
American Airlines
Deal found 6/7$538
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:01 am
BUF
-
YUL
1 stop12h 53m
Delta
Tue 8/259:30 am
YUL
-
BUF
1 stop13h 59m
Delta
Deal found 6/7$544
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/83:00 pm
BUF
-
YUL
1 stop4h 45m
United Airlines
Wed 7/1511:23 am
YUL
-
BUF
1 stop6h 42m
United Airlines
Deal found 6/9$547
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:10 pm
BUF
-
YUL
1 stop14h 29m
Delta
Thu 8/207:44 pm
YUL
-
BUF
1 stop13h 29m
Delta
Deal found 6/7$553

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 June 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$485
(Kiwi.com)

One-way from

$214
(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 June 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 - YYZ

BUFYYZ

Buffalo

Tue 8/18

8:57 pm-8:05 pm

1 stop23h 08m

Toronto Pearson Intl

Mon 8/24

7:45 am-7:07 pm

1 stop11h 22m

$485

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Mon 8/10

10:20 am-6:54 pm

1 stop8h 34m

Montreal Pierre Elliott Trudeau Intl

Wed 8/12

2:29 pm-11:29 pm

1 stop9h 00m

$503

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Sat 7/4

6:10 am-1:50 pm

1 stop7h 40m

Montreal Pierre Elliott Trudeau Intl

Fri 7/10

2:29 pm-11:38 pm

1 stop9h 09m

$504

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

Fri 7/17

2:48 pm-12:00 pm

2 stops21h 12m

Toronto Pearson Intl

Tue 7/28

9:50 am-7:06 pm

1 stop9h 16m

$529

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Tue 8/25

6:01 am-1:39 pm

1 stop7h 38m

Montreal Pierre Elliott Trudeau Intl

Wed 8/26

2:29 pm-11:29 pm

1 stop9h 00m

$537

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Mon 8/17

6:10 pm-8:39 am

1 stop14h 29m

Montreal Pierre Elliott Trudeau Intl

Thu 8/20

7:44 pm-9:13 am

1 stop13h 29m

$553

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Mon 8/17

6:10 pm-8:39 am

1 stop14h 29m

Montreal Pierre Elliott Trudeau Intl

Wed 8/19

9:30 am-1:47 pm

1 stop4h 17m

$560
Quickest round-trip

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Sat 7/25

10:34 am-4:10 pm

1 stop5h 36m

Montreal Pierre Elliott Trudeau Intl

Sat 8/1

6:00 am-9:57 am

1 stop3h 57m

$561

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Wed 7/1

6:00 am-4:10 pm

1 stop10h 10m

Montreal Pierre Elliott Trudeau Intl

Wed 7/8

3:25 pm-10:31 pm

1 stop7h 06m

$561

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Tue 7/7

1:54 pm-9:26 pm

1 stop7h 32m

Montreal Pierre Elliott Trudeau Intl

Tue 7/14

4:30 pm-10:31 pm

1 stop6h 01m

$561

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 59 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 8h 34m. Fly via Delta, United Airlines, or Air Canada 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 - Toronto Pearson 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.

See more FAQs

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