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$181+ Cheap flights from Ontario to Buffalo (BUF)

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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BUF
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Ontario to Buffalo

Keep the following information in mind while searching for Ontario to Buffalo flight deals. Data was last updated July 31, 2025.

Round-trip from

$364
(Delta)

One-way from

$217
(Delta)
From Ontario to Buffalo
Search Deals
One-way flight from Ontario to Buffalo
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Find flight deals from Ontario to Buffalo

Cheapest flights from Ontario to Buffalo
Explore the most affordable flight options available from Ontario to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/276:04 amYYZ - BUF
1 stop9h 14mDelta
Wed 9/310:41 amBUF - YYZ
1 stop10h 02mDelta
Deal found 7/30$364
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.
Fri 9/127:15 amYYZ - BUF
1 stop10h 59mMultiple Airlines
Fri 9/196:59 pmBUF - YYZ
1 stop28h 42mMultiple Airlines
Deal found 7/29$415
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/117:20 amYYZ - BUF
1 stop10h 35mAmerican Airlines
Mon 9/157:30 amBUF - YYZ
1 stop15h 55mAmerican Airlines
Deal found 7/29$447
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.
Tue 8/2612:15 pmYYZ - BUF
1 stop11h 44mUnited Airlines
Tue 9/28:00 pmBUF - YYZ
1 stop14h 04mUnited Airlines
Deal found 7/29$491
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/258:15 amYYZ - BUF
1 stop5h 07mAir Canada
Mon 8/255:54 pmBUF - YYZ
1 stop5h 16mAir Canada
Deal found 7/30$939

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Buffalo 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 July 31, 2025.
Use the filters below to find and compare flights from Ontario to Buffalo that are best for you.

Fly from

Ontario

Fly to

Buffalo

Route

Depart

Return

Price

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Wed 8/27

12:14 pm-11:24 pm

2 stops11h 10m

Buffalo

Wed 9/3

10:41 am-8:43 pm

1 stop10h 02m

$364

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Fri 9/12

7:15 am-6:14 pm

1 stop10h 59m

Buffalo

Fri 9/19

6:59 pm-11:41 pm

1 stop28h 42m

$415

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Thu 9/11

7:20 am-5:55 pm

1 stop10h 35m

Buffalo

Mon 9/15

7:30 am-11:25 pm

1 stop15h 55m

$447

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Tue 8/26

12:15 pm-11:59 pm

1 stop11h 44m

Buffalo

Tue 9/2

8:00 pm-10:04 am

1 stop14h 04m

$491

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Mon 8/25

8:15 am-1:22 pm

1 stop5h 07m

Buffalo

Mon 8/25

5:54 pm-11:10 pm

1 stop5h 16m

$939

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Thu 9/11

11:05 pm-6:03 pm

2 stops18h 58m

Buffalo

Mon 9/15

12:06 pm-8:10 am

2 stops20h 04m

$1,205

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Thu 9/18

7:15 am-5:27 pm

1 stop10h 12m

$181

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Fri 9/19

6:13 pm-10:27 am

2 stops16h 14m

$217

TorontoBuffalo

YYZ - BUF

YYZBUF

Toronto Pearson Intl

Tue 8/26

9:00 pm-9:53 am

1 stop12h 53m

$282

TorontoBuffalo

YTZ - BUF

YTZBUF

Toronto Island

Fri 8/8

12:00 pm-8:52 am

2 stops20h 52m

$389

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 12 results
1
2

Best time to book a flight from Ontario to Buffalo

Have a flexible travel schedule? Discover the best time to fly to Buffalo from Ontario 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 Ontario to Buffalo

What is the cheapest month to book a flight from Region of Ontario to Buffalo?

Currently, January is the cheapest month in which you can book a flight from Region of Ontario to Buffalo (average of $256). Flying from Region of Ontario to Buffalo in December is currently the most expensive (average of $337). 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.

What is the cheapest time of day to fly from ON to BUF?

Find hourly flight availability from Ontario to Buffalo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

When flying from Region of Ontario to Buffalo, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Buffalo

Get insights into the airlines that provide service to Buffalo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buffalo. Reviews last updated July 31, 2025.
Read through reviews of airlines operating flights from Ontario to Buffalo, such as Delta, United Airlines, and WestJet. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
WestJet
7.2
Good
2,978 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
Air Canada
7.1
Good
9,851 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!

Related info for your journey

Find useful and relevant information for your journey from Ontario to Buffalo. 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 into for flights to Buffalo from Ontario?

    If you book a flight to Buffalo from Ontario, you will be flying to Buffalo, which is the city’s only airport. Buffalo (BUF) is located 8.3 mi from the center of Buffalo.

  • Can I find deals for flights from Ontario to Buffalo that include hotel bookings?

    Yes. In addition to deals on Ontario to Buffalo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Buffalo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Buffalo.

  • Can I find deals for business class flights from Ontario to Buffalo?

    Yes. Cheapflights offers flight deals from Ontario to Buffalo 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 Region of Ontario to Buffalo?

    Currently, January is the cheapest month in which you can book a flight from Region of Ontario to Buffalo (average of $256). Flying from Region of Ontario to Buffalo in December is currently the most expensive (average of $337). 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

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Orchard Park
Batavia
Williamsville
Eden
Amherst
West Seneca

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