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$160+ 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — YYZ
mar. 9 — mar. 161
dom. 3/9
dom. 3/16
1 adult, Economy
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Cheap flight deals from Buffalo to Ontario

Keep the following information in mind while searching for Buffalo to Ontario flight deals. Data was last updated marzo 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$319
(American Airlines)

One-way from

$160
(Delta)
Provider with most accurate pricing for Buffalo-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buffalo-Toronto (YTO) flights.
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From Buffalo to Ontario
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One-way flight from Buffalo to Ontario
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Find 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 marzo 4, 2025.

This American Airlines deal was found by Cheapflights users on 3/4. 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.
mar. 4/294:06 pmBUF - YUL
1 stop17h 44mAmerican Airlines
mié. 4/3012:55 pmYUL - BUF
2 stops9h 50mAmerican Airlines
Deal found 3/4$319
This United Airlines deal was found by Cheapflights users on 3/4. 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.
dom. 3/306:00 amBUF - YUL
1 stop5h 53mUnited Airlines
dom. 4/69:15 amYUL - BUF
1 stop11h 56mUnited Airlines
Deal found 3/4$352
This Delta deal was found by Cheapflights users on 3/4. 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.
dom. 3/306:00 amBUF - YUL
1 stop4h 27mDelta
dom. 4/66:00 amYUL - BUF
1 stop3h 43mDelta
Deal found 3/4$353
This Delta deal was found by Cheapflights users on 3/4. 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.
mar. 4/110:30 amBUF - YYZ
1 stop7h 29mDelta
mar. 4/810:00 amYYZ - BUF
1 stop12h 38mDelta
Deal found 3/4$374
This American Airlines deal was found by Cheapflights users on 3/3. 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.
lun. 4/712:53 pmBUF - YYZ
1 stop23h 02mAmerican Airlines
mar. 4/155:25 pmYYZ - BUF
1 stop18h 58mAmerican Airlines
Deal found 3/3$384
This Sun Country Air deal was found by Cheapflights users on 3/3. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/711:40 amBUF - YYZ
1 stop5h 50mSun Country Air
dom. 8/106:36 pmYYZ - BUF
1 stop16h 08mSun Country Air
Deal found 3/3$390
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
mar. 3/411:24 amBUF - YYZ
1 stop26h 31mMultiple Airlines
mar. 3/118:15 pmYYZ - BUF
1 stop14h 09mMultiple Airlines
Deal found 3/3$440
This United deal was found by Cheapflights users on 3/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/77:45 pmBUF - YTZ
2 stops22h 52mMultiple Airlines
mar. 4/1510:20 amYTZ - BUF
2 stops13h 24mMultiple Airlines
Deal found 3/3$442
This United deal was found by Cheapflights users on 3/4. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/2510:30 amBUF - YYZ
1 stop8h 27mUnited Airlines
mar. 4/18:10 amYYZ - BUF
1 stop10h 37mUnited Airlines
Deal found 3/4$470
This United Airlines deal was found by Cheapflights users on 3/4. 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.
jue. 4/36:00 amBUF - YOW
1 stop17h 53mUnited Airlines
mié. 4/97:29 pmYOW - BUF
1 stop14h 11mUnited Airlines
Deal found 3/4$563
This Justfly.com deal was found by Cheapflights users on 3/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/142:00 pmBUF - YUL
1 stop9h 09mMultiple Airlines
sáb. 7/1910:15 amYUL - BUF
2 stops10h 16mMultiple Airlines
Deal found 3/4$569
This WestJet deal was found by Cheapflights users on 3/4. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/186:00 amBUF - YUL
2 stops18h 39mWestJet
vie. 4/256:45 amYUL - BUF
2 stops10h 55mWestJet
Deal found 3/4$668

Find flights from Buffalo to Ontario within your budget

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 marzo 4, 2025.

Fly from

Buffalo

Fly to

Ontario

Route

Depart

Return

Price

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

mar. 4/29

4:06 pm-9:50 am

1 stop17h 44m

Montreal Pierre Elliott Trudeau Intl

mié. 4/30

12:55 pm-10:45 pm

2 stops9h 50m

$319

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

dom. 3/30

6:00 am-11:53 am

1 stop5h 53m

Montreal Pierre Elliott Trudeau Intl

dom. 4/6

9:15 am-9:11 pm

1 stop11h 56m

$352

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

dom. 3/30

6:00 am-10:27 am

1 stop4h 27m

Montreal Pierre Elliott Trudeau Intl

dom. 4/6

6:00 am-9:43 am

1 stop3h 43m

$353

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

mar. 4/1

10:30 am-5:59 pm

1 stop7h 29m

Toronto Pearson Intl

mar. 4/8

10:00 am-10:38 pm

1 stop12h 38m

$374

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

lun. 4/7

12:53 pm-11:55 am

1 stop23h 02m

Toronto Pearson Intl

mar. 4/15

5:25 pm-12:23 pm

1 stop18h 58m

$384

BuffaloToronto

BUF - YTZ

BUFYTZ

Buffalo

lun. 4/7

7:45 pm-6:37 pm

2 stops22h 52m

Toronto Island

mar. 4/15

10:20 am-11:44 pm

2 stops13h 24m

$442

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

mar. 3/25

10:30 am-6:57 pm

1 stop8h 27m

Toronto Pearson Intl

mar. 4/1

8:10 am-6:47 pm

1 stop10h 37m

$470

BuffaloToronto

BUF - YYZ

BUFYYZ

Buffalo

lun. 4/7

6:00 am-9:27 pm

2 stops15h 27m

Toronto Pearson Intl

mar. 4/15

5:05 pm-9:40 am

2 stops16h 35m

$478

BuffaloOttawa

BUF - YOW

BUFYOW

Buffalo

jue. 4/3

6:00 am-11:53 pm

1 stop17h 53m

Ottawa

mié. 4/9

7:29 pm-9:40 am

1 stop14h 11m

$563

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

lun. 7/14

2:00 pm-11:09 pm

1 stop9h 09m

Montreal Pierre Elliott Trudeau Intl

sáb. 7/19

10:15 am-8:31 pm

2 stops10h 16m

$569

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/4

Showing 1-10 of 23 results
1
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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.

Travel insights for flights from Buffalo to Ontario

Get recent, data-driven insights about flights from Buffalo to Ontario including ideal travel times, pricing trends, and more.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated marzo 4, 2025.
Get a feel of what it's like to fly with Delta, KLM and United Airlines from Buffalo to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,061 reviews

Comfort

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Delta
8.0
Very good
8,061 reviews
Delta
8.0
Very good
8,061 reviews

Comfort

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

KLM
7.8
Good
1,321 reviews
Delta
8.0
Very good
8,061 reviews

Comfort

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

United Airlines
7.4
Good
8,678 reviews
Delta
8.0
Very good
8,061 reviews

Comfort

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,061 reviews

Comfort

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

WestJet
7.2
Good
2,788 reviews
Delta
8.0
Very good
8,061 reviews

Comfort

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

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.

  • What are the cheapest airlines to fly from Buffalo to Region of Ontario one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $160. Users have also found prices from $166 and $233 on KLM and United Airlines, respectively.

  • 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.

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

    Currently, January is the cheapest month in which you can book a flight from Buffalo to Region of Ontario (average of $243). Flying from Buffalo to Region of Ontario in July is currently the most expensive (average of $359). 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

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Alternative routes for Buffalo to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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