Find flights
When to book
FAQs

Cheap flights from Buffalo to Ontario from C$ 197

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 16/4. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — ONT
30 Mar — 6 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Buffalo to Ontario

Enter your travel dates to find the best prices.

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 28 February 2026.

Tue 5/512:09 p.m.
BUF
-
ONT
1 stop9h 24m
Delta
Tue 12/510:00 p.m.
ONT
-
BUF
1 stop10h 13m
Delta
Deal found 24/2C$ 406
Tue 5/512:09 p.m.
BUF
-
ONT
1 stop9h 24m
Delta
Sat 9/510:00 p.m.
ONT
-
BUF
1 stop10h 13m
Delta
Deal found 24/2C$ 415
Sat 2/512:09 p.m.
BUF
-
ONT
1 stop9h 24m
Delta
Mon 11/510:00 p.m.
ONT
-
BUF
1 stop10h 13m
Delta
Deal found 24/2C$ 425
Wed 6/56:00 a.m.
BUF
-
ONT
1 stop8h 36m
Delta
Tue 12/510:00 p.m.
ONT
-
BUF
1 stop10h 13m
Delta
Deal found 27/2C$ 447
Mon 20/412:09 p.m.
BUF
-
ONT
1 stop9h 24m
Delta
Tue 28/410:15 p.m.
ONT
-
BUF
1 stop9h 46m
Delta
Deal found 25/2C$ 448
Sat 2/512:09 p.m.
BUF
-
ONT
1 stop9h 24m
Delta
Tue 12/510:00 p.m.
ONT
-
BUF
1 stop10h 13m
Delta
Deal found 27/2C$ 467
Wed 6/512:09 p.m.
BUF
-
ONT
1 stop9h 24m
Delta
Sat 9/512:08 p.m.
ONT
-
BUF
2 stops18h 37m
Delta
Deal found 27/2C$ 494
Sun 3/56:00 a.m.
BUF
-
ONT
1 stop8h 36m
Delta
Tue 12/510:00 p.m.
ONT
-
BUF
1 stop10h 13m
Delta
Deal found 24/2C$ 501

Find flight deals from Buffalo to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 28 February 2026.

Round-trip from

C$ 406

One-way from

C$ 197

Popular in

December

Cheapest in

October

Average price

C$ 539
Delta
  • Delta
  • 5/5-12/5
  • 2 total stops
  • 19h 37m total
  • Buffalo to Ontario
Search Deals
Frontier
  • Frontier
  • 16/4
  • 2 total stops
  • 21h 56m total
  • Buffalo to Ontario
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 629,999 searches. Data last updated 28 February 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

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Sat 2/5

12:09 p.m.-6:33 p.m.

1 stop9h 24m

Ontario

Mon 11/5

10:00 p.m.-11:13 a.m.

1 stop10h 13m

C$ 425

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Tue 5/5

8:37 a.m.-5:52 p.m.

2 stops12h 15m

Ontario

Tue 12/5

7:00 a.m.-4:54 p.m.

1 stop6h 54m

C$ 519

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 18/3

5:29 p.m.-10:18 p.m.

1 stop7h 49m

Ontario

Tue 24/3

1:50 p.m.-11:10 p.m.

1 stop6h 20m

C$ 583

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 3/6

5:52 p.m.-10:46 p.m.

1 stop7h 54m

Ontario

Sun 7/6

6:30 a.m.-4:52 p.m.

1 stop7h 22m

C$ 692

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Fri 22/5

5:52 p.m.-10:46 p.m.

1 stop7h 54m

Ontario

Wed 27/5

5:00 a.m.-9:03 p.m.

2 stops13h 03m

C$ 699

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Sun 5/4

8:30 a.m.-12:38 p.m.

1 stop7h 08m

Ontario

Tue 14/4

1:34 p.m.-11:10 p.m.

1 stop6h 36m

C$ 707

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Thu 21/5

5:52 p.m.-10:46 p.m.

1 stop7h 54m

Ontario

Fri 5/6

1:18 p.m.-10:58 p.m.

1 stop6h 40m

C$ 733

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 20/5

5:50 p.m.-10:35 p.m.

1 stop7h 45m

Ontario

Fri 22/5

6:30 a.m.-4:46 p.m.

1 stop7h 16m

C$ 740

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Sun 3/5

8:37 a.m.-12:38 p.m.

1 stop7h 01m

Ontario

Sun 10/5

6:59 p.m.-10:06 a.m.

2 stops12h 07m

C$ 740

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Sat 2/5

1:57 p.m.-6:01 p.m.

1 stop7h 04m

C$ 281

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/2

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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

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

Currently, May is the cheapest month in which you can book a flight from Buffalo to Ontario (average of C$ 176). Flying from Buffalo to Ontario in June is currently the most expensive (average of C$ 310). 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.

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.

  • How long is the flight from Buffalo to Ontario?

    United Airlines and Delta can get you from Buffalo to Ontario in just under 12h 08m. Your travel time can differ by up to 07m. The distance between Buffalo and Ontario is about 3487 km. This flight may include one or multiple stops.

  • 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 Ontario?

    Currently, May is the cheapest month in which you can book a flight from Buffalo to Ontario (average of C$ 176). Flying from Buffalo to Ontario in June is currently the most expensive (average of C$ 310). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Buffalo to Ontario?

Cheapflights helps you search for flights from Buffalo to Ontario via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Buffalo to Ontario?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Buffalo to Ontario for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Buffalo to Ontario with no change fees?

Yes! Cheapflights helps users easily find flights from Buffalo to Ontario with no change fees.

Can Cheapflights notify me if prices for flights from Buffalo to Ontario become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.