Find flights
When to book
FAQs

Cheap flights from Buffalo to Ontario from C$ 260

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 27/5. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — ONT
23 May — 30 May1
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 23 April 2026.

Wed 3/65:52 p.m.
BUF
-
ONT
1 stop7h 54m
United Airlines
Tue 9/66:30 a.m.
ONT
-
BUF
1 stop7h 16m
United Airlines
Deal found 22/4C$ 518
Tue 25/810:54 a.m.
BUF
-
ONT
1 stop10h 25m
United Airlines
Tue 1/97:13 p.m.
ONT
-
BUF
2 stops11h 01m
United Airlines
Deal found 23/4C$ 525
Thu 10/910:54 a.m.
BUF
-
ONT
1 stop10h 25m
United Airlines
Tue 15/97:13 p.m.
ONT
-
BUF
2 stops11h 01m
United Airlines
Deal found 21/4C$ 563
Wed 3/66:40 a.m.
BUF
-
ONT
1 stop7h 55m
Southwest
Wed 10/69:40 p.m.
ONT
-
BUF
1 stop7h 30m
Southwest
Deal found 19/4C$ 570
Tue 14/711:00 a.m.
BUF
-
ONT
2 stops9h 55m
Southwest
Tue 21/79:40 p.m.
ONT
-
BUF
1 stop7h 20m
Southwest
Deal found 22/4C$ 576
Wed 27/55:57 p.m.
BUF
-
ONT
1 stop7h 54m
United Airlines
Sat 30/56:30 a.m.
ONT
-
BUF
1 stop7h 21m
United Airlines
Deal found 22/4C$ 586
Tue 18/810:54 a.m.
BUF
-
ONT
1 stop10h 25m
United Airlines
Tue 25/87:13 p.m.
ONT
-
BUF
2 stops11h 01m
United Airlines
Deal found 21/4C$ 593
Thu 16/75:12 p.m.
BUF
-
ONT
1 stop7h 32m
Delta
Tue 21/711:48 a.m.
ONT
-
BUF
1 stop9h 11m
Delta
Deal found 22/4C$ 611
Wed 29/712:16 p.m.
BUF
-
ONT
2 stops14h 28m
Delta
Wed 5/85:16 p.m.
ONT
-
BUF
2 stops11h 59m
Delta
Deal found 20/4C$ 624
Sun 12/76:00 a.m.
BUF
-
ONT
1 stop7h 38m
Delta
Thu 23/710:00 p.m.
ONT
-
BUF
2 stops22h 38m
Delta
Deal found 22/4C$ 649

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 23 April 2026.

Round-trip from

C$ 518

One-way from

C$ 260

Popular in

December

Cheapest in

October

Average price

C$ 937
United Airlines
  • United Airlines
  • 3/6-9/6
  • 2 total stops
  • 15h 10m total
  • Buffalo to Ontario
Search Deals
United Airlines
  • United Airlines
  • 27/5
  • 1 total stop
  • 7h 54m total
  • Buffalo to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 23 April 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

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Tue 14/7

6:00 a.m.-12:05 p.m.

1 stop9h 05m

Ontario

Tue 21/7

7:20 p.m.-8:00 a.m.

2 stops9h 40m

C$ 576
Quickest round-trip

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Thu 4/6

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

1 stop7h 54m

Ontario

Tue 9/6

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

1 stop6h 40m

C$ 624

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Fri 22/5

4:55 p.m.-9:48 p.m.

1 stop7h 53m

Ontario

Mon 25/5

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

1 stop10h 13m

C$ 652

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Sat 23/5

6:25 a.m.-12:19 p.m.

2 stops8h 54m

Ontario

Mon 25/5

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

1 stop10h 13m

C$ 658

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Fri 5/6

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

1 stop7h 54m

Ontario

Tue 9/6

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

1 stop7h 16m

C$ 661

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Sat 9/5

6:00 a.m.-6:01 p.m.

2 stops15h 01m

Ontario

Tue 12/5

6:59 p.m.-9:42 a.m.

2 stops11h 43m

C$ 665

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Tue 14/7

5:52 p.m.-10:51 p.m.

1 stop7h 59m

Ontario

Tue 21/7

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

1 stop6h 40m

C$ 720

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Sat 6/6

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

1 stop7h 54m

Ontario

Tue 9/6

6:30 p.m.-11:59 p.m.

2 stops26h 29m

C$ 749

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Fri 15/5

5:45 a.m.-3:15 p.m.

1 stop12h 30m

Ontario

Mon 18/5

9:55 p.m.-7:50 a.m.

1 stop6h 55m

C$ 755

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Sat 6/6

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

1 stop7h 54m

Ontario

Mon 8/6

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

1 stop7h 16m

C$ 810

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/4

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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, October is the cheapest month in which you can book a flight from Buffalo to Ontario (average of C$ 418). Flying from Buffalo to Ontario in December is currently the most expensive (average of C$ 938). 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.

How much does it cost to fly round-trip from Buffalo to Ontario?

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?

    Southwest, United Airlines, and Delta can get you from Buffalo to Ontario in just under 7h 53m. Your travel time can differ by up to 1h 12m. 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, October is the cheapest month in which you can book a flight from Buffalo to Ontario (average of C$ 418). Flying from Buffalo to Ontario in December is currently the most expensive (average of C$ 938). 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.