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Cheap flights from Buffalo to Ontario from C$ 223

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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — ONT
16 Mar — 23 Mar1
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 14 February 2026.

Sat 23/54:00 p.m.
BUF
-
ONT
1 stop9h 09m
JetBlue
Fri 29/511:25 p.m.
ONT
-
BUF
1 stop9h 04m
JetBlue
Deal found 13/2C$ 466
Tue 5/58:37 a.m.
BUF
-
ONT
1 stop7h 01m
United Airlines
Wed 27/56:30 p.m.
ONT
-
BUF
2 stops12h 10m
United Airlines
Deal found 12/2C$ 486
Mon 16/32:59 p.m.
BUF
-
ONT
2 stops23h 48m
Delta
Tue 17/310:25 p.m.
ONT
-
BUF
1 stop9h 36m
Delta
Deal found 11/2C$ 493
Wed 27/54:00 p.m.
BUF
-
ONT
1 stop9h 09m
JetBlue
Tue 2/611:25 p.m.
ONT
-
BUF
1 stop9h 04m
JetBlue
Deal found 14/2C$ 512
Wed 27/56:20 a.m.
BUF
-
ONT
1 stop7h 37m
Delta
Wed 3/612:10 p.m.
ONT
-
BUF
1 stop8h 49m
Delta
Deal found 14/2C$ 513
Thu 28/56:04 a.m.
BUF
-
ONT
2 stops18h 50m
Delta
Tue 2/612:10 p.m.
ONT
-
BUF
1 stop8h 49m
Delta
Deal found 14/2C$ 546
Tue 17/36:00 a.m.
BUF
-
ONT
1 stop8h 47m
Delta
Tue 17/310:25 p.m.
ONT
-
BUF
1 stop9h 36m
Delta
Deal found 11/2C$ 549
Wed 27/56:20 a.m.
BUF
-
ONT
1 stop7h 37m
Delta
Tue 2/612:10 p.m.
ONT
-
BUF
2 stops18h 35m
Delta
Deal found 14/2C$ 551
Wed 27/56:20 a.m.
BUF
-
ONT
1 stop7h 37m
Delta
Sun 31/511:04 p.m.
ONT
-
BUF
1 stop8h 59m
Delta
Deal found 14/2C$ 554

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 14 February 2026.

Round-trip from

C$ 466

One-way from

C$ 223

Popular in

December

Cheapest in

October

Average price

C$ 538
JetBlue
  • JetBlue
  • 23/5-29/5
  • 2 total stops
  • 18h 13m total
  • Buffalo to Ontario
Search Deals
Delta
  • Delta
  • 13/5
  • 1 total stop
  • 7h 59m total
  • Buffalo to Ontario
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 36 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 14 February 2026.
Use the filters below to find and compare flights from Buffalo to Ontario that are best for you.

Fly from

Buffalo

Fly to

Ontario

Route

Depart

Return

Price

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Thu 28/5

4:00 p.m.-10:09 p.m.

1 stop9h 09m

Ontario

Tue 2/6

11:25 p.m.-11:29 a.m.

1 stop9h 04m

C$ 512

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 27/5

6:20 a.m.-10:57 a.m.

1 stop7h 37m

Ontario

Tue 2/6

12:10 p.m.-9:45 a.m.

2 stops18h 35m

C$ 551

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Tue 24/3

8:17 a.m.-12:49 p.m.

1 stop7h 32m

Ontario

Tue 31/3

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

1 stop6h 36m

C$ 580

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Fri 29/5

6:04 a.m.-9:54 p.m.

2 stops18h 50m

Ontario

Tue 2/6

12:10 p.m.-9:45 a.m.

2 stops18h 35m

C$ 584

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Fri 29/5

6:04 a.m.-9:54 p.m.

2 stops18h 50m

Ontario

Sun 31/5

11:04 p.m.-11:03 a.m.

1 stop8h 59m

C$ 587

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Tue 17/3

10:23 a.m.-10:18 p.m.

2 stops14h 55m

Ontario

Wed 18/3

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

1 stop6h 20m

C$ 588

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Thu 28/5

6:20 a.m.-10:57 a.m.

1 stop7h 37m

Ontario

Sun 31/5

11:04 p.m.-11:03 a.m.

1 stop8h 59m

C$ 595

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Fri 29/5

4:55 p.m.-9:54 p.m.

1 stop7h 59m

Ontario

Thu 4/6

12:10 p.m.-11:59 p.m.

1 stop8h 49m

C$ 595

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Mon 16/3

2:59 p.m.-11:47 a.m.

2 stops23h 48m

Ontario

Wed 18/3

12:57 p.m.-11:46 p.m.

1 stop7h 49m

C$ 596

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 27/5

10:32 a.m.-6:36 p.m.

2 stops11h 04m

Ontario

Thu 4/6

12:10 p.m.-11:59 p.m.

1 stop8h 49m

C$ 602

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/2

Showing 1-10 of 21 results
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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

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

Currently, January is the cheapest month in which you can book a flight from Buffalo to Ontario (average of C$ 181). Flying from Buffalo to Ontario in June is currently the most expensive (average of C$ 309). 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?

    JetBlue, Delta, and United Airlines can get you from Buffalo to Ontario in just under 7h 32m. Your travel time can differ by up to 1h 37m. 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, January is the cheapest month in which you can book a flight from Buffalo to Ontario (average of C$ 181). Flying from Buffalo to Ontario in June is currently the most expensive (average of C$ 309). 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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Why should you use Cheapflights to find cheap flight tickets from Buffalo to Ontario?

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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.

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