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Cheap flights from Buffalo to Ontario from C$ 209

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — ONT
2 Apr — 9 Apr1
1 adult

Cheap 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 March 2025.

Round-trip from

C$ 439

One-way from

C$ 209

Popular in

December

Cheapest in

September

Average price

C$ 603
Delta
  • Delta
  • 18/4-26/4
  • 2 total stops
  • 17h 42m total
  • Buffalo to Ontario
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JetBlue
  • JetBlue
  • 6/5
  • 1 total stop
  • 9h 06m total
  • Buffalo to Ontario
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 158 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).
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Average for round-trip flights in March 2025
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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 28 March 2025.

Fri 18/46:00 a.m.BUF - ONT
1 stop7h 57mDelta
Sat 26/410:15 p.m.ONT - BUF
1 stop9h 45mDelta
Deal found 27/3C$ 439
Fri 30/55:24 p.m.BUF - ONT
1 stop18h 40mFrontier
Sun 1/65:21 p.m.ONT - BUF
1 stop20h 08mFrontier
Deal found 26/3C$ 456
Tue 3/63:05 p.m.BUF - ONT
1 stop9h 06mJetBlue
Mon 9/610:40 p.m.ONT - BUF
1 stop8h 04mJetBlue
Deal found 26/3C$ 636
Tue 26/88:30 a.m.BUF - ONT
1 stop7h 03mUnited Airlines
Tue 9/91:00 p.m.ONT - BUF
1 stop6h 45mUnited Airlines
Deal found 27/3C$ 639
Wed 23/45:08 a.m.BUF - ONT
2 stops13h 24mAlaska Airlines
Sat 26/46:00 a.m.ONT - BUF
2 stops12h 35mAlaska Airlines
Deal found 27/3C$ 703
Sat 5/45:10 p.m.BUF - ONT
1 stop10h 00mSouthwest
Wed 9/45:30 a.m.ONT - BUF
1 stop7h 45mSouthwest
Deal found 27/3C$ 868

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 March 2025.
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

Fri 18/4

6:00 a.m.-10:57 a.m.

1 stop7h 57m

Ontario

Sat 26/4

10:15 p.m.-11:00 a.m.

1 stop9h 45m

C$ 439

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Fri 30/5

5:24 p.m.-9:04 a.m.

1 stop18h 40m

Ontario

Sun 1/6

5:21 p.m.-4:29 p.m.

1 stop20h 08m

C$ 456

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Tue 3/6

3:05 p.m.-9:11 p.m.

1 stop9h 06m

Ontario

Mon 9/6

10:40 p.m.-9:44 a.m.

1 stop8h 04m

C$ 636

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Tue 26/8

8:30 a.m.-12:33 p.m.

1 stop7h 03m

Ontario

Tue 9/9

1:00 p.m.-10:45 p.m.

1 stop6h 45m

C$ 639

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 23/4

5:08 a.m.-3:32 p.m.

2 stops13h 24m

Ontario

Sat 26/4

6:00 a.m.-9:35 p.m.

2 stops12h 35m

C$ 703

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Tue 6/5

3:05 p.m.-9:11 p.m.

1 stop9h 06m

C$ 209

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Sat 24/5

5:51 p.m.-10:26 p.m.

1 stop7h 35m

C$ 292

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Thu 10/4

6:00 a.m.-11:29 a.m.

1 stop8h 29m

C$ 370

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 16/7

5:24 p.m.-11:50 p.m.

1 stop9h 26m

C$ 492

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Thu 15/5

5:10 a.m.-3:50 p.m.

2 stops13h 40m

C$ 563

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/3

Showing 1-10 of 11 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, September is the cheapest month in which you can book a flight from Buffalo to Ontario (average of C$ 290). Flying from Buffalo to Ontario in May is currently the most expensive (average of C$ 574). 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 BUF to ONT?

Find hourly flight availability from Buffalo to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 March 2025.

A simple way to save on the total cost of your ticket is to fly from Buffalo to Ontario at noon. If you’re flexible enough to do this you can expect to save up to 27% on your trip compared to booking a flight in the morning.

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 Ontario ranges from 3.0 - 86.0 mm per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

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 Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).

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 28 March 2025.
Alaska Airlines
8.0
Very good
9,798 reviews
Check prices

Boarding

8.2

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Alaska Airlines
8.0
Very good
9,798 reviews
Alaska Airlines
8.0
Very good
9,798 reviews
Check prices

Boarding

8.2

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Delta
8.0
Very good
7,896 reviews
Alaska Airlines
8.0
Very good
9,798 reviews
Check prices

Boarding

8.2

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
United Airlines
7.4
Good
8,603 reviews
Alaska Airlines
8.0
Very good
9,798 reviews
Check prices

Boarding

8.2

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
JetBlue
7.3
Good
2,923 reviews
Alaska Airlines
8.0
Very good
9,798 reviews
Check prices

Boarding

8.2

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,798 reviews
Check prices

Boarding

8.2

Entertainment

7.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

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 are the cheapest airlines flying from Buffalo to Ontario round-trip?

    Flying on Delta is currently your cheapest option to Ontario, with prices starting at C$ 439. Additional round-trip tickets that might be worth considering are offered by Frontier and JetBlue, with the lowest prices starting at C$ 456 and C$ 636, respectively. Delta is 26% cheaper than the average price of flights available within the next 90 days to this destination.

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

    One-way options have recently been found by users for as low as C$ 209 on JetBlue. Other airlines that offer cheap prices include United Airlines from C$ 292 and Delta from C$ 370 one-way.

  • 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, September is the cheapest month in which you can book a flight from Buffalo to Ontario (average of C$ 290). Flying from Buffalo to Ontario in May is currently the most expensive (average of C$ 574). 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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Fly with Cheapflights

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

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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.

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!

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