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$139+ Cheap flights from Buffalo to Ontario (BUF - ONT)

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 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — ONT
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$307
(Delta)

One-way from

$139
(Frontier)

Popular in

December

Cheapest in

September

Average price

$422
Provider with most accurate pricing for Buffalo-Ontario flight deals.
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Provider most trusted by Cheapflights users for Buffalo-Ontario flights.
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From Buffalo to Ontario
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One-way flight from Buffalo to Ontario
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Highest demand for flights based on searches. 15% potential increase in price ($78 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 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 March 28, 2025.

This Delta deal was found by Cheapflights users on 3/26. 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.
Fri 4/186:00 amBUF - ONT
1 stop7h 57mDelta
Sat 4/2612:07 pmONT - BUF
1 stop8h 50mDelta
Deal found 3/26$307
This Justfly.com deal was found by Cheapflights users on 3/26. 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.
Fri 5/305:24 pmBUF - ONT
1 stop18h 40mFrontier
Sun 6/15:21 pmONT - BUF
1 stop20h 08mFrontier
Deal found 3/26$319
This American Airlines deal was found by Cheapflights users on 3/26. 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.
Wed 7/911:50 amBUF - ONT
2 stops9h 18mAmerican Airlines
Wed 7/1610:53 amONT - BUF
2 stops10h 39mAmerican Airlines
Deal found 3/26$357
This JetBlue deal was found by Cheapflights users on 3/26. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/303:05 pmBUF - ONT
1 stop9h 20mJetBlue
Wed 5/710:59 pmONT - BUF
1 stop7h 44mJetBlue
Deal found 3/26$371
This Southwest deal was found by Cheapflights users on 3/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/265:05 amBUF - ONT
1 stop6h 50mSouthwest
Sat 7/59:20 pmONT - BUF
1 stop7h 40mSouthwest
Deal found 3/26$382
This United Airlines deal was found by Cheapflights users on 3/26. 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.
Wed 8/65:54 pmBUF - ONT
1 stop7h 17mUnited Airlines
Mon 8/111:34 pmONT - BUF
1 stop6h 21mUnited Airlines
Deal found 3/26$482
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/235:08 amBUF - ONT
2 stops13h 24mAlaska Airlines
Sat 4/266:00 amONT - BUF
2 stops12h 35mAlaska Airlines
Deal found 3/27$492
This Orbitz deal was found by Cheapflights users on 3/26. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/95:14 amBUF - ONT
2 stops12h 32mMultiple Airlines
Tue 7/1512:59 amONT - BUF
1 stop12h 38mMultiple Airlines
Deal found 3/26$753

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 2,558,603 searches. Data last updated March 28, 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 4/18

6:00 am-10:57 am

1 stop7h 57m

Ontario

Sat 4/26

12:07 pm-11:57 pm

1 stop8h 50m

$307

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Fri 5/30

5:24 pm-9:04 am

1 stop18h 40m

Ontario

Sun 6/1

5:21 pm-4:29 pm

1 stop20h 08m

$319

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 7/9

11:50 am-6:08 pm

2 stops9h 18m

Ontario

Wed 7/16

10:53 am-12:32 am

2 stops10h 39m

$357

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 4/30

3:05 pm-9:25 pm

1 stop9h 20m

Ontario

Wed 5/7

10:59 pm-9:43 am

1 stop7h 44m

$371

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Thu 6/26

5:05 am-8:55 am

1 stop6h 50m

Ontario

Sat 7/5

9:20 pm-8:00 am

1 stop7h 40m

$382

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 8/6

5:54 pm-10:11 pm

1 stop7h 17m

Ontario

Mon 8/11

1:34 pm-10:55 pm

1 stop6h 21m

$482

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 4/23

5:08 am-3:32 pm

2 stops13h 24m

Ontario

Sat 4/26

6:00 am-9:35 pm

2 stops12h 35m

$492

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Wed 7/9

5:14 am-2:46 pm

2 stops12h 32m

Ontario

Tue 7/15

12:59 am-4:37 pm

1 stop12h 38m

$753

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Fri 5/23

5:24 pm-11:51 pm

1 stop9h 27m

$139

BuffaloOntario

BUF - ONT

BUFONT

Buffalo

Tue 5/6

3:05 pm-9:11 pm

1 stop9h 06m

$146

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 15 results
1
2

Compare providers for flights from Buffalo to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to Ontario in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Buffalo-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Buffalo-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, August is the cheapest month in which you can book a flight from Buffalo to Ontario (average of $246). Flying from Buffalo to Ontario in March is currently the most expensive (average of $326). 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 March 28, 2025.

One of the essential ways to save on airfare from Buffalo to Ontario is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 71% on airfare.

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 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 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 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 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 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 March 28, 2025.
Southwest
8.1
Very good
4,274 reviews

Comfort

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.1
Very good
4,274 reviews
Southwest
8.1
Very good
4,274 reviews

Comfort

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Alaska Airlines
8.0
Very good
9,798 reviews
Southwest
8.1
Very good
4,274 reviews

Comfort

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Delta
8.0
Very good
7,897 reviews
Southwest
8.1
Very good
4,274 reviews

Comfort

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,274 reviews

Comfort

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
JetBlue
7.3
Good
2,923 reviews
Southwest
8.1
Very good
4,274 reviews

Comfort

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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?

    According to our current data, Delta ($307), Frontier ($319), and American Airlines ($367) offers the cheapest pricing from Buffalo to Ontario. You may be able to fly from Buffalo to Ontario for 26% less than the average price by searching for these airlines.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $139. However, be on the lookout for offers from JetBlue and American Airlines, as they are both options that can get you from Buffalo to Ontario for a low price.

  • 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, August is the cheapest month in which you can book a flight from Buffalo to Ontario (average of $246). Flying from Buffalo to Ontario in March is currently the most expensive (average of $326). 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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Top 3 airlines flying from Buffalo to Ontario

Discover the top 3 airlines that operate flights from Buffalo to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$192Average$411FlexibilityNo cancel feeOn-time71%
DeltaCheapest$275Average$356FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$367Average$491FlexibilityNo cancel feeOn-time63%
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