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$111+ Cheap flights from Ontario to Buffalo (ONT - BUF)

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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BUF
mar. 15 — mar. 221
sáb. 3/15
sáb. 3/22
1 adult, Economy
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The best prices from Ontario to Buffalo are usually found in September or January, booked 29 days in advance, depart on a Monday or Wednesday and return on a Saturday

Cheap flight deals from Ontario to Buffalo

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Buffalo (BUF). 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 marzo 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$286
(Trip.com)

One-way from

$111
(Booking.com)

Popular in

November

Cheapest in

September

Average price

$531
Provider with most accurate pricing for Ontario-Buffalo flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Buffalo flights.
Search Deals
From Ontario to Buffalo
Search Deals
One-way flight from Ontario to Buffalo
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
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Find flight deals from Ontario to Buffalo

Cheapest flights from Ontario to Buffalo
Explore the most affordable flight options available from Ontario to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 10, 2025.

This Trip.com deal was found by Cheapflights users on 3/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/19:39 pmONT - BUF
2 stops17h 31mFrontier
sáb. 4/511:24 amBUF - ONT
2 stops15h 35mFrontier
Deal found 3/10$286
This Delta deal was found by Cheapflights users on 3/9. 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.
mar. 4/1510:15 pmONT - BUF
1 stop9h 45mDelta
mar. 4/2212:05 pmBUF - ONT
1 stop10h 23mDelta
Deal found 3/9$307
This American Airlines deal was found by Cheapflights users on 3/10. 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.
mar. 5/206:15 amONT - BUF
1 stop9h 27mAmerican Airlines
mié. 8/208:28 amBUF - ONT
2 stops9h 24mAmerican Airlines
Deal found 3/10$332
This Southwest deal was found by Cheapflights users on 3/9. 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.
vie. 5/95:20 amONT - BUF
1 stop9h 45mSouthwest
lun. 5/123:55 pmBUF - ONT
1 stop10h 05mSouthwest
Deal found 3/9$402
This JetBlue deal was found by Cheapflights users on 3/10. 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.
lun. 6/210:40 pmONT - BUF
1 stop8h 04mJetBlue
jue. 6/53:05 pmBUF - ONT
1 stop9h 17mJetBlue
Deal found 3/10$442
This United Airlines deal was found by Cheapflights users on 3/9. 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.
jue. 4/37:05 amONT - BUF
2 stops13h 39mUnited Airlines
mié. 4/910:54 amBUF - ONT
2 stops12h 48mUnited Airlines
Deal found 3/9$454
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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.
mar. 4/1510:18 amONT - BUF
3 stops23h 30mAlaska Airlines
mar. 4/225:25 amBUF - ONT
2 stops13h 07mAlaska Airlines
Deal found 3/9$602

Find flights from Ontario to Buffalo within your budget

Customize your flight search to find flights from Ontario to Buffalo 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 marzo 10, 2025.

Fly from

Ontario

Fly to

Buffalo

Route

Depart

Return

Price

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

mar. 4/1

9:39 pm-6:10 pm

2 stops17h 31m

Buffalo

sáb. 4/5

11:24 am-11:59 pm

2 stops15h 35m

$286

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

mar. 4/15

10:15 pm-11:00 am

1 stop9h 45m

Buffalo

mar. 4/22

12:05 pm-7:28 pm

1 stop10h 23m

$307

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

mar. 5/20

6:15 am-6:42 pm

1 stop9h 27m

Buffalo

mié. 8/20

8:28 am-2:52 pm

2 stops9h 24m

$332

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

vie. 5/9

5:20 am-6:05 pm

1 stop9h 45m

Buffalo

lun. 5/12

3:55 pm-11:00 pm

1 stop10h 05m

$402

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

lun. 6/2

10:40 pm-9:44 am

1 stop8h 04m

Buffalo

jue. 6/5

3:05 pm-9:22 pm

1 stop9h 17m

$442

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

jue. 4/3

7:05 am-11:44 pm

2 stops13h 39m

Buffalo

mié. 4/9

10:54 am-8:42 pm

2 stops12h 48m

$454

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

mar. 4/15

10:18 am-12:48 pm

3 stops23h 30m

Buffalo

mar. 4/22

5:25 am-3:32 pm

2 stops13h 07m

$602

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

mar. 5/27

5:21 pm-4:29 pm

1 stop20h 08m

$111

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

sáb. 5/3

10:40 pm-9:48 am

1 stop8h 08m

$136

OntarioBuffalo

ONT - BUF

ONTBUF

Ontario

vie. 5/30

12:45 pm-10:31 pm

1 stop6h 46m

$154

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 13 results
1
2

Compare providers for flights from Ontario to Buffalo

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 Ontario to Buffalo 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 Ontario-Buffalo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Buffalo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Buffalo flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Buffalo 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 Ontario-Buffalo 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 Ontario to Buffalo

Have a flexible travel schedule? Discover the best time to fly to Buffalo from Ontario 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.

Travel insights for flights from Ontario to Buffalo

Get recent, data-driven insights about flights from Ontario to Buffalo including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Ontario to Buffalo?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Buffalo. Price data was last updated on March 7, 2025.

The best time to book flights from Ontario to Buffalo is 29 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Ontario to Buffalo (average of $256). Flying from Ontario to Buffalo in December is currently the most expensive (average of $337). 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 ONT to BUF?

Find hourly flight availability from Ontario to Buffalo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated marzo 10, 2025.

One of the essential ways to save on airfare from Ontario to Buffalo is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 44% on airfare.

Rainfall in Buffalo by month

Plan your trip to Buffalo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Buffalo ranges from 2.5 - 4.0 inches per month. November is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Buffalo when rainfall is around 2.5 in.

Temperature in Buffalo by month

Plan your trip to Buffalo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Buffalo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

Reviews of airlines servicing Buffalo

Get insights into the airlines that provide service to Buffalo. 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 Buffalo. Reviews last updated marzo 10, 2025.
To help decide which airline to fly from Ontario to Buffalo, see what other customers have to say about Southwest, Alaska Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,300 reviews

Entertainment

7.6

Food

7.1

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

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
4,300 reviews
Southwest
8.1
Very good
4,300 reviews

Entertainment

7.6

Food

7.1

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

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
9,731 reviews
Southwest
8.1
Very good
4,300 reviews

Entertainment

7.6

Food

7.1

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

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
7,973 reviews
Southwest
8.1
Very good
4,300 reviews

Entertainment

7.6

Food

7.1

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

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
8,631 reviews
Southwest
8.1
Very good
4,300 reviews

Entertainment

7.6

Food

7.1

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

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
2,963 reviews
Southwest
8.1
Very good
4,300 reviews

Entertainment

7.6

Food

7.1

Crew

8.7

Overall

8.1

Boarding

8.2

Comfort

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 Ontario to Buffalo. 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 Ontario to Buffalo round-trip?

    According to our current data, Frontier ($286), Delta ($307), and American Airlines ($332) offers the cheapest pricing from Ontario to Buffalo. Frontier is 40% cheaper than the average price of flights available within the next 90 days to this destination.

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

    One-way options have recently been found by users for as low as $111 on Frontier. Other airlines that offer cheap prices include JetBlue from $136 and American Airlines from $154 one-way.

  • Can I find deals for flights from Ontario to Buffalo that include hotel bookings?

    Yes. In addition to deals on Ontario to Buffalo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Buffalo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Buffalo.

  • Can I find deals for business class flights from Ontario to Buffalo?

    Yes. Cheapflights offers flight deals from Ontario to Buffalo 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 Ontario to Buffalo?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Buffalo (average of $256). Flying from Ontario to Buffalo in December is currently the most expensive (average of $337). 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

Traveling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
West Seneca
Williamsville
Amherst
Batavia
Orchard Park
Cheektowaga

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Top 5 airlines flying from Ontario to Buffalo

Discover the top 5 airlines that operate flights from Ontario to Buffalo. 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 marzo 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$138Average$288FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$236Average$453FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$259Average$657FlexibilityNo cancel feeOn-time62%
DeltaCheapest$286Average$477FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$346Average$426FlexibilityNo cancel feeOn-time63%
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