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ONT - BUF

Find cheap flights from Ontario to Buffalo from $79

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Buffalo departing on 4/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 4/18
Thu 4/25

Search hundreds of travel sites at once for deals on flights to Buffalo

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Buffalo, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Buffalo, as well as popular online travel agencies
In the last 7 days travelers have searched 47,600,107 times on KAYAK, and here is why:

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Cheap flight deals from Ontario to Buffalo

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Buffalo that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
12:59 am - 8:53 pmONT-BUF
16h 54m1 stop
9:43 pm - 11:56 pmBUF-ONT
29h 13m1 stop
$137Frontier
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Tue, Apr 16 - Wed, Apr 24
7:26 am - 8:53 pmONT-BUF
10h 27m1 stop
7:12 pm - 11:59 pmBUF-ONT
7h 47m1 stop
$138Frontier
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Wed, Apr 10 - Sat, Apr 13
12:53 pm - 10:59 pmONT-BUF
7h 06m1 stop
6:35 am - 1:53 pmBUF-ONT
10h 18m1 stop
$296American Airlines
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Thu, Apr 11 - Tue, Apr 23
10:00 am - 12:38 amONT-BUF
11h 38m2 stops
6:35 am - 1:53 pmBUF-ONT
10h 18m1 stop
$301American Airlines
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Thu, Apr 11 - Tue, Apr 23
12:35 pm - 11:59 pmONT-BUF
8h 24m1 stop
6:00 am - 11:22 amBUF-ONT
8h 22m1 stop
$327Delta
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Thu, Apr 11 - Tue, Apr 23
6:10 am - 12:18 amONT-BUF
15h 08m2 stops
6:00 am - 11:22 amBUF-ONT
8h 22m1 stop
$385Delta
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Thu, Apr 11 - Tue, Apr 23
11:49 pm - 2:21 pmONT-BUF
11h 32m1 stop
3:10 pm - 10:33 pmBUF-ONT
10h 23m1 stop
$522JetBlue
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Mon, Jun 17 - Thu, Jul 4
5:15 am - 9:01 pmONT-BUF
12h 46m2 stops
6:15 am - 8:40 pmBUF-ONT
17h 25m2 stops
$542United Airlines
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Tue, Apr 16 - Sat, Apr 20
6:25 pm - 9:46 amONT-BUF
12h 21m2 stops
1:56 pm - 8:48 pmBUF-ONT
9h 52m2 stops
$557United Airlines
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Tue, Aug 6 - Tue, Aug 13
11:49 pm - 2:21 pmONT-BUF
11h 32m1 stop
3:10 pm - 10:33 pmBUF-ONT
10h 23m1 stop
$612JetBlue
Find Deal
Wed, Jul 3 - Wed, Jul 10

Flights from Ontario to Buffalo - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to Buffalo to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Ontario to Buffalo?

The average price of all flights from Ontario to Buffalo clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Buffalo on a Sunday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from Ontario to Buffalo. For your return ticket, we recommend flying on a Friday and avoiding Mondays for the best deals.

What is the cheapest month to fly from Ontario to Buffalo?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ontario to Buffalo, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Ontario to Buffalo is September, where tickets cost $278 on average. On the other hand, the most expensive months are July and June, where the average cost of tickets is $506 and $502 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to Buffalo, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ontario to Buffalo, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 39 days before departure.

Which airlines provide the cheapest flights from Ontario to Buffalo?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, Frontier offered the best one-way deal for that route, at $79. KAYAK users also found Ontario to Buffalo round-trip flights on Frontier from $137 and on American Airlines from $296.

How long does a flight from Ontario to Buffalo take?

There are no direct flights for this route. The shortest travel duration to get to Buffalo from Ontario is 7h 06m.

Good to know

Low season

February

High season

September

Cheapest flight

$79
Best time to beat the crowds with an average 41% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from Ontario to Buffalo

When to book flights from Ontario to Buffalo

Are your dates flexible? Find out the best times to travel from Ontario to Buffalo based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Buffalo

  • What is the cheapest flight from Ontario to Buffalo?

    In the last 3 days, the lowest price for a flight from Ontario to Buffalo was $79 for a one-way ticket and $137 for a round-trip.

  • Do I need a passport to fly between Ontario and Buffalo?

    No, a passport isn't needed to fly from Ontario to Buffalo. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Ontario to Buffalo?

    Ontario airport is called Ontario and the only airport in Buffalo is Buffalo.

  • Which aircraft models fly most regularly from Ontario to Buffalo?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Buffalo?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Ontario and Buffalo, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Ontario to Buffalo, Delta or JetBlue?

    The two airlines most popular with KAYAK users for flights from Ontario to Buffalo are Delta and JetBlue. With an average price for the route of $480 and an overall rating of 8.0, Delta is the most popular choice. JetBlue is also a great choice for the route, with an average price of $406 and an overall rating of 7.7.

  • How does KAYAK find such low prices on flights from Ontario to Buffalo?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Buffalo.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Buffalo?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buffalo from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Buffalo?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Buffalo with an airline and back to Ontario with another airline. Booking your flights between Ontario and BUF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Buffalo?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Buffalo from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 4 airlines serving from Ontario to Buffalo

Need help choosing which airline to fly with from Ontario to Buffalo? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to KAYAK reviews.
8.0
DeltaOverall score based on 11551 reviews
75food
81overall
82boarding
79comfort
81entertainment
86crew
Airline reviews

Boarding was a sh!t show. JFK BOARDING was awful. The agent called three sections at a time Clogging the area then yelling at people to not block the walk way. How are you going to call delta one , premium select and comfort plus at once and the yell at highest paying passengers. Need to do a lot better and the flight attendants in the galley need to understand that their voices travel. They were talking about others and everyone in the cabin heard them

Read more about Delta

Boarding was a sh!t show. JFK BOARDING was awful. The agent called three sections at a time Clogging the area then yelling at people to not block the walk way. How are you going to call delta one , premium select and comfort plus at once and the yell at highest paying passengers. Need to do a lot better and the flight attendants in the galley need to understand that their voices travel. They were talking about others and everyone in the cabin heard them

The main person that was coordinating everything was a short white/light skin Spanish man and he was very rude. It honestly made me feel like it was everyone’s First day at work. His announcements were very not reasonable and they did not make sense. The stewardess on the flight that made the announcements she didn’t even know what she was talking about she sounded inebriated. There were no snacks or drinks on our flight there wasn’t even much turbulence. This flight was not enjoyable nor was it what a Delta flight should be and just this past week I flew with Delta 3 times.

Horrible. First delta flight was delayed. I ran to my connecting flight and arrived to the gate 13 mins before departure. I told the gate agent “I’m here”, she told me flight was closed while giving my already confirmed seat to an stand by passenger. I said again “madam, I’m here with my confirmed seat” and she said “no you’re not here@ and gave two stand by people a boarding pass and let them board. I asked “madam, why do you do that?”, and she repeated “you’re not here”. That was very rude. I’m disappointed of delta. It used to have a good customer service. Things have changed, but not for good.

full flihgt but crew and passengers all helped eachother we landed early! however we then had to wait 40 minutes on the tarmac to get into the gate there were people trying get connecting flights, assume its an airport issue but still frustrating

We flew early evening on New Year's Eve. Our plane was less than half full... Great for the passenger experience -- not so much for the airline lol. Comfortable, spacious, smooth flight -- and early arrival!

The crew was horrible. Cleo was the most unwelcoming flight attendant I’ve ever had.

The flight was overbooked and the staff at the gate started calling for volunteers to drop out and offering incentives. That delayed the flight

Do not get fooled by the term “Delta One” flat bed! The seats were super narrow. The ottoman for the feet was so narrow that when you recline the seat in flat bed position, you can only fit one foot in the 8” width space. There was only 1 flight attendant for First Class. The breakfast took 2 hours to get served. Instead of offering French Toast, the served bread pudding. The champagne with orange juice or Mimosa tasted terrible. Almost all the movies offered were ridiculously old. For a long flight from San Francisco to NY, it was frustrating! I DO NOT RECOMMEND this flight!!!

Really big guy next to me Attendants moved him to an open row

the entertainment for the flight from DAL-LGA was not available.

no wifi and the aircraft was very old with tiny 4” screens.

After we landed, we were held on the plane for 30 minutes. There was no one at the gate once we landed and we forced to sit on a plan that had already over an hour delayed.

Flawless trip. Pilot came out and introduced himself, welcomed everyone, made a light joke to put everyone at ease. Arrived quite early.

JetBlue's check-in was great, but there was an in-flight flight attendant who was very rude and unkind. I didn't realize that the bathrooms were already locked 30 mins prior to landing and needed to use the restroom. Instead of politely asking me to return, she rudely told me, 'No, bathrooms are locked! Go back to your seat!' The flight was more than an hour delay, which made me almost miss my connecting flight. I understand the reasoning, but the action they took to get a hold of maintenance was time consuming. It took them so long to get a hold of maintenance and for maintenance to get started. Most importantly, my 3 checked baggages are missing! I'm writing this review 3 days after my arrival to the Philippines, and my 3 checked baggages, where my wedding dress is, are all missing!

Safe takeoff and landing Better snacks and coffee. Headphones for the TV monitors.

I didn't like the 2 hour delay and then mechanical issue once we were on board.

Long flight but food was good, with free pillow and blanket. CREW WAS GOOD.

For some reason, the seats on this flight seemed unusually uncomfortable. Speaking with friends who took another JetBlue flight later in the day, they brought up the same issue.

Please, for the love of all things good…clean the plane. There’s less filth on seat and floor after my 2 year old niece throws Mac-n-cheese everywhere.

The service was very good, will use the airline again.

Cut off carry ons, had to check, got on and there was plenty of bin space. Disappointing.

One of the worst flights I have ever taken Delayed over an hour without communication from the crew; very scary Entertainment not working Crew NASTY cabin cold

May never fly American again Delay in take off WITHOUT EXPLANATION Cabin freezing Crew NASTY entertainment did not work entire flight

It was wonderful upgrading to first. Plane was so cold thou. Crew was great. Wish there was a food option in first for such a long flight. Doesnt matter the time of day. Chintzy.

The flight was so short that the lack of leg room didn't bother me for long. The plane was smaller so only two seats per row and there were chargers. However, they didn't serve any snacks.

We liked quick boarding and on time departure. Seats were very uncomfortable.

Horrible trip. I won't fly AA again Boarding was a nightmare because they squeezed people into the waiting like sardines. My connection was 30 minutes and the run to the gate was horrible. Then the flight was canceled AFTER boarding. The Flight attendants did not know what to do and gave out the wrong instructions. They finally sent us to a different gate. Again, the waiting was like a sardine tin. The flight was okay and my baggage arrived fine.

Wheelchair was waiting for me,changed to a better seat which was great as it's hard for me to walk

My first time flying American Airlines, my first flight to CLT was wonderful and flight attendants was nice and had great customer service. My second flight from CLT to NY was very delayed due to whatever reason the crew was not greeting other than that I’m rate 8 .

Ther is no fly,over book .and they let out in San pedro sula ,antil Monday 2 of October 2023

First time flying with Frontier . From buying tickets ,getting boarding pass and boarding plane was super easy. Definitely would fly again with Frontier .

The flight was delayed and I had to cancel because I would have missed my connection and there were no other flights for the next two days. They also lost my bag!!

they charge too much when you arrive in the air port

My first time to fly Frontier and loved it! Boarding was super easy as we only had personal items. Crew was helpful and funny and the plane was clean. Pilot was also great at landing the plane smoothly.

The only thing that may be concerning to others is the multiple notifications of a delayed flight. Then, with less than an hour before boarding, the flight was on time. The gate changed several times, leading to confusion.

late late late late no accountability no refund no adjustment no reasonable solution

4 hour delay. No updates or apology from staff. Uncomfortable seats, wonky bad restrictions and up charges, really terrible experience and will never fly frontier again.

This isna terribly run airlines. If you're one minute late, they will deny your ticket. Don't waste your time or money

Flight was delayed for more than 3 hours, crew at ONT airport was rude, and when we got to DFW the airplane had an issue landing, we had to be taxied to the terminal, and the luggage was hold until the next day.

Several delays in a row totaling two hours with no information announcements and no explanations given. Rude and unapologetic onboard flight attendant addressing those of us in overpriced emergency exits as if we were idiots. It had been a while since I felt treated like cattle. I will do my best to avoid Frontier as much as possible in the future.

Book cheap flights from Ontario to Buffalo

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to Buffalo found on KAYAK in the last 72 hours.
4/12Fri
1 stopFrontier
14h 13mONT-BUF
$79
4/18Thu
1 stopFrontier
23h 52mONT-BUF
$80
4/17Wed
3 stops
27h 47mONT-BUF
$169
3/30Sat
2 stopsAmerican Airlines
11h 59mONT-BUF
$188
4/7Sun
3 stops
56h 43mONT-BUF
$213
5/10Fri
1 stopDelta
10h 07mONT-BUF
$239
3/27Wed
1 stopDelta
8h 11mONT-BUF
$258
8/14Wed
1 stopJetBlue
11h 32mONT-BUF
$264
5/29Wed
1 stopAmerican Airlines
8h 49mONT-BUF
$273
6/24Mon
1 stopJetBlue
11h 32mONT-BUF
$307

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Last minute flights from Ontario to Buffalo

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Ontario to Buffalo that are departing in the next 10 days.
3/23Sat
multi-stopUnited Airlines
9h 57mONT-BUF
3/28Thu
multi-stopUnited Airlines
18h 01mBUF-ONT
$885
3/24Sun
multi-stopJetBlue
9h 06mONT-BUF
3/26Tue
multi-stopJetBlue
12h 07mBUF-ONT
$918
3/23Sat
multi-stopJetBlue
9h 07mONT-BUF
3/28Thu
multi-stopJetBlue
9h 23mBUF-ONT
$1,071
3/24Sun
multi-stopAlaska Airlines
13h 31mONT-BUF
3/26Tue
multi-stopAlaska Airlines
14h 12mBUF-ONT
$2,126

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Ontario - Buffalo Flights

Departure:

Ontario (ONT)United States

Destination:

Buffalo (BUF)United States

Return flight deals:

Buffalo - Ontario

Cabin classes: