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BUF - ONT

$90 Find cheap flights from Buffalo to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Buffalo to Ontario departing on 6/5. 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
Sat 6/15
Sat 6/22

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to Ontario, 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 Buffalo to Ontario, as well as popular online travel agencies
In the last 7 days travelers have searched 42,211,976 times on KAYAK, and here is why:

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Cheap flight deals from Buffalo to Ontario (BUF-ONT)

 
These are the cheapest deals for flights from Buffalo to Ontario currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Buffalo to Ontario

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Buffalo to Ontario.

Recent one-way flight deals from Buffalo to Ontario

Only flying one-way? Below are some of the best one-way flight deals from Buffalo to Ontario found on KAYAK recently.

Recent last minute flight deals from Buffalo to Ontario

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Buffalo to Ontario.

Recent direct flight deals from Buffalo to Ontario

The latest deals for direct flights from Buffalo to Ontario so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Buffalo to Ontario

Find recent round-trip train or bus tickets from Buffalo to Ontario.

All round-trip flight deals to Ontario

The cheapest plane tickets to Ontario found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:52 pm - 11:49 pmBUF-ONT
7h 57m1 stop
12:59 am - 5:52 pmONT-BUF
13h 53m1 stop
$189Frontier
Find Deal
Wed, Jun 5 - Tue, Jun 11
6:52 pm - 11:49 pmBUF-ONT
7h 57m1 stop
10:23 pm - 9:52 pmONT-BUF
20h 29m1 stop
$206Frontier
Find Deal
Wed, Jun 5 - Fri, Jun 14
5:40 pm - 10:03 pmBUF-ONT
7h 23m1 stop
11:59 pm - 1:06 pmONT-BUF
10h 07m2 stops
$250American Airlines
Find Deal
Sat, Aug 24 - Tue, Aug 27
10:15 am - 6:24 pmBUF-ONT
11h 09m2 stops
11:59 pm - 1:06 pmONT-BUF
10h 07m2 stops
$253American Airlines
Find Deal
Sat, Aug 24 - Tue, Aug 27
4:00 pm - 10:21 pmBUF-ONT
9h 21m1 stop
11:36 pm - 11:59 amONT-BUF
9h 23m1 stop
$275JetBlue
Find Deal
Thu, Sep 5 - Mon, Sep 9
6:00 am - 10:10 amBUF-ONT
7h 10m1 stop
11:20 am - 12:20 amONT-BUF
10h 00m2 stops
$362Delta
Find Deal
Thu, Jul 18 - Tue, Jul 23
5:00 pm - 10:38 pmBUF-ONT
8h 38m1 stop
11:59 pm - 10:30 amONT-BUF
7h 31m1 stop
$370JetBlue
Find Deal
Thu, Jun 13 - Sun, Jun 16
6:00 am - 10:10 amBUF-ONT
7h 10m1 stop
11:20 am - 11:55 pmONT-BUF
9h 35m1 stop
$388Delta
Find Deal
Thu, Jul 18 - Tue, Jul 23
7:00 am - 5:56 pmBUF-ONT
13h 56m2 stops
6:25 pm - 9:37 amONT-BUF
12h 12m2 stops
$412United Airlines
Find Deal
Tue, Aug 27 - Wed, Aug 28
10:28 am - 9:11 pmBUF-ONT
13h 43m2 stops
6:00 am - 11:32 pmONT-BUF
14h 32m2 stops
$421United Airlines
Find Deal
Thu, Aug 15 - Wed, Aug 21
6:52 pm - 11:49 pmBUF-ONT
7h 57m1 stop
$90Frontier
Find Deal
Wed, Jun 5
6:15 pm - 11:40 pmBUF-ONT
8h 25m1 stop
$109Frontier
Find Deal
Fri, Jun 21
5:51 pm - 10:00 pmBUF-ONT
7h 09m1 stop
$122American Airlines
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Tue, Sep 17
5:51 pm - 11:26 pmBUF-ONT
8h 35m2 stops
$127American Airlines
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Tue, Sep 17
3:25 pm - 10:12 pmBUF-ONT
9h 47m1 stop
$148Delta
Find Deal
Thu, Aug 22
10:53 am - 9:31 pmBUF-ONT
13h 38m2 stops
$178United Airlines
Find Deal
Sat, Sep 14
3:35 pm - 10:09 pmBUF-ONT
9h 34m1 stop
$199JetBlue
Find Deal
Thu, May 30
7:00 am - 5:28 pmBUF-ONT
13h 28m2 stops
$207United Airlines
Find Deal
Wed, Jul 10
3:35 pm - 10:09 pmBUF-ONT
9h 34m1 stop
$246JetBlue
Find Deal
Tue, Jun 11
6:00 am - 10:10 amBUF-ONT
7h 10m1 stop
$364Delta
Find Deal
Sun, Jul 21
7:07 pm - 11:59 pmBUF-ONT
7h 52m1 stop
12:59 am - 4:25 pmONT-BUF
12h 26m1 stop
$378Frontier
Find Deal
Sat, May 18 - Sun, May 19
7:07 pm - 11:59 pmBUF-ONT
7h 52m1 stop
2:04 pm - 4:25 pmONT-BUF
23h 21m1 stop
$385Frontier
Find Deal
Sat, May 18 - Sun, May 19
6:00 am - 11:40 amBUF-ONT
8h 40m1 stop
12:50 pm - 11:59 pmONT-BUF
8h 09m1 stop
$761Delta
Find Deal
Sat, May 18 - Tue, May 21
6:00 am - 11:40 amBUF-ONT
8h 40m1 stop
12:50 pm - 11:59 pmONT-BUF
8h 09m1 stop
$782Delta
Find Deal
Sat, May 18 - Tue, May 21
6:15 am - 12:40 pmBUF-ONT
9h 25m2 stops
6:00 am - 10:13 amONT-BUF
25h 13m2 stops
$793United Airlines
Find Deal
Sat, May 18 - Tue, May 21
11:06 am - 8:53 pmBUF-ONT
12h 47m2 stops
1:36 pm - 10:13 amONT-BUF
17h 37m2 stops
$798United Airlines
Find Deal
Sat, May 18 - Tue, May 21
3:35 pm - 10:09 pmBUF-ONT
9h 34m1 stop
11:40 pm - 10:42 amONT-BUF
8h 02m1 stop
$828JetBlue
Find Deal
Tue, May 21 - Thu, May 23
11:32 am - 6:48 pmBUF-ONT
10h 16m2 stops
10:29 pm - 9:47 amONT-BUF
8h 18m1 stop
$922American Airlines
Find Deal
Sat, May 18 - Tue, May 21
3:35 pm - 10:09 pmBUF-ONT
9h 34m1 stop
11:40 pm - 10:42 amONT-BUF
8h 02m1 stop
$1,101JetBlue
Find Deal
Sat, May 18 - Mon, May 20
6:35 am - 11:52 amBUF-ONT
8h 17m1 stop
12:50 pm - 10:23 pmONT-BUF
6h 33m1 stop
$1,307American Airlines
Find Deal
Tue, May 21 - Fri, May 24

Flights from Buffalo to Ontario - Travel Insights & Trends

Get data-powered insights and trends into flights from Buffalo to Ontario 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 Buffalo to Ontario?

The average price of all flights from Buffalo to Ontario clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Buffalo to Ontario, look for departures on Mondays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Ontario, Sunday is the cheapest day to fly and Friday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Buffalo to Ontario, 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 Buffalo to Ontario is April, where tickets cost $304 on average. On the other hand, the most expensive months are August and December, where the average cost of tickets is $538 and $474 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Buffalo to Ontario, 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 Buffalo to Ontario, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 49 days before departure.

Which airlines provide the cheapest flights from Buffalo to Ontario?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Buffalo to Ontario were found on Frontier ($189) and American Airlines ($250). Frontier proposed the cheapest one-way flight at $90.

Good to know

Low season

February

High season

June

Cheapest flight

$90
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly with an average 3% increase in price.
Flight from Buffalo to Ontario

When to book flights from Buffalo to Ontario

Are your dates flexible? Find out the best times to travel from Buffalo to Ontario 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 Buffalo to Ontario

  • What is the cheapest flight from Buffalo to Ontario?

    In the last 3 days, the lowest price for a flight from Buffalo to Ontario was $90 for a one-way ticket and $189 for a round-trip.

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

    A passport is not required to fly from Buffalo to Ontario.

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

    When flying out of Buffalo you will be using Buffalo. You will be landing at Ontario, also known as Ontario.

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

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

  • Which airline alliances offer flights from Buffalo to Ontario?

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

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

    The two airlines most popular with KAYAK users for flights from Buffalo to Ontario are Delta and JetBlue. With an average price for the route of $346 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 $394 and an overall rating of 7.6.

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

    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 Buffalo to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Buffalo 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 Buffalo to Ontario?

    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 Ontario with an airline and back to Buffalo with another airline. Booking your flights between Buffalo and ONT 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 Buffalo to Ontario?

    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 Ontario from Buffalo 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 Buffalo to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Buffalo to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Buffalo to Ontario? 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 verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10673 reviews
7.4Food
8.6Crew
7.9Comfort
8.0Entertainment
8.2Boarding
Airline reviews

There was a loud squeaky sound the whole time we were flying.

6.0 GoodEliza, Apr 2024SAN - LAX
Read more about Delta reviews

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

I didn’t like that I could not select my seat and was assigned a seat when I checked in at LAX

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Crew was not friendly when I went to request a seat change.

Really impressive staff at airport and on plane, especially given how busy it was

Was a great smooth flight from Detroit to San Diego.

There were multiple delays but JetBlue tried to make the boarding and departure process as quick and efficient as possible. The crew was as detached from reality as could be, meaning: not very friendly and just doing things by the numbers.

40 minute delay before take off after boarding flight. Bright lights throughout night flight due Issues with light panels. In flight Entertainment nonfunctional

Another horrible Jet Blue experience. This airline has suffered the biggest decline of all from best to worst. TVs didn’t work (again). internet was temperamental. Boarded late and couldn’t get organized to serve snacks.

I hate their constant delays! It’s as if I cannot confidently make plans for timing when I'm traveling with them. I slept through it, so all I can say is it was good.

There was no wheelchair or wheelchair escort at the gate..unacceptable

Service for food to our seat was a bit slow. Snack choices were just pretzels or baked chips. My seat cushion was not attached. Other than Barbie, video choice were not very good or current.

It took an hour to get my bag after landing. Not exaggerating

I had a horrible experience with TSA at the airport. I had to go through TSA several times as there was some issue each time with a piece if clothing I had on. It was so busy & chaotic that I ended up forgetting my Apple laptop at TSA. It’s been days & I can’t get through to anyone to get useful info on how to get it back. I’m very angry because contacting lost & found shouldn’t be this difficult. Employees should know what is going on at their place of work. It seems no one knows as everyone’s answers are contradictory, or you can’t speak directly to anyone as the calls are automated. Very upsetting.

Everything was good instead change the gates! I missed my first flight because it was changed the gate and I didn’t know!

My experience with Eva sir was good except the long walk in LA Lex, that was inconvenient for my age,

Fight crew was not very attentive and the bastions were gross!

Our flight was great we left Kona earlier and got into LAX almost an 1hour earlier as well. LAX AA is in repair so to get out and found our bus to get pick up was a bit confusing.

Plane was good but was delayed. probably not AA fault but caused a 1 hour delay. Seating was cramped.

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

I can say I will not be taking this airline again any time soon. Seat were uncomfortable and too tight. Lack of chair screen and little overhead space.

Plane felt so crowded and tightly packed. The chair itself was not comfortable.

They attended to my needs as I couldn't walk and they provided a wheelchair for me.q

Poor availability of food. Cold cabin temperature. Extremely long waiting time for a flight attendant to respond to a call button signal.

2.5h delay due to unruly passenger in first class. Had to be removed from the flight. No food unless pre ordered. Didn't know we would need it because of delay.

Flight was a little late taking off. Seats are too upright, no ports to charge devices, no wifi, no entertainment

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

The boarding time. I was in Section 1 the lady in charge just let people in section 3 without see us. Make a line , I have to step out and ask her. We were in the line and she just take my ticket and that’s it, so if I don’t ask her she could leave us at the end! We paid more for that privilege and. She doesn’t care….

See my previous comment which is mostly about our flight from Phoenix to SFO

The check in at the airport was awful. Told I need to pay for a bag. The item was taken at screening. I went back to get my $ back and they gave me a coupon with a QR code that doesn’t work. Worst costumer service ever!!!!!

4 hour delay because they used our aircraft to fly a different segment (per the captain)

Lost baggage on my connecting flight. 24 hours later, still no update on my bags.

I had to cancel within 1hour of the reservation an they put you through hell to . no live customer service desk. I'm handy caped and they make it almost impossible to cancel. They are steeling my money. You should not have that airline on your site. Contact me and I will give you all info. Of what the are doing to me just notable treatment they are set up like that to take people

Be prepared for crowds and chaos upon arrival at the Orlando airport

Book cheap flights from Buffalo to Ontario

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Buffalo to Ontario found on KAYAK in the last 72 hours.
6/5Wed
1 stopFrontier
7h 57mBUF-ONT
$90
6/21Fri
1 stopFrontier
8h 25mBUF-ONT
$109
9/17Tue
1 stopAmerican Airlines
7h 09mBUF-ONT
$122
9/17Tue
2 stopsAmerican Airlines
8h 35mBUF-ONT
$127
8/22Thu
1 stopDelta
9h 47mBUF-ONT
$148
9/14Sat
2 stopsUnited Airlines
13h 38mBUF-ONT
$178
5/30Thu
1 stopJetBlue
9h 34mBUF-ONT
$199
7/10Wed
2 stopsUnited Airlines
13h 28mBUF-ONT
$207
6/11Tue
1 stopJetBlue
9h 34mBUF-ONT
$246
7/21Sun
1 stopDelta
7h 10mBUF-ONT
$364

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Last minute flights from Buffalo to Ontario

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 Buffalo to Ontario that are departing in the next 10 days.
5/18Sat
multi-stopFrontier
7h 52mBUF-ONT
5/19Sun
multi-stopFrontier
12h 26mONT-BUF
$378
5/18Sat
multi-stopFrontier
7h 52mBUF-ONT
5/19Sun
multi-stopFrontier
23h 21mONT-BUF
$385
5/18Sat
multi-stopDelta
8h 40mBUF-ONT
5/21Tue
multi-stopDelta
8h 09mONT-BUF
$761
5/18Sat
multi-stopDelta
8h 40mBUF-ONT
5/21Tue
multi-stopDelta
8h 09mONT-BUF
$782
5/18Sat
multi-stopUnited Airlines
9h 25mBUF-ONT
5/21Tue
multi-stopUnited Airlines
25h 13mONT-BUF
$793
5/18Sat
multi-stopUnited Airlines
12h 47mBUF-ONT
5/21Tue
multi-stopUnited Airlines
17h 37mONT-BUF
$798
5/21Tue
multi-stopJetBlue
9h 34mBUF-ONT
5/23Thu
multi-stopJetBlue
8h 02mONT-BUF
$828
5/18Sat
multi-stopAmerican Airlines
10h 16mBUF-ONT
5/21Tue
multi-stopAmerican Airlines
8h 18mONT-BUF
$922
5/18Sat
multi-stopJetBlue
9h 34mBUF-ONT
5/20Mon
multi-stopJetBlue
8h 02mONT-BUF
$1,101
5/21Tue
multi-stopAmerican Airlines
8h 17mBUF-ONT
5/24Fri
multi-stopAmerican Airlines
6h 33mONT-BUF
$1,307

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Buffalo - Ontario Flights

Departure:

Buffalo (undefined)United States

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Buffalo

Cabin classes: