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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 6/29
Sat 7/6

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 42,686,544 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
6:46 pm - 11:44 pmBUF-ONT
7h 58m1 stop
1:32 pm - 5:46 pmONT-BUF
25h 14m1 stop
$229Frontier
Find Deal
Sat, Sep 28 - Tue, Oct 8
5:52 pm - 11:59 pmBUF-ONT
9h 07m1 stop
12:59 am - 4:50 pmONT-BUF
12h 51m1 stop
$230Frontier
Find Deal
Mon, Jun 10 - Sun, Jun 16
5:15 am - 11:53 amBUF-ONT
9h 38m2 stops
11:59 pm - 1:06 pmONT-BUF
10h 07m1 stop
$240American Airlines
Find Deal
Sat, Aug 24 - Tue, Aug 27
6:38 am - 11:47 amBUF-ONT
8h 09m1 stop
6:40 am - 10:35 pmONT-BUF
12h 55m2 stops
$241American Airlines
Find Deal
Sat, Aug 24 - Tue, Aug 27
5:00 pm - 10:38 pmBUF-ONT
8h 38m1 stop
11:59 pm - 10:30 amONT-BUF
7h 31m1 stop
$350JetBlue
Find Deal
Thu, Jun 20 - Mon, Jun 24
10:53 am - 5:22 pmBUF-ONT
9h 29m2 stops
6:45 pm - 10:06 amONT-BUF
12h 21m2 stops
$386United Airlines
Find Deal
Fri, Aug 23 - Mon, Aug 26
4:35 pm - 9:10 pmBUF-ONT
7h 35m1 stop
10:59 pm - 11:13 amONT-BUF
9h 14m1 stop
$406Delta
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Sat, Nov 9 - Sun, Nov 17
10:53 am - 9:31 pmBUF-ONT
13h 38m2 stops
6:00 am - 8:50 pmONT-BUF
11h 50m2 stops
$407United Airlines
Find Deal
Sat, Aug 31 - Sat, Sep 21
6:00 am - 10:20 amBUF-ONT
7h 20m1 stop
7:05 am - 6:16 pmONT-BUF
8h 11m1 stop
$427Delta
Find Deal
Thu, Jun 20 - Sun, Jun 23
5:00 pm - 10:38 pmBUF-ONT
8h 38m1 stop
11:59 pm - 10:30 amONT-BUF
7h 31m1 stop
$445JetBlue
Find Deal
Thu, Jun 20 - Mon, Jul 1
6:52 pm - 11:49 pmBUF-ONT
7h 57m1 stop
$90Frontier
Find Deal
Wed, Jun 5
6:52 pm - 11:49 pmBUF-ONT
7h 57m1 stop
$94Frontier
Find Deal
Wed, Jun 5
5:40 pm - 10:27 pmBUF-ONT
7h 47m1 stop
$118American Airlines
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Tue, Aug 13
5:15 am - 1:45 pmBUF-ONT
11h 30m2 stops
$123American Airlines
Find Deal
Wed, Aug 14
5:00 pm - 10:38 pmBUF-ONT
8h 38m1 stop
$151JetBlue
Find Deal
Thu, Jul 18
12:14 pm - 11:00 pmBUF-ONT
13h 46m2 stops
$157Delta
Find Deal
Sat, Jun 8
10:05 am - 9:11 pmBUF-ONT
14h 06m2 stops
$171United Airlines
Find Deal
Thu, Aug 15
7:00 am - 5:22 pmBUF-ONT
13h 22m2 stops
$173United Airlines
Find Deal
Wed, Aug 28
6:15 am - 12:17 pmBUF-ONT
9h 02m2 stops
$192Delta
Find Deal
Tue, Jun 11
5:00 pm - 10:32 pmBUF-ONT
8h 32m1 stop
$199JetBlue
Find Deal
Thu, Aug 22
5:25 pm - 1:24 pmBUF-ONT
22h 59m1 stop
12:59 am - 5:52 pmONT-BUF
13h 53m1 stop
$250Frontier
Find Deal
Mon, Jun 3 - Tue, Jun 11
5:25 pm - 11:59 pmBUF-ONT
9h 34m1 stop
8:03 am - 5:52 pmONT-BUF
6h 49m1 stop
$307Frontier
Find Deal
Mon, Jun 3 - Wed, Jun 12
5:25 pm - 1:24 pmBUF-ONT
22h 59m1 stop
11:59 am - 5:25 pmONT-BUF
26h 26m1 stop
$312Frontier
Find Deal
Mon, Jun 3 - Thu, Jun 6
7:07 pm - 11:59 pmBUF-ONT
7h 52m1 stop
8:29 am - 6:02 pmONT-BUF
6h 33m1 stop
$446Frontier
Find Deal
Fri, May 31 - Sat, Jun 1
11:32 am - 9:55 pmBUF-ONT
13h 23m2 stops
6:00 am - 11:03 pmONT-BUF
14h 03m2 stops
$779Alaska Airlines
Find Deal
Mon, Jun 3 - Wed, Jun 12
5:35 am - 3:26 pmBUF-ONT
12h 51m2 stops
4:20 pm - 10:55 amONT-BUF
15h 35m2 stops
$1,007Alaska Airlines
Find Deal
Fri, May 31 - Sat, Jun 1
5:35 am - 3:26 pmBUF-ONT
12h 51m2 stops
6:00 am - 11:03 pmONT-BUF
14h 03m2 stops
$1,238Alaska Airlines
Find Deal
Mon, Jun 3 - Thu, Jun 6
6:35 am - 11:52 amBUF-ONT
8h 17m1 stop
10:45 pm - 9:23 amONT-BUF
7h 38m1 stop
$1,853American Airlines
Find Deal
Sun, Jun 2 - Sat, Jun 8

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 Tuesdays 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 Saturday 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 June, where the average cost of tickets is $538 and $476 respectively.

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 ($229) and American Airlines ($240). 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 11% increase in price.
Most popular time to fly with an average 16% 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 $229 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 $446 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 10457 reviews
7.9Comfort
8.2Boarding
7.4Food
8.6Crew
8.0Entertainment
Airline reviews

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

8.0 ExcellentLiam, May 2024SLC - SJC
Read more about Delta reviews

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

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

The flight was excellent. The crew was welcoming and attentive.

Run out of snack choices. Why are the seats not padded for your butt? Are we sitting on blocks of wood or metal for $250-300 a pop? This ain’t spirit. Let’s get it together people

Going through JFK’s security is a mess. The TSA security said no shoes on the bins. So, we place our shoes in the belt and they came out all over the belt. Boarding was delayed and Flight as well.

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

There were delays on both ends. It made it less than excellent. This plane was great though

Everything was great except for the wifi was junk. Crew was super friendly and helpful

Attendants were rude. Scowling. Seats were miserable and we paid extra.

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.

9hrs delay and didn’t provided anything until after flight landed $75 voucher for fiuture travel no meals or anything.

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

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
6/5Wed
1 stopFrontier
7h 57mBUF-ONT
$94
8/13Tue
1 stopAmerican Airlines
7h 47mBUF-ONT
$118
8/14Wed
2 stopsAmerican Airlines
11h 30mBUF-ONT
$123
7/18Thu
1 stopJetBlue
8h 38mBUF-ONT
$151
6/8Sat
2 stopsDelta
13h 46mBUF-ONT
$157
8/15Thu
2 stopsUnited Airlines
14h 06mBUF-ONT
$171
8/28Wed
2 stopsUnited Airlines
13h 22mBUF-ONT
$173
6/11Tue
2 stopsDelta
9h 02mBUF-ONT
$192
8/22Thu
1 stopJetBlue
8h 32mBUF-ONT
$199

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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.
6/3Mon
multi-stopFrontier
22h 59mBUF-ONT
6/11Tue
multi-stopFrontier
13h 53mONT-BUF
$250
6/3Mon
multi-stopFrontier
9h 34mBUF-ONT
6/12Wed
multi-stopFrontier
6h 49mONT-BUF
$307
6/3Mon
multi-stopFrontier
22h 59mBUF-ONT
6/6Thu
multi-stopFrontier
26h 26mONT-BUF
$312
5/31Fri
multi-stopFrontier
7h 52mBUF-ONT
6/1Sat
multi-stopFrontier
6h 33mONT-BUF
$446
6/3Mon
multi-stopAlaska Airlines
13h 23mBUF-ONT
6/12Wed
multi-stopAlaska Airlines
14h 03mONT-BUF
$779
5/31Fri
multi-stopAlaska Airlines
12h 51mBUF-ONT
6/1Sat
multi-stopAlaska Airlines
15h 35mONT-BUF
$1,007
6/3Mon
multi-stopAlaska Airlines
12h 51mBUF-ONT
6/6Thu
multi-stopAlaska Airlines
14h 03mONT-BUF
$1,238
6/2Sun
multi-stopAmerican Airlines
8h 17mBUF-ONT
6/8Sat
multi-stopAmerican Airlines
7h 38mONT-BUF
$1,853

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Buffalo - Ontario Flights

Departure:

Buffalo (BUF)United States

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Buffalo

Cabin classes: