JFK - ONT

$97 Find Cheap Flights from New York John F Kennedy Airport 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 John F Kennedy Intl to Ontario departing on 5/13. 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.
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KAYAK searches 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 New York 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 New York to Ontario, as well as popular online travel agencies
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Cheap Flights from John F Kennedy Intl to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from John F Kennedy Intl to Ontario 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.

Recent round-trip flight deals from John F Kennedy Intl to Ontario

KAYAK's recommended round-trip deals from the most popular airlines that fly from John F Kennedy Intl to Ontario.
Discover the best prices for you by selecting your travel dates on KAYAK.
Frontier Logo
6:59 am - 12:08 pmJFK-ONT
8h 09m1 stop
Frontier Logo
7:37 pm - 5:30 amONT-JFK
6h 53m1 stop
$195Frontier
Find Deal
Wed, May 21 - Wed, May 28
Frontier Logo
6:59 am - 12:08 pmJFK-ONT
8h 09m1 stop
Frontier Logo
7:37 pm - 5:30 amONT-JFK
6h 53m1 stop
$196Frontier
Find Deal
Wed, May 21 - Wed, May 28
JetBlue Logo
6:35 pm - 9:41 pmJFK-ONT
6h 06mnonstop
JetBlue Logo
11:00 pm - 7:23 amONT-JFK
5h 23mnonstop
$257JetBlue
Find Deal
Tue, Sep 16 - Tue, Sep 23
Alaska Airlines Logo
7:29 am - 2:09 pmJFK-ONT
9h 40m1 stop
Alaska Airlines Logo
7:22 pm - 7:06 amONT-JFK
8h 44m1 stop
$269Alaska Airlines
Find Deal
Tue, Sep 16 - Mon, Sep 22
JetBlue Logo
6:35 pm - 9:41 pmJFK-ONT
6h 06mnonstop
JetBlue Logo
11:00 pm - 7:23 amONT-JFK
5h 23mnonstop
$272JetBlue
Find Deal
Tue, Sep 16 - Sun, Sep 21
Alaska Airlines Logo
7:29 am - 3:50 pmJFK-ONT
11h 21m1 stop
Alaska Airlines Logo
4:45 pm - 6:09 amONT-JFK
10h 24m1 stop
$277Alaska Airlines
Find Deal
Thu, May 29 - Tue, Jun 3
American Airlines Logo
2:32 pm - 9:40 pmJFK-ONT
10h 08m2 stops
American Airlines Logo
11:59 pm - 11:45 amONT-JFK
8h 46m1 stop
$282American Airlines
Find Deal
Sat, Oct 4 - Tue, Oct 14
American Airlines Logo
5:29 pm - 9:38 pmJFK-ONT
7h 09m1 stop
American Airlines Logo
10:28 pm - 10:05 amONT-JFK
8h 37m1 stop
$324American Airlines
Find Deal
Thu, Jul 3 - Tue, Jul 8
Delta Logo
6:00 am - 10:38 amJFK-ONT
7h 38m1 stop
Delta Logo
5:50 pm - 7:20 amONT-JFK
10h 30m1 stop
$333Delta
Find Deal
Tue, Jun 10 - Fri, Jun 20
Delta Logo
7:05 am - 2:25 pmJFK-ONT
10h 20m1 stop
Delta Logo
7:05 am - 7:30 pmONT-JFK
9h 25m1 stop
$342Delta
Find Deal
Sat, Jun 14 - Sat, Jun 21
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KAYAK's insights & trends for John F Kennedy Intl to Ontario flights

Get data-powered insights and trends into flights from John F Kennedy Intl 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 New York John F Kennedy Airport to Ontario?

The average price of all round-trip flights from New York John F Kennedy Intl Airport to Ontario clicked on KAYAK for each day over the last 12 months.

When flying from New York John F Kennedy Airport to Ontario, you should consider leaving on a Saturday and avoid Sundays if you are looking for the best rates. For your return to New York John F Kennedy Airport, you’ll find the best rates on Mondays and the most expensive ones on Thursdays.

What is the cheapest month to fly from New York John F Kennedy Intl Airport to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from New York John F Kennedy Intl Airport 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 New York John F Kennedy Intl Airport to Ontario is March, where tickets cost $220 (return) on average. On the other hand, the most expensive months are February and December, where the average cost of round-trip tickets is $535 and $520 respectively.

How far in advance should I book a flight from New York John F Kennedy Intl Airport to Ontario?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from New York John F Kennedy Intl Airport to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from New York John F Kennedy Intl Airport to Ontario, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonFebruary
High seasonMay
Cheapest flight$97
Best time to beat the crowds but there is an average 43% increase in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from New York John F Kennedy Airport to Ontario

When to book flights from John F Kennedy Intl to Ontario

Are your dates flexible? Find out the best times to travel from John F Kennedy Intl 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 New York John F Kennedy Airport to Ontario flights

  • What is the cheapest flight from New York John F Kennedy Intl Airport to Ontario?

    In the last 3 days, the lowest price for a flight from New York John F Kennedy Intl Airport to Ontario was $97 for a one-way ticket and $195 for a round-trip.

  • Do I need a passport to fly between New York John F Kennedy Airport and Ontario?

    No

  • Which airlines offer Wi-Fi service onboard planes from New York John F Kennedy Airport to Ontario?

    JetBlue, Delta, Alaska Airlines, and American Airlines offer inflight Wi-Fi service on the New York John F Kennedy Airport to Ontario flight route.

  • Which aircraft models fly most regularly from New York John F Kennedy Airport to Ontario?

    The Airbus A321neo is the aircraft model that flies most regularly on the New York John F Kennedy Airport to Ontario flight route.

  • On which days can I fly direct from New York John F Kennedy Airport to Ontario?

    There are nonstop flights from New York John F Kennedy Airport to Ontario on a daily basis.

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

    The two airlines most popular with KAYAK users for flights from New York to Ontario are Delta and JetBlue. With an average price for the route of $418 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 $396 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from New York John F Kennedy Airport 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 New York John F Kennedy Airport to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from New York John F Kennedy Airport to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from New York John F Kennedy Airport 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 New York John F Kennedy Airport 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 New York John F Kennedy Airport with another airline. Booking your flights between New York John F Kennedy Airport 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 New York John F Kennedy Airport 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 New York John F Kennedy Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from New York John F Kennedy Intl Airport to Ontario

  • Looking for a cheap flight? 25% of our users found flights on this route for $138 or less one-way and $300 or less round-trip.

Prefer to fly direct from New York John F Kennedy Airport to Ontario?

Find which airlines fly direct from New York John F Kennedy Intl Airport to Ontario Airport, which days they fly and book direct flights.

Direct departures

New York John F Kennedy Intl to Ontario

Monday

Air Serbia, Etihad Airways, Hawaiian Airlines, +1 more

Air Serbia, Etihad Airways, +2 more

Tuesday

Air Serbia, Etihad Airways, Hawaiian Airlines, +1 more

Air Serbia, Etihad Airways, +2 more

Wednesday

Air Serbia, Etihad Airways, Hawaiian Airlines, +1 more

Air Serbia, Etihad Airways, +2 more

Thursday

Etihad Airways, Hawaiian Airlines, JetBlue

Etihad Airways, Hawaiian Airlines, +1 more

Friday

Etihad Airways, Hawaiian Airlines, JetBlue

Etihad Airways, Hawaiian Airlines, +1 more

Saturday

Etihad Airways, Hawaiian Airlines, JetBlue

Etihad Airways, Hawaiian Airlines, +1 more

Sunday

Etihad Airways, Hawaiian Airlines, JetBlue

Etihad Airways, Hawaiian Airlines, +1 more

See more direct flights

Direct returns

Ontario to New York John F Kennedy Intl

Monday

Air Serbia, Etihad Airways, JetBlue

Air Serbia, Etihad Airways, +1 more

Tuesday

Air Serbia, Etihad Airways, JetBlue

Air Serbia, Etihad Airways, +1 more

Wednesday

Etihad Airways, JetBlue

Etihad Airways, JetBlue

Thursday

Etihad Airways, JetBlue

Etihad Airways, JetBlue

Friday

Etihad Airways, JetBlue

Etihad Airways, JetBlue

Saturday

Etihad Airways, JetBlue

Etihad Airways, JetBlue

Sunday

Air Serbia, Etihad Airways, JetBlue

Air Serbia, Etihad Airways, +1 more

See more direct flights
See more direct flights

Top 4 airlines serving from John F Kennedy Intl to Ontario

 
See real verified KAYAK customer reviews for airlines flying from New York 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 John F Kennedy Intl 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 7934 reviews
7.3Food
8.2Boarding
8.5Crew
7.9Entertainment
7.9Comfort
Airline reviews

Our bag was lost so that made unnecessary chaos On our trip

6.0 GoodBarbara, Apr 2025JFK - FCO
Read more Delta reviews

Our bag was lost so that made unnecessary chaos On our trip

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

Although the flight left late, we arrived early. It was one of the quickest boarding and off boarding experiences I’ve had. It was kind of annoying the only drinks they had were water, coffee, and tea. The flight was very smooth, temperature was just right, and flight attendants were friendly.

Seats were really tight and the seat belts did not give enough slack.

The dear was very limited in space. I could put my water bottle in seat basket. Also, there was no inflight entertainment in the delta app?

Customer service at the gate in the flight was exceptional. On time. Aircraft and seat was decent. Thanks Delta. 💗

The WiFi has been awful on my last few Delta Air Lines flights.

Only one side of the heafphone jack work. Crew was friendly and helpful.

Typical flying experience in the US. Nothing particularly good or bad.

I was able to select a gluten free meal for my outbound flight operated by KLM but my selection wasn’t saved on Delta so I ended up not having a hot meal. The cabin crew was nice enough to offer some cheese so I could pair it with some gf crackers I had. The seat would recline but slowly but surely would come back up so I couldn’t sleep as I would have wanted to.

Excellent. Although they used to greet me as a mosaic member and provide a free drink, early boarding helps me to keep coming back to JetBlue.

No music app working: no economy meal on five hour flight; hour on tarmac at the end waiting for a gate. Flight itself was smooth and easy.

Communication with the customer and stay is important. Staff off with a minor inconvenience but it worked out of course. Also this was a very old Mint Class plane. They snuck this one in on us. The updated aircraft are much better.

The flight itself was fine, but the boarding process was extremely frustrating. There is no one scanning boarding passes - passengers just scan themselves and enter the jetway. By the time my husband and I got on the plane and were halfway to our seats they determined there were too many bags on the plane and everything at that point needed to be checked. This created a lot of unnecessary chaos. They should have alerted people before getting on the plane that they would need to start checking bags instead of waiting until people were already on the plane.

In flight on demand didn't work at our seats. Only a single beverage/snack run.

Traveling with JetBlue from NYC was convenient as accessing JFK airport was straightforward via the LIRR to the AirTrain. Maneuvering through the terminal was hassle-free, which was a pleasant start to the journey. However, the flight experience itself left much to be desired. The seating arrangement was notably uncomfortable; despite securing a window seat, space felt cramped. This was exacerbated by the middle seat passenger encroaching on my area, which made the flight less enjoyable. Additionally, while the in-flight entertainment system initially seemed like a reprieve, the sound outlet on my seat was inoperable. This issue turned what could have been a manageable three-hour flight into a rather tedious ordeal, as I was unable to use the entertainment system effectively. While JetBlue provided a smooth process in terms of airport logistics, the on-board experience highlighted areas in need of improvement, particularly in terms of comfort and entertainment system maintenance.

Over 2 hour delay for a 50-minute flight is unacceptable, especially in normal weather. Very poor communication via app

Kayak sent over to jet blue my account being Mike Callaghan instead of Michael. I have a jet blue account with Michael that was connected

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

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 five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

Delays on all NY flights. There was no communication on why but they didn’t say it was weather. Other carriers were not delayed.

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

They cancelled our flight without warning OR a refund. Never doing business with American Airlines again! This is the second AA booked trip in a row that we've had challenges with.

I got bumped due to weight restrictions even tho there were empty seats on my flight. I got put on an other flight with a stopover. My flight that originally was going to take 5-6 hours ever up being 14+ hours and my luggage arrived to my destination without me because I was made to check in my luggage on my original flight when I was deemed ok to board only to be asked to deplane. Worst flight experience.

Flight cancelled. Added a day and a half to my travel. American Airlines DID put me in a hotel for two nights, but have not given any money back for any of this! I spent money on an apartment at my destination that I basically wasted because I could not arrive.

I was pleasantly surprised with an upgrade at boarding. I finally had a mostly gluten free food options and a very attentive attendant.

Staff at the gate were incredibly rude, hostile and threatening. Never fly American Airlines.

AA had a nationwide tech glitch today and after two connections snd hours of delay, I arrived 7 hours late to my destination

The plane was very warm and the crew turned on the lights for the entire snack service.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

Everything went as planned. Crew was great. Seats were still not that comfortable.

Since they are a budget airline, I wasn’t expecting too much but they did some things well. They were on time, the plane was clean, boarding was fairly straightforward and the staff was cheerful and friendly. The only downside was comfort. The seats were fairly hard and after a 2 hour flight your rear end is not feeling so great. Maybe a little more cushion in the seats, Frontier!

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

The flight left over two hours late. They charged me $180 to bring a carry on. There was an error with the spelling of my name and Frontair agent lied that I would need to pay $200 for her to fix the spelling, and pressured me that if I don't do it quick I would lose the flight. I called back and another agent said it costs $75 to fix. All in all, this company is a complete scam.

I took my first and last flight with FRONTIER. The seats are not able to be reclined so it’s not a very comfortable experience when you take a flight of 3 hours or longer. You must pay for your luggage either carry on or check in, so taking all this in consideration at the end what you think you’re saving your paying in services that should be included. Not a beverage in sight. . You’re seriously better off getting on a proper airline such as Delta, AA, United, etc.

The plane was clean, the crew was friendly and helpful. It’s a low cost airline so there was no food, drinks or in flight entertainment but we didn’t expect any of these things. In the room for improvement department, they should install USB ports in seats to charge mobile devices.

I was surprised that all baggage, including carry on, were charged. Each additional bag went up in cost. Really disappointed in the additional costs.

Charges unexpected. For seat that didnt recline. Please reverse extra seat and carryon charge. Bad business that is a bait and switch.

I couldn’t check in because the app didn’t work. It took 3 Frontier employees at the counter to get me checked in. Flight left 3 hours after departure time

Everything you need to know for your flight from John F Kennedy Intl to Ontario

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