ONT - JFK

$91 Find Cheap Flights from Ontario to New York John F Kennedy Airport

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 John F Kennedy Intl departing on 8/26. 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
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to New York John F Kennedy Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to New York, 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 New York, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Ontario to John F Kennedy Intl (ONT-JFK)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to John F Kennedy Intl 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Sat, Nov 1 - Tue, Nov 4
American Airlines Logo
5:02 pm - 6:00 amONT-JFK
9h 58m1 stop
American Airlines Logo
9:30 am - 2:56 pmJFK-ONT
8h 26m1 stop
$181American Airlines
Find Deal
Mon, Aug 11 - Wed, Aug 20
American Airlines Logo
11:59 pm - 11:52 amONT-JFK
8h 53m1 stop
American Airlines Logo
8:20 am - 4:24 pmJFK-ONT
11h 04m2 stops
$186American Airlines
Find Deal
Mon, Jun 30 - Fri, Jul 4
Frontier Logo
7:36 pm - 5:30 amONT-JFK
6h 54m1 stop
Frontier Logo
1:10 pm - 7:14 pmJFK-ONT
9h 04m1 stop
$198Frontier
Find Deal
Fri, Jul 4 - Wed, Jul 16
Frontier Logo
7:36 pm - 5:30 amONT-JFK
6h 54m1 stop
Frontier Logo
6:59 am - 6:27 pmJFK-ONT
14h 28m1 stop
$200Frontier
Find Deal
Mon, Aug 11 - Wed, Aug 20
JetBlue Logo
11:45 pm - 8:10 amONT-JFK
5h 25mnonstop
JetBlue Logo
7:20 pm - 10:30 pmJFK-ONT
6h 10mnonstop
$233JetBlue
Find Deal
Tue, Jul 29 - Fri, Aug 15
JetBlue Logo
11:59 pm - 8:30 amONT-JFK
5h 31mnonstop
JetBlue Logo
7:20 pm - 10:30 pmJFK-ONT
6h 10mnonstop
$255JetBlue
Find Deal
Tue, Oct 21 - Wed, Oct 29
Alaska Airlines Logo
7:25 pm - 7:20 amONT-JFK
8h 55m1 stop
Alaska Airlines Logo
7:00 am - 3:14 pmJFK-ONT
11h 14m1 stop
$265Alaska Airlines
Find Deal
Tue, Jul 29 - Tue, Aug 12
Delta Logo
10:05 pm - 10:02 amONT-JFK
8h 57m1 stop
Delta Logo
12:29 pm - 7:11 pmJFK-ONT
9h 42m1 stop
$272Delta
Find Deal
Fri, Aug 1 - Tue, Aug 12
Delta Logo
10:05 pm - 10:20 amONT-JFK
9h 15m1 stop
Delta Logo
12:29 pm - 7:11 pmJFK-ONT
9h 42m1 stop
$276Delta
Find Deal
Tue, Sep 30 - Fri, Oct 17
Alaska Airlines Logo
3:04 pm - 7:06 amONT-JFK
13h 02m1 stop
Alaska Airlines Logo
5:29 pm - 11:49 pmJFK-ONT
9h 20m1 stop
$296Alaska Airlines
Find Deal
Expert advice

Expert advice for your flight from Ontario to John F Kennedy Intl

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
ONT

ONT offers streamlined security with average wait times between 6-15 minutes, making it a stress-free departure option.

Read more about ONTby Jennifer Simonson
JFK

Avoid traffic by using the JFK AirTrain from Lefferts Blvd station, which offers free rides between terminals.

Read more about JFKby Harriet Baskas
Our travel experts
Jennifer Simonson

Jennifer Simonson

Expert on ONT

Jennifer Simonson

Jennifer Simonson

Jennifer Simonson is driven by her lifelong commitment to exploring the globe. Her insatiable curiosity had led her to immerse herself into diverse locations like Oklahoma City and Pismo. Her hotel recommendations are the result of the myriad hotels she's stayed at across her travels. Along her journey, she cherishes engaging conversations with locals, indulging in the finest ice cream, trying her hand at surfing, and embarking on nature-filled hikes.

Read more
Harriet Baskas

Harriet Baskas

Expert on JFK

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Useful Info

KAYAK's insights & trends for Ontario to John F Kennedy Intl flights

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

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

If you are looking for a flight deal from Ontario to New York John F Kennedy Airport, look for departures on Mondays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from New York John F Kennedy Airport, Wednesday is the cheapest day to fly and Tuesday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to New York John F Kennedy Intl Airport, 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 New York John F Kennedy Intl Airport is January, where tickets cost $257 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is $451 and $431 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to New York John F Kennedy Intl Airport, 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 Ontario to New York John F Kennedy Intl Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonFebruary
High seasonOctober
Cheapest flight$91
Best time to beat the crowds but there is an average 17% increase in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Ontario to New York John F Kennedy Airport

When to book flights from Ontario to John F Kennedy Intl

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

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

    In the last 3 days, the lowest price for a flight from Ontario to New York John F Kennedy Intl Airport was $91 for a one-way ticket and $181 for a round-trip.

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

    No, a passport isn't needed to fly from Ontario to New York John F Kennedy Airport. However, local authorities might ask for an official ID.

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

    All the following airlines offer inflight Wi-Fi service on the Ontario to New York John F Kennedy Airport flight route: JetBlue, Hawaiian Airlines, Delta, Alaska Airlines, American Airlines, and British Airways.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Ontario to New York are Delta and Alaska Airlines. With an average price for the route of $411 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $395 and an overall rating of 8.0.

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

    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 New York John F Kennedy Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to New York John F Kennedy Airport 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 New York John F Kennedy Airport?

    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 New York John F Kennedy Airport with an airline and back to Ontario with another airline. Booking your flights between Ontario and JFK 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 New York John F Kennedy Airport?

    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 New York John F Kennedy Airport from Ontario 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 Ontario to New York John F Kennedy Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $158 or less one-way and $318 or less round-trip.

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

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Ontario to New York John F Kennedy Intl.
Find which airlines fly direct from Ontario Airport to New York John F Kennedy Intl Airport, which days they fly and book direct flights.

Direct departures

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

Direct returns

New York John F Kennedy Intl to Ontario

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

Air Serbia, Etihad Airways, JetBlue

Air Serbia, Etihad Airways, +1 more

Thursday

Etihad Airways, JetBlue

Etihad Airways, JetBlue

Friday

Etihad Airways, JetBlue

Etihad Airways, JetBlue

Saturday

Etihad Airways, JetBlue

Etihad Airways, JetBlue

Sunday

Etihad Airways, JetBlue

Etihad Airways, JetBlue

See more direct flights

Reviews of the top 5 airlines serving from Ontario to John F Kennedy Intl

 
See real verified KAYAK customer reviews for airlines flying from Ontario to New York. 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 Ontario to John F Kennedy Intl? 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
Alaska AirlinesOverall score based on 10000 reviews
7.1Entertainment
8.1Boarding
7.1Food
7.8Comfort
8.5Crew
Airline reviews

Really good except my daughter's tv broke during the flight so she could watch tv

10.0 ExcellentAnonymous, Jun 2025HNL - JFK
Read more Alaska Airlines reviews

Really good except my daughter's tv broke during the flight so she could watch tv

Major flight delays, it was a 1.5-hour delay. The gate kept changing about 3 times in Seattle. very hectic and chaotic.

We were in 1st Class. Excellent service. Easy boarding. No too difficult to speak with someone on the phone. Breakfast was not eatable for me. No screen to watch movies. I don't have or want a tablet. This is first class there should be screens. Even if I had a tablet there was no place to put it. There is a place to put a tablet in economy. Seats were a bit lumpy.

Great, overall. Thicker seat cushion would be nice. My butt hurt the whole flight.

Thicker seat cushion would be nice. My butt hurt the whole flight.

First time flying with any airline that has decent seating. Great experience crew was friendly and the pilot was as well.

A little delay but nice flight, nice team. Thank you.

They lock the bathrooms too soon before landing! My bladder was bursting for over an hour. Then the plane had to sit on the taxiway for 1 hour. People started rushing to the bathroom. Creating a dangerous situation.

Didn’t like anything. Alaska boarding process takes too long and is poorly managed. Flight crew unorganized and too lax not very professional. I fly very frequently (weekly) and this as the worst overall trip I have ever taken.

I am shocked at how utterly mediocre the First Class experience was on Alaska Airlines- I really expected better. There was a delay with the food delivery, so we sat on the plane for an extra 30 minutes- not once during that time was I, nor anyone else in First Class offered anything at all, not even water. There's no tv or entertainment available? Really? In modern day? And the Wifi was $8 for the connection that actually works, but free for the connection that didn't work at all? What century is this? While friendly, the staff seemed to be much more concerned with their own personal time while working- listening to headphones, on their phones until someone needed them, I'm so disappointed I can't even believe I was able to find these words.

I like for how they process during check in. It was very smoothly.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Boarding was tough as we had to take a bus out to the plane and walk up a lot of stairs. Difficult with heavy carry-ons that said I got an entire empty row of seats, which was excellent for an international flight. Food was very mediocre but happy with the comfort so not complaining.

Subject: Complaint Regarding Disrespectful Behavior by Delta Air Lines Staff at Boarding Gate Dear Delta Air Lines Team, I am writing to formally file a complaint regarding the behavior of a staff member at the boarding gate today, May 14, 2025, at Las Américas International Airport. While we were preparing to board flight DL-1829 to New York, scheduled for 2:28 PM at gate T-11, we were informed that the aircraft was experiencing water system issues and that passengers were advised to use the restroom before boarding. I politely approached one of the Delta staff members to ask whether the lavatory would be partially or completely unavailable during the flight, as I am traveling with a baby in my arms. The employee’s response was extremely rude and arrogant. He replied, in an unnecessarily hostile tone, something along the lines of: “It’s either that or we cancel the flight — do you want us to cancel the flight?” This response lacked any empathy or professionalism. I understand that technical issues can arise, but that does not excuse such inappropriate treatment of passengers. I felt deeply disrespected and disappointed by the interaction. I sincerely hope appropriate measures are taken, and that all staff members receive the necessary training to treat passengers with courtesy, especially in delicate situations like this one.

This is speaking of the original flight leaving on April 30th(DL 1957) not the rebooked the following morning DL 9887. On April 30th, it was unusually crowded at Sangster International Airport (MBJ) the morning my mother and I arrived for our flight. She had to exceedingly long time for a wheelchair, once a wheelchair attendant arrived to take us to thru immigration and security then to go to gate the flight was boarding. We stayed on board for 3 1/2 hrs until the flight crew notified the passengers that flight indefinitely delayed so we had to stay by gate area. Before that my mom had to wait an additional 20-30 mins to deboard the plane. Was given food vouchers, by the time I came back the gate agents said the flight was gonna to reboard, so all the wheelchair passengers lined up. We waited an additional 45 mins, while I received a notification from kayak that the flight was cancelled. And on my delta app updated that flight was being detoured to Miami then from Miami back to JFK. We boarded the plane started to eat, then the flight crew notified us the flight was indeed being detoured & that how come the gate agents didn’t notified the passengers. We stayed on board for another 30-40 mins then was told by the captain that they tried all avenues to get the passengers back to JFK but the crew couldn’t continue the journey and the flight was cancelled. So we deboarded the plane again. Was told that we were going to be setup in hotels for the night. The hotel that we setup to go to wasn’t suitable for my mother’s needs and requested one nearby we were located in Jamaica. So any we had called a taxi to come to take us back where we stayed in Jamaica, that we had to pay out of own pockets.

third trip overseas with delta recently where the TV did not work- not acceptable for a 8 hour flight! your food really has declined crew great and I am loyal to delta

Great staff. Wifi is terrible. Signing up for skylines is a painstaking process. Had to call customer service just to get my flight itinerary and confirmation sent to me. Consistent delays. A well staffed company that is run so poorly. Upper management needs to be renewed.

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

Everything was ok!! Just bags came up a little be late.

Tasty snacks. On-time departure and early arrival. Luggage arrived quickly at the carrousel. The only negative was a man behind us that was heavily inebriated. He was served 3 double drinks during the flight. There was no telling how much he had before the flight. He was so out of it that he spilled a drink and broke the heavy liquor glass on the floor. I don't believe he should have been served so much alcohol on a two-hour flight.

The gate and ground staff were excellent, friendly, went out of their way to acknowledge my Mosaic status. The plane was an older Airbus, so the seats were a little worn. The in flight attendant was not very nice, and seemed to be annoyed to be at work or be on this flight. Flight was fast and we landed early and pilots kept us informed.

The regular feedback of any changes to our flights. The Jetblue staff were very helpful. Our flights were great. Lots of leg room!

The flight was delayed for 4 hours. Once onboard the crew was wonderful.

Did not enjoy this flight at all. All of my coworkers flew delta and I chose JetBlue because I really value how simple the WiFi and entertainment is and this flight I didn’t get either. Crew staff was unsympathetic to my system not working, everyone I asked for help with was extremely bothered by my request for help.

Little snafu at boarding. Staff communicated with gate poorly. Flight attendant was rude making disembark early. This was an older mint class. Needs an overhaul for sure. Food was good. The male flight attendant was really nice.

Like the space, did not like the snack options, there was no power outlet in seats, no entertainment, no flyfi.

In-flight staff was very helpful and excellent. However, the flight was delayed by 90 minutes. Also the boarding process should be expedited in case of delayed flights. This will help the passengers trying to make international connections.

The walk from baggage claim to the taxi is very difficult for older people I will never fly into JFK again. It is physically challenging

Flight was delayed by almost 5 hours. Suitcase was not loaded despite the flight being near empty (my colleagues’ suitcases did reach JFK, unlike mine). Had to argue on phone to get JetBlue to deliver the case to my hotel. Never again

Great. Loved that there was WiFi on flight to keep in touch and excellent service of beverages and snacks.

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

Whenever a passenger purchase a ticket his advantage number should automatically to his information. It's not everyone remember the number. You request for your number and American airline agent say they will email it....and they never email anything and you loose your mileage just because you don't remember your number. It should automatically go your information and associate with your email account at all times

The flight was two hours late to take off. The captain kept making announcements in English, but the volume on the speakers was low and we could not hear him. The flight attendant’s French translation was loud and clear, but we couldn’t understand French. The crew was nowhere to be found to relay what the captain was announcing. Very frustrating experience. American has to do better.

Paid $35 and not able to access the internet at all.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Flight was delayed bc of mechanical issue. New plane had different configuration so some seats had to be switched. They called all passengers who needed new boarding cards. They did not call us so we thought our seats were the same and fine. When we boarded they informed us our receipts had changed and we are now all sitting separate and in the back row. Both my daughters had meltdowns and started to cry and once we got on the flight, we figured out how we could sit closer to each other, but this was very upsetting.

You ant watch TV if you don't have a device, the seats have more space, and the snacks are different.

Flight was empty so had a whole row to myself. Still had to wait to get the bag due to the negligence at Palm Springs departure.

Amazingly comfy flight - I had upgraded for a reasonable price and it was worth it. The food also was good.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

I guess you get what you pay for. The seats are very uncomfortable and very little space. The snacks were pricey.

Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.

Flight was delayed 3 times, would have been nice to have received text message instead of email notifications. Frontier app wasn’t even updated accordingly, no gate number disclosed. No agent at front desk of gate to inform of delay. Very confused and left if the dark

They changed the timing , first delayed by 4 hours then went back to 40 mins late, we had to run back to airport to not miss our flight. This is ridiculous

Would be great if Frontier can Assign Seats together under one PNR

They cancelled the flight and did nothing. I should be compensated for my uber rides to and from airport. Not a good service by frontier or kayak.

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