ONT - JFK

$100 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 2/3. 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, 0 bags

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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Everything you should know

Cheapest round-trip
$177
Overall average: $462
American Airlines
Tue 2/3Tue 2/10
ONT - JFK • 1 stop
Cheapest non-stop
$308
Typical prices: $287-$417
JetBlue
Sat 5/16Tue 5/19
ONT - JFK • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
ONT offers streamlined security with short wait times.
Use the JFK AirTrain for free terminal transfers.
Expert advice
Expert advice
Expert advice
Expert advice
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 24% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 25% price drop
September
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to John F Kennedy Intl!
Flight Deals
Booking Insights
Expert advice
Flight 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

Tue, Feb 3 - Tue, Feb 10
American Airlines Logo
6:00 am - 5:17 pm
ONT
-
JFK
8h 17m1 stop
American Airlines Logo
12:25 pm - 6:20 pm
JFK
-
ONT
8h 55m1 stop
$177American Airlines
Thu, Feb 5 - Mon, Feb 9
American Airlines Logo
7:30 pm - 6:30 am
ONT
-
JFK
8h 00m1 stop
American Airlines Logo
8:25 am - 4:05 pm
JFK
-
ONT
10h 40m1 stop
$180American Airlines
Tue, Feb 3 - Tue, Feb 10
American Airlines Logo
9:59 am - 10:23 pm
ONT
-
JFK
9h 24m2 stops
American Airlines Logo
7:55 am - 2:18 pm
JFK
-
ONT
9h 23m1 stop
$182American Airlines
Tue, Feb 3 - Tue, Feb 10
American Airlines Logo
9:59 am - 10:23 pm
ONT
-
JFK
9h 24m2 stops
American Airlines Logo
9:00 am - 6:20 pm
JFK
-
ONT
12h 20m2 stops
$188American Airlines
Mon, Jan 26 - Sat, Jan 31
American Airlines Logo
11:59 pm - 11:30 am
ONT
-
JFK
8h 31m1 stop
American Airlines Logo
12:30 pm - 6:20 pm
JFK
-
ONT
8h 50m1 stop
$214American Airlines
Fri, Jan 30 - Thu, Feb 5
American Airlines Logo
11:59 pm - 11:30 am
ONT
-
JFK
8h 31m1 stop
American Airlines Logo
2:30 pm - 10:48 pm
JFK
-
ONT
11h 18m1 stop
$217American Airlines
Mon, Jan 26 - Sat, Jan 31
American Airlines Logo
11:59 pm - 11:30 am
ONT
-
JFK
8h 31m1 stop
American Airlines Logo
11:22 am - 6:20 pm
JFK
-
ONT
9h 58m2 stops
$219American Airlines
Fri, Jan 30 - Tue, Feb 3
American Airlines Logo
11:59 pm - 2:02 pm
ONT
-
JFK
11h 03m2 stops
American Airlines Logo
2:30 pm - 10:48 pm
JFK
-
ONT
11h 18m1 stop
$222American Airlines
Fri, Jan 30 - Tue, Feb 3
American Airlines Logo
9:59 am - 10:23 pm
ONT
-
JFK
9h 24m2 stops
American Airlines Logo
11:21 am - 6:20 pm
JFK
-
ONT
9h 59m2 stops
$228American Airlines
Wed, Feb 25 - Mon, Mar 2
American Airlines Logo
11:58 pm - 1:24 pm
ONT
-
JFK
10h 26m2 stops
American Airlines Logo
3:59 pm - 10:07 pm
JFK
-
ONT
9h 08m1 stop
$233American Airlines
Booking Insights

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 Saturdays and avoid leaving on a Wednesday, as it's usually the priciest day. When flying back from New York John F Kennedy Airport, Friday is the cheapest day to fly and Monday 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 $256 (return) on average. On the other hand, the most expensive months are February and March, where the average cost of round-trip tickets is $462 and $387 respectively.

Can I save money by flying with a layover from Ontario to New York John F Kennedy Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $297 on average.

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 3 weeks before departure, which saves you about 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Expert advice

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

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
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.

JFK

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

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

Good to know

Low seasonFebruary
Cheapest flight$100
Best time to beat the crowds but there is an average 35% increase in price.
Most popular time to fly and prices are also 3% 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 $100 for a one-way ticket and $177 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?

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

  • 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.

  • Which airline alliances offer flights from Ontario to New York John F Kennedy Airport?

    SkyTeam, and oneworld are the airline alliances operating flights between Ontario and New York John F Kennedy Airport, with SkyTeam being the most commonly used for this route.

  • What is the most popular layover when flying to New York John F Kennedy Airport from Ontario?

    Phoenix is the most popular layover city among KAYAK users traveling from Ontario to New York John F Kennedy Airport.

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

    The two airlines most popular with KAYAK users for flights from Ontario to New York are Delta and JetBlue. With an average price for the route of $413 and an overall rating of 7.9, Delta is the most popular choice. JetBlue is also a great choice for the route, with an average price of $352 and an overall rating of 7.2.

  • 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 $362 or less round-trip.

Reviews of the top 4 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.
7.9
DeltaOverall score based on 8017 reviews
8.5Crew
8.1Boarding
7.8Entertainment
7.9Comfort
7.2Food
Airline reviews

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

2.0 MediocreAnonymous, Jan 2026
PHX - JFK
Read more Delta reviews

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

I went to washroom twice and once there was no toilet seat cover and the other no toilet paper at all. I don't think it was ever replenished or checked before we boarded as it was very early on in the flight.

Premium economy is like the forgotten class. Aside from meal service never saw a flight attendant. Any additional beverages required going to the very back of the plane to request and there was rarely an attendant there. Seat leg / foot rest hardly elevates and not well suite for someone under 5’6. Bulky armrests

I paid for a business class ticket on Delta. It was sourced to Virgin Atlantic. They changed out the aircraft which had fewer upper class tickets. Even though I'd checked into the lounge, was receiving alerts via kayak about the delay and changes; no one informed me that the seat would be changed - until I attempted to board and was told that I would have an economy seat or they could search to put me on another airline. Even the flight crew were informed of this change (10 passengers were bumped out of Upper Class) around 2 pm (1400) time. Hours would have helped to consider alternatives instead of making a last minute change. There needs to be compensation from both Delta and Virgin given this change in service/experience.

The food is terrible. The staff is wonderful. Comfort is good.

For some reason, I couldn't choose my seat. The airline gave me a seat when I got there. Not happy about that. Otherwise, everything else was great!

One of the best airlines that I flew on, the flight attendants were very attentive and professional.

the over had ligth did not work'd for the all way

Seats comfortable, service and food very mediocre, staff not very attentive, worse than many other our flights with Delta.

Overall good experience; however, there was one flight attendant who was rather rough compared to everyone else. Everything else was good: entertainment, food. Delta keeps on delivering! Thank you!

Gate was overcrowded. Gate agents performed very well. Flight crew was top notch! Efficient & professional & courteous. Both meals not thermalized well. Dinner main dish was actually cold in the center. Almost inedible. Breakfast sandwich was lukewarm.

RIC Staff was not enough. Elderly passengers had to wait 30 minutes to deplane, so we could board and still had to walk as no chairs were provided. And, passenger in front of my seat assignment rammed seat against my legs entire flight time. Was mildly bruised and left thigh still sore.

Overall, an average flight; food options were not the best, and there were bugs on the plane.

There was no TV's on the plane? I tried to activated the WiFi multiple times before the plane took off but it wasn't work well.

Air Marco’s fleet of airplanes are old and pathetic. The seats are torn and stained. The monitors don’t work properly. If this wasn’t a business trip and I had control of booking the flight, I would not travel on this carrier.

Good service, friendly staff. Food was average for airlines and the seats were small.

Pathetic check in experience once again. Not enough staff scheduled at bag drop or for special assistance at LHR. Really need to rethink the whole self check in procedure. The crew was good. A very decent selection of special meals in this leg as compared to the JFK-LHR leg.

Flight was cancelled 3 hrs AFTER etd. Thetefore Missed connection from JFK to New Zealand . No accommodation provided… This cost ne aporox 1000 USD in extra expenses and turned whst should have been a 24 hr trip ftom Boston - New Zealand into a VERY expensive , late 70+ hr nightmare … Complete nonsense!!!

Overall fine, but the delay was annoying and the reasons for the delay were not communicated. The crew on board were phenomenal!

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!

The ride share experience in JFK is terrible. After traveling on a flight, then you need to take a subway to the last stop to get an uber or lyft. Unacceptable. Bad job JetBlue for permitting JFK and Port Authority to do this to your passengers.

Four plus hour flight delay in New York caused us to take off after 11:30pm. We didn’t arrive at our hotel until five hours after check in. Started the trip off feeling exhausted.

I don’t usually fly budget airlines or airlines in the United States. It was as good as any other airline. The seats are comfortable and the airline attendants are not rude & surly. Very nice flight (s).

They have the most inexperienced / rude flight staff I’ve encountered

I paid extra for a seat closer to the front. The TV didn’t work at all for the entire flight. Would have been nice to know before I purchased an “upgraded “ seat

Too many long delays with JetBlue. Worst major airline that serves JFK but unfortunately I keep going back because of the prices.

flight cancelled after 2 delays. left us sitting in JFK at 1am. no customer service to assist rebooking.

To not have food or proper snacks on a 5 hour flight was the worst.

Ground crew gave me interference about carrying a laptop and a small shoulder bag, even though I told them I traveled with them all the time. I then placed my laptop bag in my carryon and took out a medical device, and ground crew still tried to give interference. I had to remind them that medical devices don't count towards luggage limits. It was quite annoying and unne

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.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

Plane and crew on board were fine. Everything else was terrible.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.

Disaster. They lied every step of the way. We ended up being delayed due to crew and then allegedly abandoned the flight because of a curfew at LGA. No rebooking to LGA at any reasonable time. No hotel. No meal vouchers. Had to sleep in the airport and fly to Newark instead. Will never fly Frontier again.

My first flight was delayed 5 hours. The 2nd flight was canceled til the next day and the never even tried to compensate for it. Worse I was delayed again on the flight the rebooked me on.

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.

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

Information on your arrival and departure airports