JFK - ONT

$152 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 8/23. 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 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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Everything you should know

Cheapest round-trip
$307
Typical prices: $278-$363
JetBlue
Thu 8/27Mon 8/31
JFK - ONT • Non-stop
Cheapest one-way
$152
Typical prices: $153-$278
JetBlue
Sun 8/23
JFK - ONT • Non-stop
Top airlines
Cheapest • from $307 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with JetBlue. Average duration is 6h 10m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $334 (round-trip)
Shortest trip • 8h 22m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 33% price drop
Most popular
Good to know
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Flight Deals

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

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Thu, Aug 27 - Mon, Aug 31
JetBlue Logo
7:30 pm - 10:38 pm
JFK
-
ONT
6h 08mnonstop
JetBlue Logo
11:59 pm - 8:20 am
ONT
-
JFK
5h 21mnonstop
$307JetBlue
Tue, Sep 1 - Mon, Sep 7
JetBlue Logo
7:29 pm - 10:37 pm
JFK
-
ONT
6h 08mnonstop
JetBlue Logo
11:50 pm - 8:11 am
ONT
-
JFK
5h 21mnonstop
$309JetBlue
Sat, Jul 4 - Mon, Jul 20
Delta Logo
4:50 pm - 10:23 pm
JFK
-
ONT
8h 33m
1 stop
Delta Logo
11:48 am - 11:09 pm
ONT
-
JFK
8h 21m
1 stop
$312Delta
Wed, Aug 19 - Sun, Aug 23
Delta Logo
6:00 am - 12:16 pm
JFK
-
ONT
9h 16m
1 stop
Delta Logo
10:00 pm - 10:05 am
ONT
-
JFK
9h 05m
1 stop
$313Delta
Sat, Jul 4 - Thu, Jul 9
American Airlines Logo
5:59 am - 1:20 pm
JFK
-
ONT
10h 21m
2 stops
American Airlines Logo
1:11 pm - 11:58 pm
ONT
-
JFK
7h 47m
1 stop
$317American Airlines
Wed, Aug 19 - Sun, Aug 23
JetBlue Logo
7:29 pm - 10:37 pm
JFK
-
ONT
6h 08mnonstop
JetBlue Logo
11:59 pm - 8:20 am
ONT
-
JFK
5h 21mnonstop
$319JetBlue
Fri, Jul 3 - Wed, Jul 29
American Airlines Logo
12:29 pm - 6:18 pm
JFK
-
ONT
8h 49m
1 stop
American Airlines Logo
1:11 pm - 11:58 pm
ONT
-
JFK
7h 47m
1 stop
$322American Airlines
Thu, Aug 27 - Mon, Aug 31
Delta Logo
6:00 am - 12:16 pm
JFK
-
ONT
9h 16m
1 stop
Delta Logo
5:05 pm - 6:18 am
ONT
-
JFK
10h 13m
1 stop
$323Delta
Tue, Aug 18 - Sun, Aug 23
JetBlue Logo
7:29 pm - 10:37 pm
JFK
-
ONT
6h 08mnonstop
JetBlue Logo
11:59 pm - 8:20 am
ONT
-
JFK
5h 21mnonstop
$327JetBlue
Wed, Aug 5 - Sun, Aug 9
JetBlue Logo
7:40 pm - 10:48 pm
JFK
-
ONT
6h 08mnonstop
JetBlue Logo
11:59 pm - 8:20 am
ONT
-
JFK
5h 21mnonstop
$328JetBlue
Booking Insights

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.

How much is a round-trip flight from New York John F Kennedy Intl Airport to Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from New York John F Kennedy Intl Airport to Ontario departing in August.

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 Tuesday and avoid Mondays 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 Sundays and the most expensive ones on Wednesdays.

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 October, where tickets cost $277 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $696 and $604 respectively.

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

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.

No, with an average price for the route of $364, prices are generally cheapest when you fly direct.

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 5 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Expert advice

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

 
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.
Our travel experts
Jennifer Simonson

Jennifer Simonson

Expert on ONT

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.

Harriet Baskas

Harriet Baskas

Expert on JFK

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.

Good to know

Low seasonApril
Cheapest flight$152
Best time to beat the crowds but there is an average 46% increase in price.
Most popular time to fly and prices are also 22% 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 5 days, the lowest price for a flight from New York John F Kennedy Intl Airport to Ontario was $152 for a one-way ticket and $307 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, American Airlines, and Hawaiian 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 A321-100/200 is the aircraft model that flies most regularly on the New York John F Kennedy Airport to Ontario flight route.

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

    SkyTeam, and oneworld are the airline alliances operating flights between New York John F Kennedy Airport and Ontario, with SkyTeam being the most commonly used for this 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 $299 and an overall rating of 7.8, Delta is the most popular choice. JetBlue is also a great choice for the route, with an average price of $346 and an overall rating of 7.1.

  • 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 $239 or less one-way and $345 or less round-trip.

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

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from New York John F Kennedy Intl 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

JetBlue

JetBlue

Tuesday

JetBlue

JetBlue

Wednesday

JetBlue

JetBlue

Thursday

JetBlue

JetBlue

Friday

JetBlue

JetBlue

Saturday

JetBlue

JetBlue

Sunday

JetBlue

JetBlue

See more direct flights

Direct returns

Ontario to New York John F Kennedy Intl

Monday

JetBlue

JetBlue

Tuesday

JetBlue

JetBlue

Wednesday

JetBlue

JetBlue

Thursday

JetBlue

JetBlue

Friday

JetBlue

JetBlue

Saturday

JetBlue

JetBlue

Sunday

JetBlue

JetBlue

See more direct flights

Reviews of the 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.
7.8
DeltaOverall score based on 8456 reviews
8.5Crew
8.1Boarding
7.8Comfort
7.8Entertainment
7.2Food
Airline reviews

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

6.0 GoodLakshmi, Apr 2026
JFK - SFO
Read more Delta reviews

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

my mom urmila patel needed a wheelchair which was not available on the curbside. she needed to walk almost 50 meters inside (at the risk of falling) and then had to wait in line to get a wheelchair (this is not ok). Once obtained she had to seat in it for 30-45 minutes for someone to take her in thru the checkin process (which was fairly smooth and easy). the lady who helped her with her checkin process was very courteous and helpful

There’s not much to say about a one hour flight. This is a connection from LA to RNO that I missed the previous night due to a mechanical check delay on my originating flight from JFK to LAX. The short flight itself was fine. Instructions from the pilot and crew were per usual. The coffee was barely lukewarm, which possibly was purposeful so we would down it quickly. Bags were already on carousel upon reaching baggage claim, which was excellent.

They double booked seats, the gate staff changed my ticket as I was boarding she went over to the computer and changed it without telling me. She messed up an entire three row section for me and others. Other travelers were outraged but the gate staff were so rude, so condescending saying it wasn't their problem to solve. I would rate this a zero if I could. Will not fly Delta again I'll stick with United and American.

Not a "Delta" issue, but a JFK issue: We booked a connecting flight with 3 1/2 hours between to clearn immigration and customs. Our inbound flight (BCN to JFK) was on the taxiway 45 minutes which ate into our layover time. Immigtration was insanely quick with the CBP MPC app; however, clearing TSA (again, after we were ALREADY cleared in Spain on the inbound international flight) took over 95 minutes. This left us with 10 minutes before boarding the connecting flight (JFK to SAN) to walk to the far end of Terminal 4 and try to find food. We didn't find any food that could promise to serve us in under 10 minutes so we boarded the Delta flight after coming off a plance and an 8-hour flight knowing that we wouldn't be served any food on the next 5 1/2 hour flight. I feel like Delta needs to put pressure on the JFK TSA to open more screening stations (by our count, we saw only 5 scanners open and a line of - as we said - over 90 minutes. The insult is that we WERE ALREADY SCREENED through TSA, but as you come off one flight into the USA, you have to go through the whole process again. It seems like if you have a connecting flight, there should be a way to pass through immigration and customs without needing to return through TSA.

The entertainment and wifi mostly didn't work on this flight.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

I am still upset that my bag was lost on a recent trip to Rome ; we were inconvenienced and out €150 Euros ; delta has refused to reimburse us

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

Leave on time. We waited on the plane for hour hours and it was hot and smelly

Wifi was spotty. Tray table was very dirty when I sat down.

My flight from LGA was cancelled and my rebooked flight from JFK was delayed numerous times. I will now be getting home after 2am.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

Amazing I love American. I’ll never fly anyone else if I can help it.

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

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

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

Nothing really nondescript, the flight attendants were friendly and helpful.

It was fine. I didn't love the food but it was at least a real attempt at serving a meal, unlike my earlier flight from Nashville to Dallas.

Domestic flights are good. Just stay away from international travel

Boarding process was terrible. No assigned seat until the gate, then a long line to get seat assignment.

The space between seat rows seemed to be larger than other airlines. I didn’t check their food or entertainment since I slept most of the way. They do seem to have a lot of options for purchase though.

Kayak sucked. You gave me a confirmation number that was not useable by the jet blue system. Nor did you send any check in emails. I’ll not be using your site again. Nice work.

Crew were fantastic and so catering and wonderful! Full score for the entire crew!

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.

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!

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

The worst. They don’t follow procedure for boarding per group. Flight got delayed for no understandably reasons, they changed our destination from PR to Miami, left us inside a plane for more than 8 hours, then cancelled flight in Miami leaving us stranded. Poorly managed re-accommodation for a new flight and overnight stay so I have to spend in a new ticket and my own hotel room to been able to get to my office next day. Lost 2 days of work and as a doctor, patients loosing their appointments. to other flights and besides

I was 2 hr arrive in the airport and 45 min in the line . After take to my turn . The agent tell me I’m later . I can not board . So my vacation was going to the floor . Just for their bad customer service agent in the airline

The crew was mostly okay. The flight attendant who answered our questions was curt and unhelpful unfortunately. He seemed upset and I understand having off days.

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.

Flight was cancelled and was not able to get another flight thru Frontier. Per frontier a refund was issued but I do not see a refund on my Afirm account.

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Was charged 99 dollars for a bag despite agents previously telling me it would be ok. Customer service was unhelpful

I will like you ( Frontier Airlines) to fly into LAX instead of ONT because I live in LA and the subway takes me to my house in just 15 minutes

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

Information on your arrival and departure airports