John F Kennedy Intl

$116+ Cheap flights from Ontario (ONT) to John F Kennedy Intl, NY (JFK)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — JFK
Oct 11 — Oct 181
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Cheapflights Tip: The best prices from Ontario to New York John F Kennedy Intl are usually found in January or September, booked 66 days in advance, depart on a Friday or Sunday and return on a Friday

Cheap flight deals from Ontario to John F Kennedy Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to John F Kennedy Intl (JFK). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$225
(Kiwi.com)

One-way from

$116
(Booking.com)

Popular in

December

Cheapest in

January

Average price

$318

Good round-trip deal

$299 or less

Good one-way deal

$153 or less
From Ontario to New York John F Kennedy Intl
One-way flight from Ontario to New York John F Kennedy Intl
Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from Ontario to New York John F Kennedy Intl.
Price to beat on a one-way flight from Ontario to New York John F Kennedy Intl.

Find flight deals from Ontario to John F Kennedy Intl

Cheapest flights from Ontario to John F Kennedy Intl
Explore the most affordable flight options available from Ontario to John F Kennedy Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/201:37 pmONT - JFK
1 stop12h 53mFrontier
Mon 9/226:59 amJFK - ONT
1 stop10h 01mFrontier
Deal found 9/10$225
This JetBlue deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1410:56 pmONT - JFK
Nonstop5h 22mJetBlue
Tue 10/216:35 pmJFK - ONT
Nonstop5h 54mJetBlue
Deal found 9/10$227
This Frontier deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/67:44 pmONT - JFK
1 stop7h 46mFrontier
Wed 11/124:00 pmJFK - ONT
1 stop10h 50mFrontier
Deal found 9/10$228
This Rumbo deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2810:56 pmONT - JFK
Nonstop5h 22mJetBlue
Sat 10/46:35 pmJFK - ONT
Nonstop5h 54mJetBlue
Deal found 9/11$229
This CheapOair deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2912:13 pmONT - JFK
1 stop20h 45mFrontier
Thu 10/212:30 pmJFK - ONT
1 stop25h 58mFrontier
Deal found 9/9$230
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/201:37 pmONT - JFK
1 stop12h 53mFrontier
Tue 9/236:59 amJFK - ONT
1 stop17h 57mFrontier
Deal found 9/10$231
This JetBlue deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3010:56 pmONT - JFK
Nonstop5h 22mJetBlue
Fri 10/36:35 pmJFK - ONT
Nonstop5h 54mJetBlue
Deal found 9/10$232
This Trip.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:30 pmONT - JFK
1 stop7h 00mFrontier
Sun 10/56:59 amJFK - ONT
1 stop27h 18mFrontier
Deal found 9/11$233
This CheapOair deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/57:15 pmONT - JFK
1 stop13h 13mFrontier
Sat 10/1112:59 pmJFK - ONT
1 stop21h 50mFrontier
Deal found 9/10$234
This Mytrip deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/111:37 pmONT - JFK
1 stop12h 53mFrontier
Sat 10/186:59 amJFK - ONT
1 stop8h 38mFrontier
Deal found 9/10$235
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/74:02 pmONT - JFK
1 stop16h 59mFrontier
Wed 12/106:59 amJFK - ONT
1 stop17h 05mFrontier
Deal found 9/11$236
This JetBlue deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1110:56 pmONT - JFK
Nonstop5h 22mJetBlue
Sat 10/186:35 pmJFK - ONT
Nonstop5h 54mJetBlue
Deal found 9/11$237

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to John F Kennedy Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Ontario to New York John F Kennedy Intl Airport that are best for you.

Fly from

Ontario

Fly to

John F Kennedy Intl

Route

Depart

Return

Price

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Tue 9/30

10:56 pm-7:18 am

Nonstop5h 22m

New York John F Kennedy Intl

Fri 10/3

6:35 pm-9:29 pm

Nonstop5h 54m

$232

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Sat 9/27

10:56 pm-7:18 am

Nonstop5h 22m

New York John F Kennedy Intl

Tue 9/30

6:35 pm-9:29 pm

Nonstop5h 54m

$236

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Sun 9/28

10:56 pm-7:18 am

Nonstop5h 22m

New York John F Kennedy Intl

Sat 10/4

6:35 pm-9:29 pm

Nonstop5h 54m

$242

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Sat 9/27

10:56 pm-7:18 am

Nonstop5h 22m

New York John F Kennedy Intl

Fri 10/3

6:35 pm-9:29 pm

Nonstop5h 54m

$242

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Wed 10/1

10:56 pm-7:18 am

Nonstop5h 22m

New York John F Kennedy Intl

Wed 10/15

6:35 pm-9:29 pm

Nonstop5h 54m

$247

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Wed 10/15

8:00 am-5:30 am

1 stop18h 30m

New York John F Kennedy Intl

Sun 10/19

6:59 am-7:47 am

1 stop27h 48m

$252

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Fri 9/26

10:56 pm-7:18 am

Nonstop5h 22m

New York John F Kennedy Intl

Wed 10/8

6:35 pm-9:29 pm

Nonstop5h 54m

$257

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Tue 11/4

6:00 am-7:29 pm

1 stop10h 29m

New York John F Kennedy Intl

Sun 11/9

7:00 am-3:17 pm

1 stop11h 17m

$276

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Sat 12/6

5:49 pm-6:14 am

1 stop9h 25m

New York John F Kennedy Intl

Thu 12/11

7:00 am-5:07 pm

1 stop13h 07m

$277

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Sat 12/6

6:40 am-8:05 pm

1 stop10h 25m

New York John F Kennedy Intl

Tue 12/9

7:00 am-5:07 pm

1 stop13h 07m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 23 results
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Best time to book a flight from Ontario to John F Kennedy Intl

Have a flexible travel schedule? Discover the best time to fly to John F Kennedy Intl from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to New York John F Kennedy Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Ontario to John F Kennedy Intl. Price data was last updated on August 29, 2025.

The price you pay for your flight from Ontario to New York John F Kennedy Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 66 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Ontario to New York John F Kennedy Intl Airport (average of $236). Flying from Ontario to New York John F Kennedy Intl Airport in June is currently the most expensive (average of $314). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to JFK?

Find hourly flight availability from Ontario to John F Kennedy Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 12% on flights from Ontario to New York John F Kennedy Intl Airport by exploring options for tickets in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Ontario to John F Kennedy Intl. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Ontario to New York John F Kennedy Intl Airport flight should consider departing on Friday afternoons when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing John F Kennedy Intl

Get insights into the airlines that provide service to John F Kennedy Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to John F Kennedy Intl. Reviews last updated September 11, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and American Airlines from Ontario to New York John F Kennedy Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Crew

8.5

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
8.0
Very good

Crew

8.5

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Crew

8.5

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Crew

8.5

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Crew

8.5

Overall

8.0

Entertainment

7.0

Comfort

7.8

Food

7.1

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Ontario to John F Kennedy Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Ontario to New York John F Kennedy Intl?

    Most people fly from Ontario (ONT) if they book a flight from Ontario to New York John F Kennedy Intl. On average, Ontario has 1 outbound flight to New York John F Kennedy Intl per day from 5 airlines. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • How long is the flight from Ontario to New York John F Kennedy Intl Airport?

    Departing from Ontario to New York John F Kennedy Intl Airport will take you 5h 22m. Ontario and New York John F Kennedy Intl Airport are separated by a distance of 2422 mi. Most flights are nonstop.

  • What are the cheapest airlines flying from Ontario to New York John F Kennedy Intl Airport round-trip?

    Flying on Frontier is currently your cheapest option to New York John F Kennedy Intl Airport, with prices starting at $112. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $188 and $237, respectively. Frontier is priced at 67% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Ontario to New York John F Kennedy Intl Airport one-way?

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $123. JetBlue flights start at $124 while deals on Frontier start at $126 one-way.

  • What are the most reliable airlines from Ontario to New York John F Kennedy Intl Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Ontario to New York John F Kennedy Intl Airport on time: Etihad Airways (76%), JetBlue (76%), Air Serbia (76%).

  • What are the cheapest flights from Ontario to New York John F Kennedy Intl Airport?

    The cheapest flight price from Ontario to New York John F Kennedy Intl Airport is $118. On average you can expect to pay $291. The most popular route, (Ontario - New York John F Kennedy Intl), can usually be booked for $195.

  • Can I find deals for flights from Ontario to John F Kennedy Intl that include hotel bookings?

    Yes. In addition to deals on Ontario to John F Kennedy Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to John F Kennedy Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to John F Kennedy Intl.

  • Can I find deals for business class flights from Ontario to John F Kennedy Intl?

    Yes. Cheapflights offers flight deals from Ontario to John F Kennedy Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, January is the cheapest month in which you can book a flight from Ontario to New York John F Kennedy Intl Airport (average of $236). Flying from Ontario to New York John F Kennedy Intl Airport in June is currently the most expensive (average of $314). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near New York John F Kennedy Intl Airport?

Book flights to New York John F Kennedy Intl Airport if you plan to visit one of these locations
Queens
Bronx
Elizabeth
Mahwah
Secaucus
Yonkers
Ronkonkoma
East Rutherford
North Bergen
Staten Island
Stamford
New Brunswick
Absecon
Carle Place
East Brunswick
Hoboken
Westbury
Avenel
Paterson
Fort Lee

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Alternative routes for Ontario to John F Kennedy Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Ontario to John F Kennedy Intl

Discover the top 5 airlines that operate flights from Ontario to John F Kennedy Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$112Average$234FlexibilityNo cancel feeOn-time62%
DeltaCheapest$188Average$435FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$237Average$379FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$254Average$353FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$337Average$558FlexibilityNo cancel feeOn-time75%

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