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John F Kennedy Intl

$128+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — JFK
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 Monday or Sunday and return on a Wednesday

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 June 12, 2025.

Round-trip from

$223
(Gotogate)

One-way from

$128
(Cheapflightsfares)

Popular in

December

Cheapest in

January

Average price

$372

Good round-trip deal

$313 or less

Good one-way deal

$155 or less
From Ontario to New York John F Kennedy Intl
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One-way flight from Ontario to New York John F Kennedy Intl
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High demand for flights, 3% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Ontario to New York John F Kennedy Intl.
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Price to beat on a one-way flight from Ontario to New York John F Kennedy Intl.
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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 June 12, 2025.

This Gotogate deal was found by Cheapflights users on 6/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2112:28 pmONT - JFK
1 stop14h 02mFrontier
Sun 8/246:59 amJFK - ONT
1 stop27h 34mFrontier
Deal found 6/12$223
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3011:59 pmONT - JFK
1 stop8h 52mAmerican Airlines
Wed 8/66:15 amJFK - ONT
2 stops10h 24mAmerican Airlines
Deal found 6/12$229
This JetBlue deal was found by Cheapflights users on 6/11. 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.
Tue 9/1610:56 pmONT - JFK
Nonstop5h 22mJetBlue
Tue 9/236:35 pmJFK - ONT
Nonstop5h 54mJetBlue
Deal found 6/11$257
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/110:05 pmONT - JFK
1 stop10h 09mDelta
Wed 8/61:30 pmJFK - ONT
1 stop8h 50mDelta
Deal found 6/11$281
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/116:00 amONT - JFK
1 stop10h 24mAlaska Airlines
Fri 10/175:29 pmJFK - ONT
1 stop9h 20mAlaska Airlines
Deal found 6/10$296

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 June 12, 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

Thu 8/21

12:28 pm-5:30 am

1 stop14h 02m

New York John F Kennedy Intl

Sun 8/24

6:59 am-7:33 am

1 stop27h 34m

$223

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Wed 7/30

11:59 pm-11:51 am

1 stop8h 52m

New York John F Kennedy Intl

Wed 8/6

6:15 am-1:39 pm

2 stops10h 24m

$229

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Tue 9/16

10:56 pm-7:18 am

Nonstop5h 22m

New York John F Kennedy Intl

Tue 9/23

6:35 pm-9:29 pm

Nonstop5h 54m

$257

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Fri 8/1

10:05 pm-11:14 am

1 stop10h 09m

New York John F Kennedy Intl

Wed 8/6

1:30 pm-7:20 pm

1 stop8h 50m

$281

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Sat 10/11

6:00 am-7:24 pm

1 stop10h 24m

New York John F Kennedy Intl

Fri 10/17

5:29 pm-11:49 pm

1 stop9h 20m

$296

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Mon 9/22

7:35 pm-5:54 am

1 stop7h 19m

$128

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Tue 8/12

10:00 pm-10:00 am

1 stop9h 00m

$134

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Tue 10/7

7:25 pm-7:20 am

1 stop8h 55m

$138

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Fri 7/11

8:15 am-9:00 pm

1 stop9h 45m

$143

OntarioNew York

ONT - JFK

ONTJFK

Ontario

Sun 9/21

10:56 pm-7:18 am

Nonstop5h 22m

$159

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 11 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 June 9, 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 July is currently the most expensive (average of $327). 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 June 12, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 14% 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.

Weekly flight availability from Ontario to New York John F Kennedy Intl Airport

Explore weekly flight availability from Ontario to John F Kennedy Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from ONT to JFK are scheduled on a Wednesday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in John F Kennedy Intl by month

Plan your trip to John F Kennedy Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in New York John F Kennedy Intl Airport ranges from 2.8 - 4.5 inches per month. July is typically the wettest month, when rainfall can reach 4.5 in. February is typically the driest time to visit New York John F Kennedy Intl Airport when rainfall is around 2.8 in.

Temperature in John F Kennedy Intl by month

Plan your trip to John F Kennedy Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to New York John F Kennedy Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

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 June 12, 2025.
See what other customers who have flown with Alaska Airlines, Delta and Hawaiian Airlines from Ontario to New York have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
JetBlue
7.3
Good
2,925 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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 $223. Additional round-trip tickets that might be worth considering are offered by American Airlines and JetBlue, with the lowest prices starting at $229 and $257, respectively. Frontier is priced at 37% 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 Frontier, which is currently one of the cheapest options available, starting at $128. Delta flights start at $134 while deals on Alaska Airlines start at $138 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 (90%), Air Serbia (89%), JetBlue (81%).

  • 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 $138. On average you can expect to pay $273. The most popular route, (Ontario - New York John F Kennedy Intl), can usually be booked for $214.

  • 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 July is currently the most expensive (average of $327). 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 Ontario?

Book flights to Ontario if you plan to visit one of these locations
Queens
Bronx
Elizabeth
Secaucus
East Rutherford
Ronkonkoma
Parsippany
Yonkers
Staten Island
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East Brunswick
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Fort Lee
Tannersville

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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.
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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$100Average$225FlexibilityNo cancel feeOn-time62%
DeltaCheapest$188Average$405FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$246Average$372FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$253Average$357FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$335Average$395FlexibilityNo cancel feeOn-time75%

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