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$120+ Cheap flights from John F Kennedy Intl, NY (JFK) to Ontario (ONT)

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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
JFK — ONT
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheapflights Tip: The best prices from New York John F Kennedy Intl to Ontario are usually found in March or January, booked 64 days in advance, depart on a Saturday or Tuesday and return on a Monday

Cheap flight deals from John F Kennedy Intl to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from John F Kennedy Intl (JFK) to Ontario (ONT). 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 April 24, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$206
(Cheapflightsfares)

One-way from

$120
(SmartFares)

Popular in

February

Cheapest in

March

Average price

$311

Good round-trip deal

$287 or less

Good one-way deal

$138 or less
Provider with most accurate pricing for New York John F Kennedy Intl-Ontario flight deals.
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Provider most trusted by Cheapflights users for New York John F Kennedy Intl-Ontario flights.
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From New York John F Kennedy Intl to Ontario
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One-way flight from New York John F Kennedy Intl to Ontario
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High demand for flights, 10% potential price rise
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from New York John F Kennedy Intl to Ontario.
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Price to beat on a one-way flight from New York John F Kennedy Intl to Ontario.
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Find flight deals from John F Kennedy Intl to Ontario

Cheapest flights from John F Kennedy Intl to Ontario
Explore the most affordable flight options available from John F Kennedy Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

This Booking.com deal was found by Cheapflights users on 4/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/306:59 amJFK - ONT
1 stop27h 25mFrontier
Thu 5/86:35 pmONT - JFK
1 stop7h 55mFrontier
Deal found 4/22$206
This JetBlue deal was found by Cheapflights users on 4/23. 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 5/246:00 pmJFK - ONT
Nonstop6h 11mJetBlue
Sun 5/2510:59 pmONT - JFK
Nonstop5h 20mJetBlue
Deal found 4/23$267
This Alaska Airlines deal was found by Cheapflights users on 4/23. 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.
Tue 9/167:27 amJFK - ONT
1 stop9h 39mAlaska Airlines
Tue 9/237:17 pmONT - JFK
1 stop9h 03mAlaska Airlines
Deal found 4/23$269
This Delta deal was found by Cheapflights users on 4/23. 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.
Thu 5/291:30 pmJFK - ONT
1 stop9h 03mDelta
Tue 8/1212:00 pmONT - JFK
1 stop10h 07mDelta
Deal found 4/23$282
This American Airlines deal was found by Cheapflights users on 4/23. 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 5/143:25 pmJFK - ONT
1 stop8h 40mAmerican Airlines
Sat 5/1710:51 amONT - JFK
2 stops9h 09mAmerican Airlines
Deal found 4/23$292
This Hawaiian Airlines deal was found by Cheapflights users on 4/23. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/165:29 pmJFK - ONT
1 stop9h 30mHawaiian Airlines
Tue 9/237:17 pmONT - JFK
1 stop9h 03mHawaiian Airlines
Deal found 4/23$296

Cheapflights Fare Finder

Customize your flight search to find flights from John F Kennedy Intl to Ontario 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 April 24, 2025.
Use the filters below to find and compare flights from New York John F Kennedy Intl Airport to Ontario that are best for you.

Fly from

John F Kennedy Intl

Fly to

Ontario

Route

Depart

Return

Price

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 4/30

6:59 am-7:24 am

1 stop27h 25m

Ontario

Thu 5/8

6:35 pm-5:30 am

1 stop7h 55m

$206

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 5/28

6:00 pm-9:11 pm

Nonstop6h 11m

Ontario

Sat 5/31

10:59 pm-7:19 am

Nonstop5h 20m

$267

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Tue 6/3

7:29 am-3:50 pm

1 stop11h 21m

Ontario

Tue 6/10

4:45 pm-6:09 am

1 stop10h 24m

$269

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Thu 5/29

1:30 pm-7:33 pm

1 stop9h 03m

Ontario

Wed 8/13

10:59 pm-9:48 am

1 stop7h 49m

$282

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 5/14

3:25 pm-9:05 pm

1 stop8h 40m

Ontario

Sat 5/17

10:51 am-11:00 pm

2 stops9h 09m

$292

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 5/14

7:20 am-3:32 pm

1 stop11h 12m

Ontario

Wed 6/11

4:45 pm-6:09 am

1 stop10h 24m

$346

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Sat 5/24

9:30 am-10:46 pm

2 stops16h 16m

Ontario

Fri 5/30

7:37 pm-5:30 am

1 stop6h 53m

$390

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Sun 5/25

1:00 pm-7:43 pm

1 stop9h 43m

$120

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Tue 6/10

7:29 am-3:50 pm

1 stop11h 21m

$131

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Sat 5/24

6:00 pm-9:11 pm

Nonstop6h 11m

$134

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 14 results
1
2

Compare providers for flights from John F Kennedy Intl to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from John F Kennedy Intl to Ontario in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*2 stars
CheapOairPrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on New York John F Kennedy Intl Airport-Ontario flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on New York John F Kennedy Intl Airport-Ontario flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from New York John F Kennedy Intl Airport-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on New York John F Kennedy Intl Airport-Ontario flights, Cheapflights users trust Mytrip the most. Mytrip has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for New York John F Kennedy Intl Airport-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from John F Kennedy Intl to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from John F Kennedy Intl 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 New York John F Kennedy Intl Airport to Ontario

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

Use this chart to determine the optimal time to book a round-trip flight from John F Kennedy Intl to Ontario. Price data was last updated on April 18, 2025.

The price you pay for your flight from New York John F Kennedy Intl Airport to Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 64 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 New York John F Kennedy Intl Airport to Ontario?

Currently, August is the cheapest month in which you can book a flight from New York John F Kennedy Intl Airport to Ontario (average of $246). Flying from New York John F Kennedy Intl Airport to Ontario in March is currently the most expensive (average of $328). 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 JFK to ONT?

Find hourly flight availability from John F Kennedy Intl to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2025.

When flying from New York John F Kennedy Intl Airport to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 26% versus a flight in the evening.

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

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

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

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated April 24, 2025.
To help decide which airline to fly from New York to Ontario, see what other customers have to say about Alaska Airlines, Delta and Hawaiian Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,918 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,393 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,685 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
JetBlue
7.3
Good
2,924 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Entertainment

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Food

7.1

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from John F Kennedy Intl to Ontario. 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 into for flights to Ontario from New York John F Kennedy Intl?

    For a flight from New York John F Kennedy Intl to Ontario, you will be flying into Ontario. Ontario (ONT) is just 3.1 mi from the center of the city. Ontario is the only Ontario airport and it handles 0 inbound flights from New York John F Kennedy Intl per day. 4 airlines have flights to Ontario from New York John F Kennedy Intl on a regular basis.

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

    Our cheapest airline available from New York John F Kennedy Intl Airport to Ontario is Frontier. Our recent data shows that you can find tickets from as low as $206 on this airline. Additional options worth looking into are JetBlue and Alaska Airlines, starting at $267 and $269 round-trip. These flights start at 44% lower than the current average price 3 months from now.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $120. Users have also found prices from $131 and $134 on Alaska Airlines and JetBlue, respectively.

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

    Looking for the cheapest flight from New York John F Kennedy Intl Airport to Ontario? While on average our users pay $245, our data indicates the cheapest price to be $121. The most popular route (New York John F Kennedy Intl - Ontario), is priced around $189.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from John F Kennedy Intl to Ontario 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 New York John F Kennedy Intl Airport to Ontario?

    Currently, August is the cheapest month in which you can book a flight from New York John F Kennedy Intl Airport to Ontario (average of $246). Flying from New York John F Kennedy Intl Airport to Ontario in March is currently the most expensive (average of $328). 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.

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Alternative routes for John F Kennedy Intl to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from John F Kennedy Intl to Ontario

Discover the top 4 airlines that operate flights from John F Kennedy Intl to Ontario. 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$97Average$245FlexibilityNo cancel feeOn-time62%
DeltaCheapest$219Average$418FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$236Average$414FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$257Average$382FlexibilityNo cancel feeOn-time71%

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