$134 Cheap Flights from New York (JFK) to Ontario (ONT)

View $134 flight on Tue, Aug 12, 2025Opens in a new window

Popular airlines from John F. Kennedy Intl. Airport (JFK) to Los Angeles - Ontario Intl. Airport (ONT)

Cheap Flights from New York to Ontario (JFK-ONT)

Prices were available within the past 7 days and start at $134 for one-way flights and $257 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Wed, Sep 3 - Tue, Sep 9
JFK
New York
ONT
Ontario
$257 Roundtrip, found 2 hours ago
$257
Roundtrip
found 2 hours ago
Select JetBlue Airways flight, departing Wed, Sep 3 from New York to Ontario, returning Tue, Sep 9, priced at $257 found 2 hours ago
American Airlines
Tue, Aug 12 - Tue, Aug 19
JFK
New York
ONT
Ontario
$267 Roundtrip, just found
$267
Roundtrip
just found
Select American Airlines flight, departing Tue, Aug 12 from New York to Ontario, returning Tue, Aug 19, priced at $267 just found
JetBlue Airways
Tue, Sep 9 - Sat, Sep 13
JFK
New York
ONT
Ontario
$267 Roundtrip, just found
$267
Roundtrip
just found
Select JetBlue Airways flight, departing Tue, Sep 9 from New York to Ontario, returning Sat, Sep 13, priced at $267 just found
American Airlines
Tue, Aug 19 - Tue, Sep 2
JFK
New York
ONT
Ontario
$274 Roundtrip, found 1 day ago
$274
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Aug 19 from New York to Ontario, returning Tue, Sep 2, priced at $274 found 1 day ago
Delta
Tue, Aug 12 - Tue, Aug 19
JFK
New York
ONT
Ontario
$275 Roundtrip, just found
$275
Roundtrip
just found
Select Delta flight, departing Tue, Aug 12 from New York to Ontario, returning Tue, Aug 19, priced at $275 just found
American Airlines
Thu, Aug 14 - Sun, Aug 17
JFK
New York
ONT
Ontario
$276 Roundtrip, found 1 hour ago
$276
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Thu, Aug 14 from New York to Ontario, returning Sun, Aug 17, priced at $276 found 1 hour ago
Alaska Airlines
Wed, Oct 15 - Tue, Oct 21
JFK
New York
ONT
Ontario
$277 Roundtrip, found 12 hours ago
$277
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Wed, Oct 15 from New York to Ontario, returning Tue, Oct 21, priced at $277 found 12 hours ago
Delta
Tue, Aug 12 - Tue, Aug 19
JFK
New York
ONT
Ontario
$277 Roundtrip, just found
$277
Roundtrip
just found
Select Delta flight, departing Tue, Aug 12 from New York to Ontario, returning Tue, Aug 19, priced at $277 just found
JetBlue Airways
Mon, Aug 25 - Tue, Sep 23
JFK
New York
ONT
Ontario
$277 Roundtrip, found 11 hours ago
$277
Roundtrip
found 11 hours ago
Select JetBlue Airways flight, departing Mon, Aug 25 from New York to Ontario, returning Tue, Sep 23, priced at $277 found 11 hours ago
Frontier Airlines
Tue, Aug 5 - Tue, Aug 12
JFK
New York
ONT
Ontario
$318 Roundtrip, just found
$318
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Aug 5 from New York to Ontario, returning Tue, Aug 12, priced at $318 just found

Find the cheapest month to fly from New York (JFK) to Ontario (ONT)

September is typically the cheapest month to fly

From $138 - $281 per traveler.

Graph displaying average flight prices per month

Alternative airports near Ontario

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to John Wayne SNA. Average driving time to city center is 42 minutes. Flights from $427
SNA
John Wayne
Average driving time to city center42 min
Flights from $427
Flights from New York (JFK) to Ontario (ONT)
Origin airport
John F. Kennedy Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, United
Roundtrip price
$257
Distance
2422 mi
Average flight time
6 hours 9 mins

New York to Ontario Flights

The cheapest times to fly from New York to Ontario

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from New York to Ontario are during the month of September. You can find some of the cheapest flights from New York to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from New York to Ontario

Sunday is one of the best days to book for cheap flights from New York to Ontario: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from New York to Ontario

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from New York to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $134 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap New York to Ontario flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your New York to Ontario airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from John F. Kennedy Intl. Airport (JFK) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Cheap return fares from John F. Kennedy Intl. Airport (JFK) to Los Angeles - Ontario Intl. Airport (ONT) start at $176. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a JetBlue Airways and Spirit Airlines flight leaving JFK on August 7 2025 and touching down at ONT. The price was last updated on July 21 2025 and has not changed since.
What is the cheapest month to fly from JFK to ONT?
To snag a cheap ticket, search for nonstop flights from JFK to ONT departing in August. You can find a one-way JetBlue Airways flight for $115 leaving on August 31 2025. This price is based on the cheapest direct flight found on Expedia for this route in the next 330 days. The price was last updated on July 21 2025 and remains unchanged.
What is the cheapest airline that flies from JFK to ONT?
At the moment, the cheapest airline offering one-way flights from JFK to ONT is JetBlue Airways. You can book a seat on this route from $115. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from JFK on August 31 2025. Prices were last updated on July 21 2025 and have not changed since.
How many flights per day from John F. Kennedy Intl. Airport (JFK) to Los Angeles - Ontario Intl. Airport (ONT)?
You'll need to book a flight with a layover when traveling from John F. Kennedy Intl. Airport (JFK) to Los Angeles - Ontario Intl. Airport (ONT). There are no daily direct flights on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from JFK to ONT?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change based on a range of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from John F. Kennedy Intl. Airport (JFK) to Los Angeles - Ontario Intl. Airport (ONT)?
To reach Los Angeles - Ontario Intl. Airport (ONT) without delays, opt for a flight that leaves from John F. Kennedy Intl. Airport (JFK) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Ontario from John F. Kennedy Intl. Airport (JFK)?
You'll touch down at Los Angeles Intl. Airport (LAX) or John Wayne Airport (SNA) when traveling to Ontario on a direct flight from John F. Kennedy Intl. Airport (JFK).
Is it cheaper to buy a plane ticket from John F. Kennedy Intl. Airport (JFK) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Last-minute bookings from JFK to ONT are generally more expensive. To secure the best rates, start looking for flights well in advance. That said, if you're flexible with your travel dates, it's possible to score a cheap fare right before your journey.
Is it cheaper to book a JFK to ONT flight and hotel package?
Compared with arranging hotels and flights separately, booking a JFK to ONT flight and hotel package with Expedia could lead to significant savings. What's more, having it all in one place will take the hassle out of travel planning. Simply pick your flights and select from our extensive range of hotels, then personalize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from John F. Kennedy Intl. Airport (JFK) to Los Angeles - Ontario Intl. Airport (ONT)?
In most instances, you can modify or cancel your JFK to ONT flight. However, additional charges may apply, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you want more information, head to our Customer Service portal.

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*Available to One Key members.