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218 € Cheap Flights from New York John F. Kennedy to Ontario International

Compare New York John F. Kennedy to Ontario International flight deals

Find the cheapest month or even day of the year to fly to Ontario International

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Flight deals from New York John F. Kennedy to Ontario International

Looking for a cheap last-minute deal or the best return flight from New York John F. Kennedy to Ontario International? Find the lowest prices on one-way and return tickets right here.
Ontario.218 € per passenger.Departing Tue, 21 Apr, returning Thu, 23 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from New York John F. Kennedy on Tue, 21 Apr, arriving in Ontario International.Inbound indirect flight with Delta, departs from Ontario International on Thu, 23 Apr, arriving in New York John F. Kennedy.Price includes taxes and charges.From 218 €, select.
Ontario.218 € per passenger.Departing Wed, 6 May, returning Sat, 9 May.Return flight with Delta.Outbound indirect flight with Delta, departs from New York John F. Kennedy on Wed, 6 May, arriving in Ontario International.Inbound indirect flight with Delta, departs from Ontario International on Sat, 9 May, arriving in New York John F. Kennedy.Price includes taxes and charges.From 218 €, select.
Ontario.255 € per passenger.Departing Thu, 3 Dec, returning Wed, 9 Dec.Return flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from New York John F. Kennedy on Thu, 3 Dec, arriving in Ontario International.Inbound indirect flight with Alaska Airlines, departs from Ontario International on Wed, 9 Dec, arriving in New York John F. Kennedy.Price includes taxes and charges.From 255 €, select.
Ontario.260 € per passenger.Departing Wed, 18 Mar, returning Wed, 25 Mar.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from New York John F. Kennedy on Wed, 18 Mar, arriving in Ontario International.Inbound indirect flight with Frontier Airlines, departs from Ontario International on Wed, 25 Mar, arriving in New York John F. Kennedy.Price includes taxes and charges.From 260 €, select.
Ontario.261 € per passenger.Departing Thu, 20 Aug, returning Mon, 24 Aug.Return flight with jetBlue.Outbound direct flight with jetBlue departs from New York John F. Kennedy on Thu, 20 Aug, arriving in Ontario International.Inbound direct flight with jetBlue departs from Ontario International on Mon, 24 Aug, arriving in New York John F. Kennedy.Price includes taxes and charges.From 261 €, select.
Ontario.268 € per passenger.Departing Thu, 3 Sep, returning Thu, 10 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from New York John F. Kennedy on Thu, 3 Sep, arriving in Ontario International.Inbound indirect flight with Delta, departs from Ontario International on Thu, 10 Sep, arriving in New York John F. Kennedy.Price includes taxes and charges.From 268 €, select.
Ontario.268 € per passenger.Departing Thu, 27 Aug, returning Sun, 6 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from New York John F. Kennedy on Thu, 27 Aug, arriving in Ontario International.Inbound indirect flight with Delta, departs from Ontario International on Sun, 6 Sep, arriving in New York John F. Kennedy.Price includes taxes and charges.From 268 €, select.
Ontario.289 € per passenger.Departing Fri, 12 Jun, returning Fri, 19 Jun.Return flight with jetBlue.Outbound direct flight with jetBlue departs from New York John F. Kennedy on Fri, 12 Jun, arriving in Ontario International.Inbound direct flight with jetBlue departs from Ontario International on Fri, 19 Jun, arriving in New York John F. Kennedy.Price includes taxes and charges.From 289 €, select.

Find the cheapest month to fly from New York John F. Kennedy to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like New York John F. Kennedy to Ontario International flights are currently cheapest in April.
Mar
from 260 €
Apr
from 218 €
May
from 218 €
Jun
from 289 €
Jul
from 421 €
Aug
from 261 €
Sep
from 268 €
Oct
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Nov
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Dec
from 255 €
Jan
Find prices
Feb
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Direct flights from New York John F. Kennedy to Ontario International

New York John F. Kennedy to Ontario International: Alternative routes

Compare routes from New York John F. Kennedy to Ontario below. You may find an airport to fly into that's cheaper, faster, or easier than Ontario International.

Ontario International

4km from central Ontario
Closest
from 218 €
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San Bernardino Norton AFB

39km from central Ontario
from 395 €
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Santa Ana John Wayne

48km from central Ontario
from 219 €
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Long Beach Municipal

54km from central Ontario
from 435 €
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Hawthorne

65km from central Ontario
from 529 €
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Burbank

67km from central Ontario
from 181 €
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Los Angeles International

71km from central Ontario
Cheapest
from 167 €
Search flights

New York to Ontario: Flight information

The things to know before you go.
Cheapest flight found218 €
Cheapest month to flyApril
Average flight time6 hrs, 6 mins
Most popular airlineEtihad Airways
Average flights per week25

Finding cheap flights from New York John F. Kennedy to Ontario International: Frequently asked questions

The best price we found for a return flight from New York John F. Kennedy to Ontario International is 218 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
6 hours and 6 minutes is the average flight time from New York John F. Kennedy to Ontario International.
Etihad Airways, jetBlue and Turkish Airlines fly direct from New York John F. Kennedy to Ontario International.
As of March 2026, there are 25 flights per week flying from New York John F. Kennedy to Ontario International.
The cheapest month to fly from New York John F. Kennedy to Ontario International is usually April.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from New York John F. Kennedy Airport to Ontario International Airport on Tuesday, 21 April 2026.
Yes – the average flight time is 6 hours and 6 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ontario International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ontario is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta and jetBlue offer the cheapest flight tickets to Ontario International.

Travelling from John F. Kennedy International Airport (JFK) to Ontario International Airport (ONT): what you need to know

  • Around 6 hours 5 minutes is how long you'll be travelling on a direct flight from John F. Kennedy International Airport to Ontario International Airport.

  • The timezone in Ontario is UTC-7, which is three hours behind New York.

  • Each week, there are three John F. Kennedy International Airport to Ontario International Airport flights. If you'd like to take off as soon as possible, go for the 18:59 JetBlue Airways flight. If you'd rather make the most of your day before you fly, the last departure is at 19:40 with JetBlue Airways.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Make sure you're at the airport on time to catch your JFK to ONT flight.

  • Travelling during a peak time like July? Public holidays and other high seasons can result in longer lines and delays at airport checkpoints. Be extra cautious and get there up to four hours ahead of international flights and two hours before a domestic departure.

  • Getting to Ontario (and then exploring more of United States!) is easy with JetBlue Airways. This popular carrier has direct flights from John F. Kennedy International Airport to Ontario International Airport.

  • JetBlue Airways has the highest passenger demand on this route.

  • If you want to add a stop to your trip, simply uncheck 'Direct flights only' when searching for your ticket from John F. Kennedy International Airport to Ontario International Airport. Here are the top stopovers between JFK and ONT:

    • Harry Reid Airport (formerly McCarran Airport)

    • Salt Lake City International Airport

    • Phoenix Sky Harbour International Airport

How to find the cheapest flights from John F. Kennedy International Airport (JFK) to Ontario International Airport (ONT)

  • Right now, 95 € is the lowest price we've found for a one-way John F. Kennedy International Airport to Ontario International Airport flight. The best price for a return ticket is 218 €. Bear in mind that fares could change due to demand at the time of booking.

  • Book six months before travelling. After crunching the numbers on our calendar, this is how far you'll want to book ahead to find cheap tickets from JFK to ONT.

  • May is the cheapest month for flights from John F. Kennedy International Airport to Ontario International Airport. If you need to travel during a different time of year, the 'Whole month' tool will give you the lowest prices for each month.

  • You won't have to check back in every day to see if fares have gone down when you set up a Price Alert. We'll update you as soon as there's a change in price on cheap flights from JFK to ONT.

  • Lock in the ideal flight for you by using the filters. To see the 'Cheapest,' 'Fastest' or 'Best' flights from John F. Kennedy International Airport to Ontario International Airport, use the 'Sort by' tool. You can also filter results by airline, departure and arrival times, and number of stops.

Handy information about John F. Kennedy International Airport (JFK)

  • The address for JFK is JFK Airport.

  • 74.1% of flights that leave from John F. Kennedy International Airport touch down at their destination on time.

  • John F. Kennedy International Airport is around 48 kilometres from central New York. If you're driving, ride-sharing or catching a cab from the centre, it'll take you 50 minutes or so to get there, depending on the traffic.

  • Expect a journey time of roughly 1 hour 20 minutes when using public transport.

  • Need a handy hotel close to JFK? If you're boarding an early flight from John F. Kennedy International Airport to Ontario International Airport, these stays will have you moments from your departure lounge:

Arriving at Ontario International Airport (ONT)

Getting from Ontario International Airport (ONT) to central Ontario

  • The address for ONT is 2900 E. Airport Drive.

  • From Ontario International Airport, Ontario is approximately 6 kilometres away. It takes around 10 minutes to reach the centre driving.

  • If you're travelling by public transport, expect a journey of about 1 hour 30 minutes.

When to fly to Ontario International Airport (ONT)

  • The quietest month for a flight from John F. Kennedy International Airport to Ontario International Airport is May, while August is the busiest. Pick the best time to visit Ontario based on whether you prefer a more relaxed vibe or a faster pace.

  • The warmest month in Ontario is August, with temperatures ranging between 15ºC (59ºF) and 35ºC (95ºF). Book your flights from John F. Kennedy International Airport to Ontario International Airport in this month if this is the kind of weather you like.

  • January sees average temperatures of between 4ºC (39ºF) and 23ºC (73ºF). Look for cheap tickets from JFK to ONT around that time if you want to travel in cooler conditions.

Explore more of United States

  • Los Angeles is just one of the many cities in United States waiting to be discovered once you've seen Ontario. Around 56 kilometres away to the west, top sights here include Griffith Observatory, The Broad and La Brea Tar Pits & Museum.

  • San Diego is another standout destination in United States and is around 153 kilometres south of Ontario. No trip is complete without dropping by San Diego Zoo, USS Midway Museum and SeaWorld San Diego.

Plan the rest of your trip from New York to Ontario

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.