$156+ Cheap flights from John F Kennedy Intl, NY (JFK) to Ontario (ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
JFK — ONT
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from John F Kennedy Intl to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from New York John F Kennedy Intl to Ontario are usually found in January or July, booked 32 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday
Cheap flight deals from John F Kennedy Intl to Ontario
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Best
Last-minute
One-way
Cheapest flights from John F Kennedy Intl to OntarioExplore 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 October 25, 2026.
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 October 25, 2026.
This Delta deal was found by Cheapflights users on 10/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/711:30 am -
1 stop11h 00m
Fri 11/1311:10 pm -
1 stop8h 19m
Deal found 10/22![Delta logo]()
$327
This Flightnetwork deal was found by Cheapflights users on 10/23. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/57:00 am -
2 stops12h 56m
Sat 12/126:00 am -
1 stop13h 59m
Deal found 10/23![Alaska Airlines logo]()
$330
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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 12/54:35 pm -
1 stop10h 19m
Mon 12/77:10 am -
1 stop8h 54m
Deal found 10/21![Alaska Airlines logo]()
$332
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
Thu 12/37:00 am -
2 stops12h 56m
Mon 12/75:01 pm -
1 stop10h 59m
Deal found 10/21![Alaska Airlines logo]()
$335
This Flightnetwork deal was found by Cheapflights users on 10/21. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:00 am -
2 stops12h 56m
Wed 12/96:00 am -
1 stop13h 59m
Deal found 10/21![Alaska Airlines logo]()
$336
Best flights from John F Kennedy Intl to OntarioDiscover carefully curated flight deals from John F Kennedy Intl to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from John F Kennedy Intl to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/23. 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.
Mon 1/117:00 am -
1 stop11h 20m
Wed 1/207:10 am -
1 stop9h 13m
Deal found 10/23![Alaska Airlines logo]()
$332
This Delta deal was found by Cheapflights users on 10/24. 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.
Tue 11/106:00 am -
1 stop8h 03m
Fri 11/1311:10 pm -
1 stop8h 19m
Deal found 10/24![Delta logo]()
$347
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
Thu 11/127:00 am -
1 stop11h 13m
Mon 11/167:13 pm -
1 stop9h 12m
Deal found 10/21![Alaska Airlines logo]()
$332
This Delta deal was found by Cheapflights users on 10/25. 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.
Sat 12/56:35 am -
1 stop8h 42m
Sat 12/121:11 pm -
1 stop7h 53m
Deal found 10/25![Delta logo]()
$347
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/44:30 pm -
2 stops27h 26m
Mon 12/75:01 pm -
1 stop10h 59m
Deal found 10/22![Alaska Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 10/24. 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.
Wed 11/186:48 pm -
1 stop8h 01m
Mon 12/141:11 pm -
1 stop7h 53m
Deal found 10/24![Delta logo]()
$347
This Alaska Airlines deal was found by Cheapflights users on 10/23. 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.
Fri 1/154:40 pm -
2 stops27h 42m
Tue 1/197:10 am -
1 stop9h 13m
Deal found 10/23![Alaska Airlines logo]()
$357
This Delta deal was found by Cheapflights users on 10/24. 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 11/54:25 pm -
1 stop8h 46m
Wed 11/111:15 pm -
1 stop7h 40m
Deal found 10/24![Delta logo]()
$433
This Alaska Airlines deal was found by Cheapflights users on 10/20. 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 1/191:00 pm -
1 stop12h 41m
Thu 1/217:10 am -
1 stop9h 13m
Deal found 10/20![Alaska Airlines logo]()
$397
This Alaska Airlines deal was found by Cheapflights users on 10/24. 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.
Wed 11/47:00 am -
1 stop11h 13m
Mon 11/97:13 pm -
1 stop9h 12m
Deal found 10/24![Alaska Airlines logo]()
$422
This Alaska Airlines deal was found by Cheapflights users on 10/20. 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.
Thu 12/37:00 am -
1 stop12h 05m
Mon 12/145:01 pm -
1 stop10h 59m
Deal found 10/20![Alaska Airlines logo]()
$427
This Alaska Airlines deal was found by Cheapflights users on 10/24. 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.
Sun 11/87:00 am -
1 stop11h 13m
Mon 11/97:13 pm -
1 stop9h 12m
Deal found 10/24![Alaska Airlines logo]()
$463
Last-minute flights from John F Kennedy Intl to OntarioDiscover last-minute flight deals from John F Kennedy Intl to Ontario. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from John F Kennedy Intl to Ontario. Data last updated October 25, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/711:30 am -
1 stop11h 00m
Fri 11/1311:10 pm -
1 stop8h 19m
Deal found 10/22![Delta logo]()
$327
This Mytrip deal was found by Cheapflights users on 10/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:31 pm -
1 stop19h 47m
Thu 11/126:00 am -
1 stop13h 55m
Deal found 10/22![Alaska Airlines logo]()
$345
This Gotogate deal was found by Cheapflights users on 10/21. 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.
Mon 11/96:31 pm -
1 stop19h 47m
Wed 11/116:00 am -
1 stop13h 55m
Deal found 10/21![Alaska Airlines logo]()
$346
This Gotogate deal was found by Cheapflights users on 10/20. 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.
Tue 11/107:00 am -
1 stop11h 13m
Wed 11/186:00 am -
1 stop13h 55m
Deal found 10/20![Alaska Airlines logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
Thu 11/127:00 am -
1 stop11h 13m
Mon 11/167:13 pm -
1 stop9h 12m
Deal found 10/21![Alaska Airlines logo]()
$332
This Delta deal was found by Cheapflights users on 10/24. 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.
Wed 11/186:48 pm -
1 stop8h 01m
Tue 12/151:11 pm -
1 stop7h 53m
Deal found 10/24![Delta logo]()
$347
This American Airlines deal was found by Cheapflights users on 10/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:00 am -
1 stop8h 45m
Tue 12/110:30 pm -
1 stop9h 41m
Deal found 10/22![American Airlines logo]()
$338
One-way flights from John F Kennedy Intl to OntarioSearch for one-way flight options from John F Kennedy Intl to Ontario. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from John F Kennedy Intl to Ontario. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Mytrip deal was found by Cheapflights users on 10/21. 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 11/146:31 pm -
1 stop19h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Alaska Airlines logo]()
$156
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Sat 12/1210:30 am -
2 stops10h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![American Airlines logo]()
$158
This Delta deal was found by Cheapflights users on 10/20. 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.
Tue 12/156:45 pm -
1 stop8h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Delta logo]()
$159
This Mytrip deal was found by Cheapflights users on 10/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:31 pm -
1 stop19h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Alaska Airlines logo]()
$161
This Flightnetwork deal was found by Cheapflights users on 10/21. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/131:00 pm -
1 stop13h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Alaska Airlines logo]()
$163
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Sun 11/227:00 am -
1 stop8h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![American Airlines logo]()
$169
This CheapTickets.ch deal was found by Cheapflights users on 10/21. 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 CheapTickets.ch is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/231:00 pm -
1 stop12h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Alaska Airlines logo]()
$170
This American Airlines deal was found by Cheapflights users on 10/21. 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 12/166:40 am -
1 stop9h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![American Airlines logo]()
$172
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:00 am -
1 stop11h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Alaska Airlines logo]()
$174
This American Airlines deal was found by Cheapflights users on 10/21. 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.
Sat 11/1410:40 am -
2 stops10h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![American Airlines logo]()
$177
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
Sun 3/146:30 pm -
1 stop19h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Alaska Airlines logo]()
$179
Find 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 October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $327 (Delta) |
One-way from | $156 (Mytrip) |
Popular in | December |
Cheapest in | January |
Average price | $371 |
Good round-trip deal | $557 or less |
Good one-way deal | $278 or less |
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 7,457,451 searches. Data last updated October 25, 2026.
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
Fly to
Route
Depart
Return
Cheapest round-trip
New YorkOntario
JFK New York John F Kennedy Intl - ONT Ontario
JFKONT
New York John F Kennedy Intl
Tue 11/17
6:40 am-12:17 pm
1 stop8h 37m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$174
New YorkOntario
JFK New York John F Kennedy Intl - ONT Ontario
JFKONT
New York John F Kennedy Intl
Mon 11/23
7:10 am-5:16 pm
1 stop13h 06m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$174
New YorkOntario
JFK New York John F Kennedy Intl - ONT Ontario
JFKONT
New York John F Kennedy Intl
Wed 11/4
6:00 am-12:36 pm
1 stop9h 36m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$174
Quickest round-trip
New YorkOntario
JFK New York John F Kennedy Intl - ONT Ontario
JFKONT
New York John F Kennedy Intl
Sat 11/14
6:00 am-11:03 am
1 stop8h 03m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$174
New YorkOntario
JFK New York John F Kennedy Intl - ONT Ontario
JFKONT
New York John F Kennedy Intl
Sun 11/1
6:00 am-12:36 pm
1 stop9h 36m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$229
New YorkOntario
JFK New York John F Kennedy Intl - ONT Ontario
JFKONT
New York John F Kennedy Intl
Sun 11/8
8:28 am-3:35 pm
1 stop10h 07m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$255
New YorkOntario
JFK New York John F Kennedy Intl - ONT Ontario
JFKONT
New York John F Kennedy Intl
Mon 12/14
7:00 am-4:05 pm
1 stop12h 05m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$279
New YorkOntario
JFK New York John F Kennedy Intl - ONT Ontario
JFKONT
New York John F Kennedy Intl
Sun 11/22
4:35 pm-11:49 pm
1 stop10h 14m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$310
New YorkOntario
JFK New York John F Kennedy Intl - ONT Ontario
JFKONT
New York John F Kennedy Intl
Sun 11/15
6:00 am-11:03 am
1 stop8h 03m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$310
New YorkOntario
JFK New York John F Kennedy Intl - ONT Ontario
JFKONT
New York John F Kennedy Intl
Tue 1/12
7:00 am-5:22 pm
2 stops13h 22m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$312
Showing 1-10 of 24 resultsSorted by cheapest first
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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on New York John F Kennedy Intl Airport-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on New York John F Kennedy Intl Airport-Ontario flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.
JFK-ONT
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
Prices
More
How far ahead should I book a flight from New York John F Kennedy Intl Airport to Ontario?
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 31 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, January is the cheapest month in which you can book a flight from New York John F Kennedy Intl Airport to Ontario (average of $294). Flying from New York John F Kennedy Intl Airport to Ontario in December is currently the most expensive (average of $696). 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.
How much does it cost to fly round-trip from New York John F Kennedy Intl Airport to Ontario?
Airfare is typical for this route at the moment.
New York John F Kennedy Intl Airport to Ontario flights typically cost between $326 and $520 in November.The cheapest round-trip price found within the last 5 days was $327 on Delta (Nov 7-Nov 13).
What’s the top layover airport for flights from New York John F Kennedy Intl Airport to Ontario?
Share of 1-stop round-trip flights from New York John F Kennedy Intl Airport to Ontario chosen by Cheapflights users in the past 12 months, using the same layover each way.
Phoenix (PHX) – chosen by Cheapflights users on 50% of 1-stop itineraries from New York John F Kennedy Intl Airport to Ontario on Cheapflights.
What’s the cheapest layover airport for flights from New York John F Kennedy Intl Airport to Ontario?
Average round-trip fare for 1-stop flights from New York John F Kennedy Intl Airport to Ontario, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Phoenix (PHX) is the most affordable 1-stop option, with an average round-trip price of $317.
What’s the fastest layover option from New York John F Kennedy Intl Airport to Ontario?
Shortest average travel time for 1-stop one-way flights from New York John F Kennedy Intl Airport to Ontario, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Phoenix (PHX) have the shortest average one-way travel time for 1-stop routes: 8h 10m.
Which airport typically offers the quickest layover for flights from New York John F Kennedy Intl Airport to Ontario?
Average layover duration for 1-stop one-way flights from New York John F Kennedy Intl Airport to Ontario, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Phoenix (PHX) offer the fastest connection on this route, with an average layover time of 1h 03m.
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 October 25, 2026.
Read through reviews of airlines operating flights from New York John F Kennedy Intl Airport to Ontario, such as Delta,JetBlue, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Boarding
8.1
Comfort
7.8
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Boarding
8.1
Comfort
7.8
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Boarding
8.1
Comfort
7.8
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Boarding
8.1
Comfort
7.8
Overall
7.8
Crew
8.5
Food
7.2
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
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.
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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 7,457,451 searches. Data last updated October 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$71 | Average$297 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$128 | Average$326 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$238 | Average$355 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$262 | Average$469 | FlexibilityNo cancel fee | On-time71% |