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Ontario

$76+ Cheap flights from New Jersey 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — ONT
May 2 — May 91
Sat 5/2
Sat 5/9
1 adult, Economy
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Cheap flight deals from New Jersey to Ontario

Cheapest flights from New Jersey to Ontario
Explore the most affordable flight options available from New Jersey to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2026.

This Frontier deal was found by Cheapflights users on 3/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/238:41 pm
PHL
-
ONT
1 stop13h 50m
Frontier
Mon 4/275:33 pm
ONT
-
PHL
1 stop9h 01m
Frontier
Deal found 3/31$160
This Trip.com deal was found by Cheapflights users on 3/31. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/233:41 pm
PHL
-
ONT
1 stop11h 14m
Frontier
Tue 4/2812:59 am
ONT
-
PHL
1 stop25h 35m
Frontier
Deal found 3/31$161
This Booking.com deal was found by Cheapflights users on 3/31. 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.
Thu 4/233:41 pm
PHL
-
ONT
1 stop11h 14m
Frontier
Sat 4/2512:59 am
ONT
-
PHL
1 stop25h 35m
Frontier
Deal found 3/31$162
This Booking.com deal was found by Cheapflights users on 3/31. 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.
Fri 4/246:43 am
PHL
-
ONT
1 stop17h 21m
Frontier
Mon 4/275:33 pm
ONT
-
PHL
1 stop9h 01m
Frontier
Deal found 3/31$167
This CheapOair deal was found by Cheapflights users on 3/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/218:00 am
PHL
-
ONT
1 stop13h 49m
Frontier
Thu 4/2311:47 am
ONT
-
PHL
1 stop14h 26m
Frontier
Deal found 3/31$171
This Booking.com deal was found by Cheapflights users on 3/31. 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 5/137:00 am
PHL
-
ONT
1 stop27h 35m
Frontier
Fri 5/158:06 pm
ONT
-
PHL
1 stop16h 10m
Frontier
Deal found 3/31$172
This Trip.com deal was found by Cheapflights users on 3/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/128:35 pm
PHL
-
ONT
1 stop16h 30m
Frontier
Tue 5/198:06 pm
ONT
-
PHL
1 stop16h 10m
Frontier
Deal found 3/28$176
This Frontier deal was found by Cheapflights users on 4/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/218:00 am
PHL
-
ONT
1 stop13h 49m
Frontier
Tue 5/58:30 am
ONT
-
PHL
1 stop10h 54m
Frontier
Deal found 4/1$180
This Frontier deal was found by Cheapflights users on 3/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/610:40 am
PHL
-
ONT
1 stop8h 04m
Frontier
Sat 5/94:04 pm
ONT
-
PHL
1 stop11h 48m
Frontier
Deal found 3/31$185
This Frontier deal was found by Cheapflights users on 3/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/28:41 pm
PHL
-
ONT
1 stop13h 45m
Frontier
Sat 5/94:04 pm
ONT
-
PHL
1 stop11h 48m
Frontier
Deal found 3/31$187
This Trip.com deal was found by Cheapflights users on 4/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/178:36 pm
PHL
-
ONT
1 stop30h 19m
Frontier
Mon 4/2712:59 am
ONT
-
PHL
1 stop25h 35m
Frontier
Deal found 4/1$188
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/282:55 pm
EWR
-
ONT
1 stop22h 49m
Multiple Airlines
Sat 5/27:44 pm
ONT
-
EWR
1 stop7h 46m
Multiple Airlines
Deal found 4/1$218

Find flight deals from New Jersey to Ontario

Keep the following information in mind while searching for New Jersey to Ontario flight deals. Data was last updated April 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$160
(Frontier)

One-way from

$76
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$386
Provider with most accurate pricing for New York (NYC)-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-Los Angeles flights.
Search Deals
From New Jersey to Ontario
Search Deals
One-way flight from New Jersey to Ontario
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from New Jersey 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 2, 2026.
Use the filters below to find and compare flights from New Jersey to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Tue 6/30

7:30 pm-10:38 pm

Nonstop6h 08m

Ontario

Wed 7/8

11:50 pm-8:11 am

Nonstop5h 21m

$277

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 4/15

3:55 pm-9:00 pm

1 stop8h 05m

Ontario

Wed 4/22

12:49 pm-12:48 am

1 stop8h 59m

$294

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Sat 4/18

2:55 pm-9:00 pm

1 stop9h 05m

Ontario

Sat 4/25

10:15 pm-10:15 am

1 stop9h 00m

$308

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Thu 4/23

6:00 am-1:15 pm

1 stop10h 15m

Ontario

Mon 4/27

11:55 pm-12:35 pm

1 stop9h 40m

$317

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 4/15

9:20 am-4:25 pm

2 stops10h 05m

Ontario

Fri 4/17

10:15 pm-9:39 am

1 stop8h 24m

$325

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 4/24

8:55 am-4:25 pm

2 stops10h 30m

Ontario

Mon 4/27

8:00 am-8:25 pm

2 stops9h 25m

$327

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Tue 4/14

4:29 pm-11:59 pm

1 stop10h 30m

Ontario

Tue 4/28

6:00 am-7:11 pm

1 stop10h 11m

$333

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 4/15

3:05 pm-11:44 pm

2 stops11h 39m

Ontario

Sat 4/18

6:00 am-7:05 pm

2 stops10h 05m

$343

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 5/1

4:00 pm-9:00 pm

1 stop8h 00m

Ontario

Fri 5/8

10:00 pm-9:45 am

1 stop8h 45m

$353

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Sat 5/9

5:17 am-10:57 am

1 stop8h 40m

Ontario

Sat 5/16

10:00 pm-9:27 am

1 stop8h 27m

$355

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from New Jersey to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from New Jersey 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 Jersey to Ontario

What is the cheapest month to book a flight from New Jersey to Ontario?

Currently, August is the cheapest month in which you can book a flight from New Jersey to Ontario (average of $90). Flying from New Jersey to Ontario in March is currently the most expensive (average of $174). 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 Jersey to Ontario?

Related info for your journey

Find useful and relevant information for your journey from New Jersey 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 Jersey?

    If you book a flight to Ontario from New Jersey, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario.

  • How long is the flight from New Jersey to Ontario?

    A quick flight from New Jersey to Ontario can take about 6h 08m. JetBlue provides one of the quickest options available for as low as $277. There are 2422 mi between New Jersey and Ontario. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from New Jersey to Ontario one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $97. However, be on the lookout for offers from United Airlines and Alaska Airlines, as they are both options that can get you from New Jersey to Ontario for a low price.

  • What are the most popular routes from New Jersey to Ontario?

    Most travelers choose New York John F Kennedy Intl - Ontario, Newark - Ontario or New York LaGuardia - Ontario when deciding on the best route from New Jersey to Ontario.

  • Can I find deals for flights from New Jersey to Ontario that include hotel bookings?

    Yes. In addition to deals on New Jersey to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from New Jersey to Ontario?

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

  • Can I find deals for business class flights from New Jersey to Ontario?

    Yes. Cheapflights offers flight deals from New Jersey 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 Jersey to Ontario?

    Currently, August is the cheapest month in which you can book a flight from New Jersey to Ontario (average of $90). Flying from New Jersey to Ontario in March is currently the most expensive (average of $174). 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

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Alternative routes for New Jersey to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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John F Kennedy Intl to San Francisco flights
LaGuardia to San Francisco flights
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Top 3 airlines flying from New Jersey to Ontario

Discover the top 3 airlines that operate flights from New Jersey 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 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$276Average$360FlexibilityNo cancel feeOn-time71%
DeltaCheapest$276Average$432FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$286Average$459FlexibilityNo cancel feeOn-time69%

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