Ontario

$96+ 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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — ONT
Oct 15 — Oct 221
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Cheap 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 September 15, 2025.

Round-trip from

$164
(Mytrip)

One-way from

$96
(Cheapflightsfares)

Popular in

December

Cheapest in

January

Average price

$317
From New Jersey to Ontario
One-way flight from New Jersey to Ontario
Highest demand for flights based on searches. 8% potential increase in price ($33 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Average for round-trip flights in September 2025

Find 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 September 15, 2025.

This Mytrip deal was found by Cheapflights users on 9/14. 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 10/316:19 amPHL - ONT
1 stop20h 31mFrontier
Sun 11/25:53 amONT - PHL
1 stop18h 56mFrontier
Deal found 9/14$164
This Booking.com deal was found by Cheapflights users on 9/13. 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 10/236:42 amPHL - ONT
1 stop20h 08mFrontier
Fri 10/316:53 amONT - PHL
1 stop18h 56mFrontier
Deal found 9/13$165
This CheapOair deal was found by Cheapflights users on 9/14. 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 10/1410:55 pmLGA - ONT
1 stop27h 55mFrontier
Tue 10/217:04 amONT - LGA
1 stop11h 56mFrontier
Deal found 9/14$166
This Mytrip deal was found by Cheapflights users on 9/13. 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 9/2710:56 pmLGA - ONT
1 stop11h 27mFrontier
Tue 9/308:59 pmONT - LGA
1 stop22h 12mFrontier
Deal found 9/13$167
This Booking.com deal was found by Cheapflights users on 9/13. 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 10/110:56 pmLGA - ONT
1 stop23h 58mFrontier
Sun 10/58:59 pmONT - LGA
1 stop22h 12mFrontier
Deal found 9/13$168
This Booking.com deal was found by Cheapflights users on 9/13. 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 10/2910:00 pmLGA - ONT
1 stop11h 42mFrontier
Thu 11/136:53 amONT - LGA
1 stop12h 07mFrontier
Deal found 9/13$169
This Booking.com deal was found by Cheapflights users on 9/12. 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 11/510:00 pmLGA - ONT
1 stop11h 42mFrontier
Mon 11/177:54 amONT - LGA
1 stop10h 06mFrontier
Deal found 9/12$171
This Frontier deal was found by Cheapflights users on 9/13. 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 10/46:45 amPHL - ONT
1 stop16h 09mFrontier
Fri 10/108:34 amONT - PHL
1 stop14h 07mFrontier
Deal found 9/13$176
This Frontier deal was found by Cheapflights users on 9/13. 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 10/110:56 pmLGA - ONT
1 stop11h 27mFrontier
Tue 10/77:04 amONT - LGA
1 stop11h 56mFrontier
Deal found 9/13$176
This Frontier deal was found by Cheapflights users on 9/13. 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 11/88:56 pmLGA - ONT
1 stop12h 26mFrontier
Tue 11/116:53 amONT - LGA
1 stop12h 07mFrontier
Deal found 9/13$178
This Gotogate deal was found by Cheapflights users on 9/14. 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.
Thu 9/258:10 amPHL - ONT
1 stop10h 19mFrontier
Thu 10/28:59 pmONT - PHL
1 stop24h 58mFrontier
Deal found 9/14$179
This Frontier deal was found by Cheapflights users on 9/14. 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 11/1310:00 pmLGA - ONT
1 stop12h 29mFrontier
Sun 11/166:53 amONT - LGA
1 stop12h 07mFrontier
Deal found 9/14$179

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 September 15, 2025.
Use the filters below to find and compare flights from New Jersey to Ontario that are best for you.

Fly from

New Jersey

Fly to

Ontario

Route

Depart

Return

Price

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Thu 10/30

10:55 pm-11:50 pm

1 stop27h 55m

Ontario

Sun 11/2

5:53 am-9:00 pm

1 stop12h 07m

$168

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 11/5

10:00 pm-6:42 am

1 stop11h 42m

Ontario

Thu 11/13

6:53 am-10:00 pm

1 stop12h 07m

$169

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Fri 10/3

6:45 am-7:54 pm

1 stop16h 09m

Ontario

Fri 10/10

8:34 am-1:41 am

1 stop14h 07m

$198

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Sat 9/27

6:59 am-12:43 pm

1 stop8h 44m

Ontario

Mon 9/29

2:45 pm-5:30 am

1 stop11h 45m

$198

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Tue 9/30

6:35 pm-9:29 pm

Nonstop5h 54m

Ontario

Tue 10/7

10:56 pm-7:18 am

Nonstop5h 22m

$217

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Sat 9/27

6:35 pm-9:29 pm

Nonstop5h 54m

Ontario

Tue 9/30

10:56 pm-7:18 am

Nonstop5h 22m

$217

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Sat 9/27

6:35 pm-9:29 pm

Nonstop5h 54m

Ontario

Sun 9/28

10:56 pm-7:18 am

Nonstop5h 22m

$227

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Sat 9/27

6:35 pm-9:29 pm

Nonstop5h 54m

Ontario

Mon 9/29

10:56 pm-7:18 am

Nonstop5h 22m

$227

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Thu 10/2

10:56 pm-7:53 am

1 stop11h 57m

Ontario

Sun 10/5

8:59 pm-8:59 pm

2 stops21h 00m

$227

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Tue 10/7

6:35 pm-9:29 pm

Nonstop5h 54m

Ontario

Sat 10/18

10:56 pm-7:18 am

Nonstop5h 22m

$232

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 60 results
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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 $246). Flying from New Jersey 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 NJ to ONT?

Find hourly flight availability from New Jersey 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 September 15, 2025.

When flying from New Jersey to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 5h 54m. Frontier provides one of the quickest options available for as low as $217. 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 Alaska Airlines, with whom users have recently found tickets for as low as $123. However, be on the lookout for offers from JetBlue and Hawaiian 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?

  • 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 $246). Flying from New Jersey 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.

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.

Top 4 airlines flying from New Jersey to Ontario

Discover the top 4 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$116Average$208FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$275Average$397FlexibilityNo cancel feeOn-time71%
DeltaCheapest$276Average$374FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$280Average$405FlexibilityNo cancel feeOn-time69%

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