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$91+ 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — ONT
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
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 December 28, 2025.

This Frontier deal was found by Cheapflights users on 12/26. 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 12/314:29 pmJFK - ONT
1 stop10h 30mFrontier
Mon 1/56:00 pmONT - JFK
1 stop8h 29mFrontier
Deal found 12/26$353
This Frontier deal was found by Cheapflights users on 12/26. 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 12/3110:00 pmLGA - ONT
1 stop13h 53mFrontier
Wed 1/77:00 amONT - LGA
1 stop12h 00mFrontier
Deal found 12/26$353
This CheapOair deal was found by Cheapflights users on 12/26. 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 12/307:10 amPHL - ONT
1 stop13h 12mFrontier
Mon 1/56:00 pmONT - PHL
1 stop8h 40mFrontier
Deal found 12/26$354
This CheapOair deal was found by Cheapflights users on 12/26. 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.
Mon 12/294:29 pmJFK - ONT
1 stop10h 30mFrontier
Wed 1/710:45 amONT - JFK
1 stop16h 45mFrontier
Deal found 12/26$354
This Frontier deal was found by Cheapflights users on 12/26. 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 12/2710:01 pmPHL - ONT
1 stop12h 23mFrontier
Mon 1/56:00 pmONT - PHL
1 stop8h 40mFrontier
Deal found 12/26$373
This Frontier deal was found by Cheapflights users on 12/26. 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.
Mon 12/297:10 amPHL - ONT
1 stop13h 05mFrontier
Mon 1/56:00 pmONT - PHL
1 stop8h 40mFrontier
Deal found 12/26$383
This Frontier deal was found by Cheapflights users on 12/26. 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 12/306:59 amJFK - ONT
1 stop13h 23mFrontier
Sat 1/103:21 pmONT - JFK
1 stop12h 09mFrontier
Deal found 12/26$383
This CheapOair deal was found by Cheapflights users on 12/26. 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.
Mon 12/294:29 pmJFK - ONT
1 stop10h 30mFrontier
Mon 1/56:00 pmONT - JFK
1 stop8h 29mFrontier
Deal found 12/26$384
This CheapOair deal was found by Cheapflights users on 12/26. 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.
Sun 12/287:10 amPHL - ONT
1 stop17h 17mFrontier
Fri 1/98:31 amONT - PHL
1 stop12h 57mFrontier
Deal found 12/26$388
This CheapOair deal was found by Cheapflights users on 12/26. 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.
Sat 12/2710:55 pmLGA - ONT
1 stop28h 04mFrontier
Thu 1/88:31 amONT - LGA
1 stop9h 34mFrontier
Deal found 12/26$404
This Frontier deal was found by Cheapflights users on 12/26. 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 12/316:59 amJFK - ONT
1 stop13h 16mFrontier
Tue 1/64:04 pmONT - JFK
1 stop11h 26mFrontier
Deal found 12/26$407
This CheapOair deal was found by Cheapflights users on 12/26. 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 12/307:10 amPHL - ONT
1 stop13h 12mFrontier
Sat 1/36:45 amONT - PHL
1 stop19h 46mFrontier
Deal found 12/26$408

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 December 28, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$182
(Frontier)

One-way from

$91
(Frontier)

Popular in

December

Cheapest in

January

Average price

$476
Provider with most accurate pricing for New York (NYC)-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for New York (NYC)-Los Angeles flights.
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From New Jersey to Ontario
Search Deals
One-way flight from New Jersey to Ontario
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 28, 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

JFK - ONT

JFKONT

New York John F Kennedy Intl

Thu 2/26

5:00 pm-11:52 pm

1 stop9h 52m

Ontario

Sat 2/28

6:14 am-7:10 pm

1 stop9h 56m

$253

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 2/4

7:00 am-3:08 pm

1 stop11h 08m

Ontario

Fri 2/6

6:00 am-7:28 pm

1 stop10h 28m

$253

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Thu 1/29

4:22 pm-11:56 pm

1 stop10h 34m

Ontario

Fri 1/30

6:00 am-7:28 pm

1 stop10h 28m

$256

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Thu 2/5

7:00 am-3:08 pm

1 stop11h 08m

Ontario

Fri 2/6

6:00 am-7:28 pm

1 stop10h 28m

$256

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Fri 1/30

4:22 pm-11:56 pm

1 stop10h 34m

Ontario

Mon 2/2

6:00 am-7:28 pm

1 stop10h 28m

$256

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Thu 1/29

4:22 pm-11:56 pm

1 stop10h 34m

Ontario

Mon 2/2

6:00 am-7:28 pm

1 stop10h 28m

$256

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 1/27

6:00 am-11:31 am

1 stop8h 31m

Ontario

Tue 1/27

10:30 pm-8:48 am

1 stop7h 18m

$257

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 2/4

1:00 pm-9:05 pm

1 stop11h 05m

Ontario

Wed 2/18

10:20 pm-1:12 pm

2 stops11h 52m

$262

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Thu 1/22

2:59 pm-9:05 pm

1 stop9h 06m

Ontario

Wed 1/28

6:00 am-7:05 pm

2 stops10h 05m

$262

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 3/4

2:59 pm-9:05 pm

1 stop9h 06m

Ontario

Mon 3/9

10:25 pm-12:11 pm

2 stops10h 46m

$262

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

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, December is the cheapest month in which you can book a flight from New Jersey to Ontario (average of $84). Flying from New Jersey to Ontario in April is currently the most expensive (average of $144). 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.

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 8h 31m. Alaska Airlines provides one of the quickest options available for as low as $257. There are 2417 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 most popular routes from New Jersey to Ontario?

    Most travelers choose Newark - Ontario, New York John F Kennedy Intl - 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, December is the cheapest month in which you can book a flight from New Jersey to Ontario (average of $84). Flying from New Jersey to Ontario in April is currently the most expensive (average of $144). 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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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 December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$116Average$184FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$276Average$370FlexibilityNo cancel feeOn-time71%
DeltaCheapest$276Average$419FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$280Average$387FlexibilityNo cancel feeOn-time69%

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