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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — ONT
Mar 19 — Mar 261
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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 February 17, 2026.

This Trip.com deal was found by Cheapflights users on 2/16. 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 5/73:41 pm
PHL
-
ONT
1 stop10h 43m
Frontier
Mon 5/1112:59 am
ONT
-
PHL
1 stop25h 35m
Frontier
Deal found 2/16$186
This Trip.com deal was found by Cheapflights users on 2/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/248:25 pm
PHL
-
ONT
1 stop30h 30m
Frontier
Tue 4/2812:59 am
ONT
-
PHL
1 stop25h 35m
Frontier
Deal found 2/14$191
This Trip.com deal was found by Cheapflights users on 2/16. 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.
Sat 5/98:25 pm
PHL
-
ONT
1 stop14h 06m
Frontier
Fri 5/1512:59 am
ONT
-
PHL
1 stop25h 35m
Frontier
Deal found 2/16$197
This Frontier deal was found by Cheapflights users on 2/13. 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.
Thu 4/163:41 pm
PHL
-
ONT
1 stop10h 43m
Frontier
Tue 4/212:44 pm
ONT
-
PHL
1 stop11h 29m
Frontier
Deal found 2/13$200
This Booking.com deal was found by Cheapflights users on 2/16. 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 4/98:25 pm
PHL
-
ONT
1 stop30h 31m
Frontier
Mon 4/139:02 pm
ONT
-
PHL
1 stop29h 11m
Frontier
Deal found 2/16$202
This Mytrip deal was found by Cheapflights users on 2/14. 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.
Sun 3/17:15 am
PHL
-
ONT
1 stop10h 14m
Frontier
Wed 3/48:40 am
ONT
-
PHL
1 stop28h 57m
Frontier
Deal found 2/14$206
This Booking.com deal was found by Cheapflights users on 2/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/78:25 pm
PHL
-
ONT
1 stop30h 31m
Frontier
Tue 4/147:29 pm
ONT
-
PHL
1 stop6h 44m
Frontier
Deal found 2/14$207
This Trip.com deal was found by Cheapflights users on 2/16. 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 5/88:25 pm
PHL
-
ONT
1 stop30h 30m
Frontier
Sun 5/108:26 am
ONT
-
PHL
1 stop12h 13m
Frontier
Deal found 2/16$217
This Kiwi.com deal was found by Cheapflights users on 2/16. 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.
Wed 3/255:05 am
PHL
-
ONT
2 stops21h 54m
Frontier
Mon 4/2012:59 am
ONT
-
PHL
1 stop25h 35m
Frontier
Deal found 2/16$219
This Trip.com deal was found by Cheapflights users on 2/15. 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 4/288:25 pm
PHL
-
ONT
1 stop30h 30m
Frontier
Mon 5/1112:59 am
ONT
-
PHL
2 stops30h 39m
Frontier
Deal found 2/15$220
This Frontier deal was found by Cheapflights users on 2/13. 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.
Thu 4/168:25 pm
PHL
-
ONT
1 stop14h 06m
Frontier
Sun 4/195:33 pm
ONT
-
PHL
1 stop9h 01m
Frontier
Deal found 2/13$221
This Kiwi.com deal was found by Cheapflights users on 2/15. 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.
Sat 4/1811:59 am
LGA
-
ONT
1 stop31h 39m
Multiple Airlines
Mon 4/2711:44 am
ONT
-
LGA
2 stops21h 20m
Multiple Airlines
Deal found 2/15$240

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 February 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$186
(Trip.com)

One-way from

$96
(Trip.com)

Popular in

December

Cheapest in

January

Average price

$353
Provider with most accurate pricing for New York (NYC)-Los Angeles flight deals.
Provider most trusted by Cheapflights users for New York (NYC)-Los Angeles flights.
From New Jersey to Ontario
One-way flight from New Jersey to Ontario
Highest demand for flights based on searches. 3% potential increase in price ($13 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in February 2026

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 February 17, 2026.
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

Tue 3/24

6:00 am-11:47 am

1 stop8h 47m

Ontario

Wed 4/1

10:25 pm-9:42 am

1 stop8h 17m

$257

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 4/8

6:05 am-1:30 pm

1 stop10h 25m

Ontario

Wed 4/22

10:40 am-10:45 pm

1 stop9h 05m

$261

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 4/15

2:59 pm-9:00 pm

1 stop9h 01m

Ontario

Wed 4/22

10:15 pm-8:39 am

1 stop7h 24m

$261

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 3/6

1:59 pm-11:49 pm

2 stops12h 50m

Ontario

Wed 3/11

12:57 pm-11:42 pm

1 stop7h 45m

$267

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 3/10

6:00 am-11:47 am

1 stop8h 47m

Ontario

Mon 3/16

10:25 pm-8:40 am

1 stop7h 15m

$267

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 4/22

7:00 am-2:32 pm

1 stop10h 32m

Ontario

Tue 4/28

10:39 am-10:59 pm

1 stop9h 20m

$269

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 4/7

11:10 am-6:50 pm

2 stops10h 40m

Ontario

Tue 4/14

10:30 am-10:45 pm

2 stops9h 15m

$271

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Thu 3/12

8:30 am-3:40 pm

1 stop10h 10m

Ontario

Mon 3/16

5:00 am-5:45 pm

1 stop9h 45m

$272

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Thu 3/12

6:00 am-11:47 am

1 stop8h 47m

Ontario

Mon 3/16

10:25 pm-10:43 am

1 stop9h 18m

$272

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Mon 3/2

2:59 pm-9:05 pm

1 stop9h 06m

Ontario

Tue 3/10

10:25 pm-8:40 am

1 stop7h 15m

$275

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/17

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 $90). Flying from New Jersey to Ontario in December is currently the most expensive (average of $155). 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.

Weekly flight availability from New Jersey to Ontario

Explore weekly flight availability from New Jersey to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 17, 2026.

The most flights from USNJ to ONT are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

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 47m. Delta 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 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?

  • 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 December is currently the most expensive (average of $155). 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

Browse thousands of different options on Cheapflights for your next trip

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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 February 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$116Average$184FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$275Average$363FlexibilityNo cancel feeOn-time71%
DeltaCheapest$276Average$417FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$283Average$388FlexibilityNo cancel feeOn-time69%

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