HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$84+ 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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — ONT
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from New Jersey 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.

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 April 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$237
(Flightnetwork)

One-way from

$84
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$394
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. 3% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 2, 2025.

This Flightnetwork 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/46:59 amJFK - ONT
1 stop27h 25mFrontier
Sun 5/1110:15 pmONT - JFK
1 stop28h 15mFrontier
Deal found 4/1$237
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.
Thu 4/2412:40 pmPHL - ONT
1 stop14h 19mFrontier
Mon 4/282:42 pmONT - PHL
1 stop13h 05mFrontier
Deal found 4/1$238
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/227:20 amJFK - ONT
1 stop11h 12mAlaska Airlines
Tue 5/64:29 pmONT - JFK
1 stop10h 31mAlaska Airlines
Deal found 4/1$262
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.
Wed 4/2310:08 pmPHL - ONT
1 stop20h 27mMultiple Airlines
Sat 5/31:15 pmONT - PHL
1 stop14h 37mMultiple Airlines
Deal found 4/1$262
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.
Tue 4/1510:59 pmLGA - ONT
1 stop14h 22mFrontier
Mon 4/216:03 pmONT - LGA
1 stop24h 57mFrontier
Deal found 4/1$263
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/36:15 pmJFK - ONT
Nonstop6h 10mJetBlue
Sat 5/1010:59 pmONT - JFK
Nonstop5h 20mJetBlue
Deal found 4/1$267
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/304:17 pmLGA - ONT
1 stop8h 53mAmerican Airlines
Sat 5/36:00 amONT - LGA
1 stop7h 04mAmerican Airlines
Deal found 4/1$267
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/76:00 amEWR - ONT
1 stop9h 24mUnited Airlines
Wed 5/141:45 pmONT - EWR
1 stop8h 13mUnited Airlines
Deal found 4/1$267
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/164:00 pmEWR - ONT
1 stop10h 59mAlaska Airlines
Tue 9/233:00 pmONT - EWR
1 stop11h 59mAlaska Airlines
Deal found 4/1$269
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/255:59 amEWR - ONT
1 stop10h 50mAmerican Airlines
Sat 5/107:25 pmONT - EWR
1 stop7h 35mAmerican Airlines
Deal found 3/31$272
This Delta deal was found by Cheapflights users on 4/2. 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 4/196:00 amLGA - ONT
1 stop7h 57mDelta
Wed 4/2312:07 pmONT - LGA
1 stop7h 32mDelta
Deal found 4/2$277
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/197:00 amEWR - ONT
1 stop8h 16mDelta
Tue 4/2910:15 pmONT - EWR
1 stop7h 44mDelta
Deal found 4/1$277

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, 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

Sun 5/4

6:59 am-7:24 am

1 stop27h 25m

Ontario

Sun 5/11

10:15 pm-5:30 am

1 stop28h 15m

$237

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Thu 4/24

12:40 pm-11:59 pm

1 stop14h 19m

Ontario

Sun 4/27

8:45 pm-6:47 am

1 stop7h 02m

$238

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Tue 4/22

7:20 am-3:32 pm

1 stop11h 12m

Ontario

Sat 5/3

4:29 pm-6:00 am

1 stop10h 31m

$262

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Wed 4/23

10:08 pm-3:35 pm

1 stop20h 27m

Ontario

Sat 5/3

1:15 pm-6:52 am

1 stop14h 37m

$262

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 4/15

10:59 pm-10:21 am

1 stop14h 22m

Ontario

Mon 4/21

6:03 pm-10:00 pm

1 stop24h 57m

$263

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Sat 5/3

6:15 pm-9:25 pm

Nonstop6h 10m

Ontario

Sat 5/10

10:59 pm-7:19 am

Nonstop5h 20m

$267

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 4/30

4:17 pm-10:10 pm

1 stop8h 53m

Ontario

Sat 5/3

6:00 am-4:04 pm

1 stop7h 04m

$267

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 5/7

6:00 am-12:24 pm

1 stop9h 24m

Ontario

Wed 5/14

1:45 pm-12:58 am

1 stop8h 13m

$267

NewarkOntario

EWR - ONT

EWRONT

Newark

Tue 9/16

4:00 pm-11:59 pm

1 stop10h 59m

Ontario

Tue 9/23

3:00 pm-5:59 am

1 stop11h 59m

$269

NewarkOntario

EWR - ONT

EWRONT

Newark

Fri 4/25

5:59 am-1:49 pm

1 stop10h 50m

Ontario

Sat 5/10

7:25 pm-6:00 am

1 stop7h 35m

$272

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

Showing 1-10 of 54 results
1
2
3
...
6

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 April 2, 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 April 2, 2025.
Read through reviews of airlines operating flights from New Jersey to Ontario, such as Alaska Airlines, Southwest and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,823 reviews

Food

7.1

Comfort

7.9

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Alaska Airlines
8.0
Very good
9,823 reviews
Alaska Airlines
8.0
Very good
9,823 reviews

Food

7.1

Comfort

7.9

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Southwest
8.0
Very good
4,275 reviews
Alaska Airlines
8.0
Very good
9,823 reviews

Food

7.1

Comfort

7.9

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Delta
8.0
Very good
7,897 reviews
Alaska Airlines
8.0
Very good
9,823 reviews

Food

7.1

Comfort

7.9

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Hawaiian Airlines
7.9
Good
2,344 reviews
Alaska Airlines
8.0
Very good
9,823 reviews

Food

7.1

Comfort

7.9

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
United Airlines
7.4
Good
8,616 reviews
Alaska Airlines
8.0
Very good
9,823 reviews

Food

7.1

Comfort

7.9

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

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.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $84. However, be on the lookout for offers from Alaska Airlines 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?

    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, 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for New Jersey to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
Newark to Las Vegas flights
Dallas/Fort Worth to Las Vegas flights
Newark to Los Angeles flights
LaGuardia to Los Angeles flights
O'Hare Intl to Las Vegas flights
Seattle to Las Vegas flights
LaGuardia to Las Vegas flights
John F Kennedy Intl to San Francisco flights
Seattle to Los Angeles flights
Denver to Las Vegas flights
Boston to Los Angeles flights
Dulles Intl to Las Vegas flights
Boston to Las Vegas flights
Atlanta to Las Vegas flights
San Francisco to Las Vegas flights
Los Angeles to Las Vegas flights
San Francisco to Los Angeles flights
Dulles Intl to Los Angeles flights
Dallas/Fort Worth to Los Angeles flights
San Jose to Los Angeles flights
O'Hare Intl to Los Angeles flights
Reagan-National to Los Angeles flights
Seattle to San Diego flights
Santa Ana to Las Vegas flights
Los Angeles to San Francisco flights
Newark to San Francisco flights
John F Kennedy Intl to San Diego flights
Los Angeles to San Jose flights
Reagan-National to Las Vegas flights
Dulles Intl to San Francisco flights
Oakland to Los Angeles flights
Hobby to Las Vegas flights
Seattle to Santa Ana flights
Oakland to Las Vegas flights
Detroit to Las Vegas flights
Minneapolis to Las Vegas flights
Newark to San Diego flights
Baltimore to Las Vegas flights
Newark to Burbank flights
San Francisco to Ontario flights
Los Angeles to Oakland flights
O'Hare Intl to San Francisco flights
San Jose to Las Vegas flights
LaGuardia to San Francisco flights
Philadelphia to Las Vegas flights
Burbank to Las Vegas flights
Seattle to Ontario flights
Portland to Los Angeles flights

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 April 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$171Average$265FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$267Average$549FlexibilityNo cancel feeOn-time69%
DeltaCheapest$278Average$400FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$279Average$438FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.