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Ontario

$65+ 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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — ONT
Feb 28 — Mar 71
Fri 2/28
Fri 3/7
1 adult, Economy
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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 February 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$130
(Frontier)

One-way from

$65
(Frontier)

Popular in

December

Cheapest in

January

Average price

$366
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From New Jersey to Ontario
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One-way flight from New Jersey to Ontario
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Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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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 February 23, 2025.

This Frontier deal was found by Cheapflights users on 2/22. 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 3/257:45 amPHL - ONT
1 stop10h 19mFrontier
Wed 4/23:17 pmONT - PHL
1 stop10h 58mFrontier
Deal found 2/22$130
This Trip.com deal was found by Cheapflights users on 2/21. 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 4/226:59 amJFK - ONT
1 stop29h 54mFrontier
Fri 5/210:17 pmONT - JFK
1 stop28h 13mFrontier
Deal found 2/21$172
This FlightHub deal was found by Cheapflights users on 2/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/310:59 pmLGA - ONT
1 stop12h 20mFrontier
Sun 4/68:29 amONT - LGA
1 stop10h 31mFrontier
Deal found 2/21$182
This JetBlue deal was found by Cheapflights users on 2/21. 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.
Fri 5/26:10 pmJFK - ONT
Nonstop6h 12mJetBlue
Mon 5/510:40 pmONT - JFK
Nonstop5h 20mJetBlue
Deal found 2/21$257
This Delta deal was found by Cheapflights users on 2/22. 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.
Tue 4/221:00 pmLGA - ONT
1 stop9h 28mDelta
Tue 4/297:00 amONT - LGA
1 stop7h 41mDelta
Deal found 2/22$277
This Delta deal was found by Cheapflights users on 2/21. 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 4/263:59 pmJFK - ONT
1 stop9h 07mDelta
Sat 5/35:30 pmONT - JFK
1 stop10h 50mDelta
Deal found 2/21$277
This Delta deal was found by Cheapflights users on 2/21. 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 4/265:59 amEWR - ONT
1 stop7h 58mDelta
Sat 5/31:20 pmONT - EWR
1 stop7h 36mDelta
Deal found 2/21$277
This United Airlines deal was found by Cheapflights users on 2/21. 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.
Fri 5/93:43 pmLGA - ONT
1 stop9h 17mUnited Airlines
Tue 5/136:08 amONT - LGA
1 stop10h 01mUnited Airlines
Deal found 2/21$278
This American Airlines deal was found by Cheapflights users on 2/21. 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.
Mon 3/171:59 pmLGA - ONT
1 stop11h 28mAmerican Airlines
Wed 3/197:00 amONT - LGA
1 stop9h 05mAmerican Airlines
Deal found 2/21$287
This American Airlines deal was found by Cheapflights users on 2/22. 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.
Sat 4/268:00 amJFK - ONT
2 stops10h 59mAmerican Airlines
Tue 4/2911:59 pmONT - JFK
2 stops10h 54mAmerican Airlines
Deal found 2/22$287
This American Airlines deal was found by Cheapflights users on 2/21. 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 3/1212:41 pmEWR - ONT
1 stop9h 20mAmerican Airlines
Tue 4/2211:59 pmONT - EWR
1 stop8h 35mAmerican Airlines
Deal found 2/21$297
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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.
Wed 3/125:37 pmEWR - ONT
1 stop32h 47mAlaska Airlines
Mon 3/176:00 amONT - EWR
1 stop29h 33mAlaska Airlines
Deal found 2/20$314

Find flights from New Jersey to Ontario within your budget

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 23, 2025.

Fly from

New Jersey

Fly to

Ontario

Route

Depart

Return

Price

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Wed 3/19

7:45 am-3:04 pm

1 stop10h 19m

Ontario

Wed 3/26

2:43 pm-6:14 am

1 stop12h 31m

$130

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Tue 4/22

6:59 am-9:53 am

1 stop29h 54m

Ontario

Fri 5/2

10:17 pm-5:30 am

1 stop28h 13m

$172

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Thu 4/3

10:59 pm-8:19 am

1 stop12h 20m

Ontario

Sun 4/6

8:29 am-10:00 pm

1 stop10h 31m

$182

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Fri 5/2

6:10 pm-9:22 pm

Nonstop6h 12m

Ontario

Mon 5/5

10:40 pm-7:00 am

Nonstop5h 20m

$257

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Tue 4/22

1:00 pm-7:28 pm

1 stop9h 28m

Ontario

Tue 4/29

7:00 am-5:41 pm

1 stop7h 41m

$277

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Sat 4/26

3:59 pm-10:06 pm

1 stop9h 07m

Ontario

Sat 5/3

5:30 pm-7:20 am

1 stop10h 50m

$277

NewarkOntario

EWR - ONT

EWRONT

Newark

Sat 4/26

5:59 am-10:57 am

1 stop7h 58m

Ontario

Sat 5/3

1:20 pm-11:56 pm

1 stop7h 36m

$277

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Fri 5/9

3:43 pm-10:00 pm

1 stop9h 17m

Ontario

Tue 5/13

6:08 am-7:09 pm

1 stop10h 01m

$278

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Mon 3/17

1:59 pm-10:27 pm

1 stop11h 28m

Ontario

Wed 3/19

7:00 am-7:05 pm

1 stop9h 05m

$287

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Sat 4/26

6:25 am-1:49 pm

2 stops10h 24m

Ontario

Sat 5/3

10:00 am-10:03 pm

2 stops9h 03m

$287

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 48 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.

Travel insights for flights from New Jersey to Ontario

Get recent, data-driven insights about flights from New Jersey to Ontario including ideal travel times, pricing trends, and more.

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 $315). 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 February 23, 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 February 23, 2025.
Read through reviews of airlines operating flights from New Jersey to Ontario, such as Southwest, Alaska Airlines and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,396 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,396 reviews
Southwest
8.1
Very good
4,396 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,702 reviews
Southwest
8.1
Very good
4,396 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,203 reviews
Southwest
8.1
Very good
4,396 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Hawaiian Airlines
7.9
Good
2,315 reviews
Southwest
8.1
Very good
4,396 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

JetBlue
7.4
Good
3,068 reviews
Southwest
8.1
Very good
4,396 reviews

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

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 $65. 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?

    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 $246). Flying from New Jersey to Ontario in March is currently the most expensive (average of $315). 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 February 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$171Average$265FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$267Average$575FlexibilityNo cancel feeOn-time69%
DeltaCheapest$278Average$392FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$286Average$440FlexibilityNo cancel feeOn-time71%
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