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Ontario

$82+ 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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — ONT
Jun 21 — Jun 281
Sun 6/21
Sun 6/28
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 May 22, 2026.

This American Airlines deal was found by Cheapflights users on 5/18. 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.
Tue 6/94:17 pm
PHL
-
ONT
1 stop8h 40m
American Airlines
Sat 6/131:11 pm
ONT
-
PHL
1 stop7h 46m
American Airlines
Deal found 5/18$282
This American Airlines deal was found by Cheapflights users on 5/17. 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 7/184:55 pm
PHL
-
ONT
1 stop8h 39m
American Airlines
Sat 7/252:15 pm
ONT
-
PHL
1 stop7h 20m
American Airlines
Deal found 5/17$290
This Trip.com deal was found by Cheapflights users on 5/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/78:35 pm
PHL
-
ONT
1 stop16h 30m
Frontier
Wed 6/103:34 pm
ONT
-
PHL
1 stop11h 53m
Frontier
Deal found 5/20$296
This American Airlines deal was found by Cheapflights users on 5/19. 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 5/2911:29 am
JFK
-
ONT
2 stops9h 53m
American Airlines
Fri 6/51:11 pm
ONT
-
JFK
1 stop7h 47m
American Airlines
Deal found 5/19$297
This CheapOair deal was found by Cheapflights users on 5/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/178:37 pm
PHL
-
ONT
1 stop16h 27m
Frontier
Sat 7/2511:52 am
ONT
-
PHL
1 stop15h 08m
Frontier
Deal found 5/21$297
This Southwest deal was found by Cheapflights users on 5/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1410:40 am
LGA
-
ONT
1 stop8h 30m
Southwest
Mon 9/2111:00 am
ONT
-
LGA
1 stop7h 55m
Southwest
Deal found 5/17$298
This Delta deal was found by Cheapflights users on 5/17. 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 7/146:00 am
JFK
-
ONT
1 stop7h 38m
Delta
Thu 7/235:10 pm
ONT
-
JFK
1 stop10h 08m
Delta
Deal found 5/17$298
This Frontier deal was found by Cheapflights users on 5/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1112:42 pm
PHL
-
ONT
1 stop14h 07m
Frontier
Wed 7/83:40 pm
ONT
-
PHL
1 stop11h 20m
Frontier
Deal found 5/21$298
This Super.com deal was found by Cheapflights users on 5/19. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:30 pm
JFK
-
ONT
Nonstop6h 05m
JetBlue
Mon 9/711:50 pm
ONT
-
JFK
Nonstop5h 21m
JetBlue
Deal found 5/19$299
This Frontier deal was found by Cheapflights users on 5/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/107:00 am
PHL
-
ONT
1 stop13h 52m
Frontier
Fri 7/108:17 am
ONT
-
PHL
1 stop8h 12m
Frontier
Deal found 5/21$299
This Super.com deal was found by Cheapflights users on 5/21. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:52 pm
JFK
-
ONT
Nonstop6h 09m
JetBlue
Fri 7/1011:51 pm
ONT
-
JFK
Nonstop5h 22m
JetBlue
Deal found 5/21$300
This Frontier deal was found by Cheapflights users on 5/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/311:06 am
PHL
-
ONT
1 stop7h 48m
Frontier
Fri 8/78:17 am
ONT
-
PHL
1 stop8h 12m
Frontier
Deal found 5/21$300

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 May 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$282
(American Airlines)

One-way from

$82
(Frontier)

Popular in

December

Cheapest in

January

Average price

$413
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
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
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 May 22, 2026.
Use the filters below to find and compare flights from New Jersey to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Fri 8/14

5:15 am-10:42 am

1 stop8h 27m

Ontario

Mon 8/17

10:00 pm-9:36 am

1 stop8h 36m

$306

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Sat 7/4

6:52 pm-10:01 pm

Nonstop6h 09m

Ontario

Fri 7/10

11:51 pm-8:13 am

Nonstop5h 22m

$307

NewarkOntario

EWR - ONT

EWRONT

Newark

Tue 10/20

6:00 am-11:27 am

1 stop8h 27m

Ontario

Sat 10/31

12:00 pm-10:58 pm

1 stop7h 58m

$317

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Sat 7/4

6:35 am-12:30 pm

1 stop8h 55m

Ontario

Wed 7/22

1:20 pm-11:05 pm

1 stop6h 45m

$328

New YorkOntario

LGA - ONT

LGAONT

New York LaGuardia

Wed 6/3

1:59 pm-9:48 pm

1 stop10h 49m

Ontario

Wed 6/10

11:50 am-11:23 pm

1 stop8h 33m

$332

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 8/19

6:00 am-12:05 pm

1 stop9h 05m

Ontario

Sun 8/23

10:00 pm-10:05 am

1 stop9h 05m

$347

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Fri 7/10

7:30 am-12:10 pm

1 stop7h 40m

Ontario

Fri 7/17

7:05 am-5:12 pm

1 stop7h 07m

$354
Quickest round-trip

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Wed 8/19

7:30 pm-10:35 pm

Nonstop6h 05m

Ontario

Tue 8/25

11:50 pm-8:11 am

Nonstop5h 21m

$355

PhiladelphiaOntario

PHL - ONT

PHLONT

Philadelphia

Thu 8/13

5:15 am-10:42 am

1 stop8h 27m

Ontario

Tue 8/18

6:01 pm-5:40 am

1 stop8h 39m

$355

New YorkOntario

JFK - ONT

JFKONT

New York John F Kennedy Intl

Mon 8/17

7:30 pm-10:35 pm

Nonstop6h 05m

Ontario

Tue 8/25

11:50 pm-8:11 am

Nonstop5h 21m

$357

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/20

Showing 1-10 of 60 resultsSorted by cheapest first
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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

How much does it cost to fly round-trip from New Jersey to Ontario?

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 6h 09m. Delta provides one of the quickest options available for as low as $307. 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 Spirit Airlines, with whom users have recently found tickets for as low as $97. However, be on the lookout for offers from Alaska Airlines and United 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.

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 3 airlines flying from New Jersey to Ontario

Discover the top 3 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 May 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$276Average$418FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$276Average$370FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$296Average$518FlexibilityNo cancel feeOn-time69%

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