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Newark

$95+ Cheap flights from Ontario (ONT) to Newark (EWR)

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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EWR
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Newark are usually found in January or August, booked 69 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Ontario to Newark

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Newark (EWR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$194
(Kiwi.com)

One-way from

$95
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$477
Provider with most accurate pricing for Ontario-Newark flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Newark flights.
Search Deals
From Ontario to Newark
Search Deals
One-way flight from Ontario to Newark
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Ontario to Newark

Cheapest flights from Ontario to Newark
Explore the most affordable flight options available from Ontario to Newark. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/912:30 pmONT - EWR
1 stop23h 23mMultiple Airlines
Sun 1/1810:30 pmEWR - ONT
2 stops42h 42mMultiple Airlines
Deal found 11/18$194
This Kiwi.com deal was found by Cheapflights users on 11/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/912:30 pmONT - EWR
1 stop23h 23mMultiple Airlines
Mon 1/1911:30 amEWR - ONT
2 stops29h 42mMultiple Airlines
Deal found 11/18$201
This Kiwi.com deal was found by Cheapflights users on 11/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:33 pmONT - EWR
1 stop16h 20mMultiple Airlines
Tue 12/165:59 amEWR - ONT
2 stops18h 18mMultiple Airlines
Deal found 11/18$251
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/212:30 pmONT - EWR
1 stop19h 18mMultiple Airlines
Thu 12/410:00 pmEWR - ONT
2 stops28h 48mMultiple Airlines
Deal found 11/17$254
This Kiwi.com deal was found by Cheapflights users on 11/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:21 pmONT - EWR
1 stop17h 32mMultiple Airlines
Wed 12/105:15 amEWR - ONT
2 stops19h 02mMultiple Airlines
Deal found 11/18$256
This Kiwi.com deal was found by Cheapflights users on 11/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:21 pmONT - EWR
1 stop17h 32mMultiple Airlines
Fri 12/121:55 pmEWR - ONT
2 stops27h 30mMultiple Airlines
Deal found 11/18$285
This United Airlines deal was found by Cheapflights users on 11/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:00 amONT - EWR
1 stop7h 21mUnited Airlines
Wed 12/172:15 pmEWR - ONT
1 stop10h 34mUnited Airlines
Deal found 11/19$287
This Kiwi.com deal was found by Cheapflights users on 11/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:22 pmONT - EWR
1 stop19h 32mMultiple Airlines
Wed 12/3110:30 pmEWR - ONT
2 stops19h 51mMultiple Airlines
Deal found 11/19$290
This United Airlines deal was found by Cheapflights users on 11/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:41 pmONT - EWR
1 stop8h 19mUnited Airlines
Wed 12/106:00 amEWR - ONT
1 stop9h 17mUnited Airlines
Deal found 11/18$291
This Kiwi.com deal was found by Cheapflights users on 11/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/133:20 pmONT - EWR
2 stops37h 23mMultiple Airlines
Wed 12/176:49 pmEWR - ONT
1 stop25h 33mMultiple Airlines
Deal found 11/19$292
This Delta deal was found by Cheapflights users on 11/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2712:16 pmONT - EWR
1 stop9h 35mDelta
Fri 12/57:00 pmEWR - ONT
1 stop7h 58mDelta
Deal found 11/18$295
This American Airlines deal was found by Cheapflights users on 11/19. 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 12/1212:55 pmONT - EWR
1 stop7h 17mAmerican Airlines
Sun 1/188:10 amEWR - ONT
1 stop13h 35mAmerican Airlines
Deal found 11/19$296

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Newark 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 November 20, 2025.
Use the filters below to find and compare flights from Ontario to Newark Airport that are best for you.

Fly from

Ontario

Fly to

Newark

Route

Depart

Return

Price

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Fri 1/23

1:10 pm-11:59 pm

1 stop7h 49m

Newark

Mon 1/26

6:44 pm-11:58 pm

1 stop8h 14m

$286

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Sun 1/11

6:39 pm-7:09 am

1 stop9h 30m

Newark

Sun 1/18

3:29 pm-8:58 pm

1 stop8h 29m

$290

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Thu 1/22

6:39 pm-5:59 am

1 stop8h 20m

Newark

Mon 1/26

3:30 pm-9:58 pm

1 stop9h 28m

$292

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Sat 12/6

6:40 am-11:21 pm

2 stops13h 41m

Newark

Wed 12/10

7:00 am-4:09 pm

2 stops12h 09m

$301

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Thu 1/29

1:10 pm-11:59 pm

1 stop7h 49m

Newark

Mon 2/2

1:00 pm-11:58 pm

2 stops13h 58m

$302

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Mon 12/8

6:00 am-6:26 pm

1 stop9h 26m

Newark

Fri 12/12

5:30 pm-11:19 am

1 stop20h 49m

$306

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Sat 12/6

1:34 pm-11:15 pm

1 stop6h 41m

Newark

Wed 12/10

2:25 pm-10:49 pm

2 stops11h 24m

$312

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Thu 1/15

4:03 pm-6:24 pm

1 stop23h 21m

Newark

Thu 1/22

4:36 pm-11:56 pm

1 stop10h 20m

$329

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Mon 12/22

5:10 pm-5:14 am

1 stop9h 04m

Newark

Tue 1/6

7:00 am-12:16 pm

1 stop8h 16m

$333

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Fri 1/16

10:30 pm-12:09 pm

2 stops10h 39m

Newark

Tue 1/20

5:30 pm-11:58 pm

2 stops9h 28m

$337

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 20 results
1
2

Compare providers for flights from Ontario to Newark

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Newark in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Newark Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Newark Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Newark Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Newark Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Newark Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Newark

Have a flexible travel schedule? Discover the best time to fly to Newark from Ontario 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 Ontario to Newark Airport

How far ahead should I book a flight from Ontario to Newark Airport?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Newark. Price data was last updated on November 14, 2025.

Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Newark Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Ontario to Newark Airport?

Currently, June is the cheapest month in which you can book a flight from Ontario to Newark Airport (average of $78). Flying from Ontario to Newark Airport in December is currently the most expensive (average of $184). 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 ONT to EWR?

Find hourly flight availability from Ontario to Newark. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2025.

When flying from Ontario to Newark Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 7% versus a flight in the afternoon.

Reviews of airlines servicing Newark

Get insights into the airlines that provide service to Newark. 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 Newark. Reviews last updated November 20, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Ontario to Newark Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
Delta
7.9
Good
8,002 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
United Airlines
7.4
Good
9,028 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
American Airlines
7.2
Good
11,047 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
JetBlue
7.2
Good
2,902 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
Spirit Airlines
6.3
Okay
8,159 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!

Related info for your journey

Find useful and relevant information for your journey from Ontario to Newark. 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 from for flights from Ontario to Newark?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Newark. 6 airlines have flights from Ontario to Newark on a regular basis. Booking flights from Ontario to Newark should not be difficult; the airport handles an average of 0 outbound flights to Newark per day.

  • How long is the flight from Ontario to Newark Airport?

    Delta and United Airlines can get you from Ontario to Newark Airport in just under 7h 49m. Your travel time can differ by up to 1h 41m. There are 2401 mi between Ontario and Newark Airport. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Ontario to Newark Airport round-trip?

    Cheapflights users have booked flights from Ontario to Newark Airport round-trip from $48. Other airlines that can offer you cheap pricing are Spirit Airlines, from $90, and JetBlue, from $237. Frontier is priced at 88% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Ontario to Newark that include hotel bookings?

    Yes. In addition to deals on Ontario to Newark flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Newark?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Newark.

  • Can I find deals for business class flights from Ontario to Newark?

    Yes. Cheapflights offers flight deals from Ontario to Newark 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 Ontario to Newark Airport?

    Currently, June is the cheapest month in which you can book a flight from Ontario to Newark Airport (average of $78). Flying from Ontario to Newark Airport in December is currently the most expensive (average of $184). 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

Traveling to a place near Newark Airport?

Book flights to Newark Airport if you plan to visit one of these locations
Queens
Bronx
Mahwah
Yonkers
Ronkonkoma
Secaucus
Bethlehem
North Bergen
Elizabeth
Stamford
East Rutherford
Staten Island
Edgewater
New Brunswick
Seaside Heights
Absecon
Carle Place
Parsippany
Avenel
Paterson

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Top 6 airlines flying from Ontario to Newark

Discover the top 6 airlines that operate flights from Ontario to Newark. 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 November 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$48Average$97FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$90Average$246FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$237Average$317FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$261Average$429FlexibilityNo cancel feeOn-time71%
DeltaCheapest$281Average$378FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$282Average$406FlexibilityNo cancel feeOn-time69%

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