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Newark

$98+ 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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EWR
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
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Cheap 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 March 22, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/17. 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 4/147:44 pm
ONT
-
EWR
1 stop8h 11m
Multiple Airlines
Tue 4/212:55 pm
EWR
-
ONT
1 stop22h 49m
Multiple Airlines
Deal found 3/17$217
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Wed 4/227:44 pm
ONT
-
EWR
1 stop8h 18m
Multiple Airlines
Tue 5/52:59 pm
EWR
-
ONT
1 stop27h 45m
Multiple Airlines
Deal found 3/17$229
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Wed 4/157:44 pm
ONT
-
EWR
1 stop8h 18m
Multiple Airlines
Wed 5/62:59 pm
EWR
-
ONT
1 stop27h 10m
Multiple Airlines
Deal found 3/17$236
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 4/139:02 pm
ONT
-
EWR
1 stop30h 53m
Multiple Airlines
Mon 4/202:55 pm
EWR
-
ONT
1 stop22h 49m
Multiple Airlines
Deal found 3/18$238
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Wed 4/157:44 pm
ONT
-
EWR
1 stop8h 18m
Multiple Airlines
Wed 4/222:55 pm
EWR
-
ONT
1 stop20h 29m
Multiple Airlines
Deal found 3/17$243
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Wed 4/2211:44 am
ONT
-
EWR
1 stop16h 18m
Multiple Airlines
Mon 5/42:59 pm
EWR
-
ONT
1 stop8h 05m
Multiple Airlines
Deal found 3/17$245
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 4/139:02 pm
ONT
-
EWR
1 stop30h 53m
Multiple Airlines
Wed 4/152:55 pm
EWR
-
ONT
1 stop20h 29m
Multiple Airlines
Deal found 3/18$250
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Thu 4/2311:47 am
ONT
-
EWR
1 stop15h 43m
Multiple Airlines
Tue 5/52:59 pm
EWR
-
ONT
1 stop27h 45m
Multiple Airlines
Deal found 3/17$257
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 4/187:44 pm
ONT
-
EWR
1 stop7h 46m
Multiple Airlines
Tue 4/282:55 pm
EWR
-
ONT
1 stop22h 49m
Multiple Airlines
Deal found 3/19$262

Find 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 March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$217
(Kiwi.com)

One-way from

$98
(Trip.com)

Popular in

March

Cheapest in

June

Average price

$615
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. 10% potential increase in price ($54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 22, 2026.
Use the filters below to find and compare flights from Ontario to Newark Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Mon 5/4

10:39 am-11:29 pm

1 stop9h 50m

Newark

Wed 5/6

3:30 pm-10:32 pm

1 stop10h 02m

$389

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Wed 4/15

10:33 am-11:11 pm

1 stop9h 38m

Newark

Fri 4/24

5:33 pm-11:48 pm

1 stop9h 15m

$389

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Wed 4/15

10:33 am-11:11 pm

1 stop9h 38m

Newark

Wed 4/22

3:30 pm-10:32 pm

1 stop10h 02m

$389

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Fri 8/28

10:03 am-11:13 pm

1 stop10h 10m

Newark

Sun 8/30

5:41 pm-11:59 pm

1 stop9h 18m

$448

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Wed 4/22

10:39 am-11:29 pm

1 stop9h 50m

Newark

Mon 4/27

5:33 pm-11:48 pm

1 stop9h 15m

$448

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Fri 5/22

6:30 pm-5:40 am

1 stop8h 10m

Newark

Wed 5/27

11:55 am-5:28 pm

1 stop8h 33m

$465

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Wed 4/15

11:05 am-11:17 pm

1 stop9h 12m

Newark

Sun 4/19

6:00 am-12:38 pm

1 stop9h 38m

$494
Quickest round-trip

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Wed 6/17

6:30 pm-5:40 am

1 stop8h 10m

Newark

Tue 6/30

7:00 am-12:12 pm

1 stop8h 12m

$499

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Wed 6/17

6:30 pm-5:40 am

1 stop8h 10m

Newark

Thu 6/25

7:00 am-12:12 pm

1 stop8h 12m

$499

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Thu 9/3

10:03 am-11:13 pm

1 stop10h 10m

Newark

Sun 9/6

9:00 am-6:13 pm

1 stop12h 13m

$507

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/17

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Newark Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 March 13, 2026.

Booking 52 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 April is currently the most expensive (average of $173). 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.

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 March 22, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andJetBlue 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
8,314 reviews

Overall

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

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
8,314 reviews
Delta
7.9
Good
8,314 reviews

Overall

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

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
9,455 reviews
Delta
7.9
Good
8,314 reviews

Overall

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

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
2,908 reviews
Delta
7.9
Good
8,314 reviews

Overall

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Lucy,Nov 2023

ATL - JFK

On time flights; courteous staff; efficient boarding system! Thank you!
American Airlines
7.1
Good
11,487 reviews
Delta
7.9
Good
8,314 reviews

Overall

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

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
8,531 reviews
Delta
7.9
Good
8,314 reviews

Overall

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

Comfort

7.9

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. 5 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?

    Alaska Airlines can get you from Ontario to Newark Airport in just under 9h 50m. Your travel time can differ by up to . There are 2401 mi between Ontario and Newark Airport.

  • 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 $67. Other airlines that can offer you cheap pricing are JetBlue, from $257, and American Airlines, from $276. Spirit Airlines is priced at 84% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Ontario to Newark Airport one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $82. Alaska Airlines flights start at $126 while deals on Delta start at $138 one-way.

  • 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 April is currently the most expensive (average of $173). 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
East Rutherford
Yonkers
Bethlehem
Secaucus
Elizabeth
Mount Laurel
North Bergen
Irvington
Edgewater
Seaside Heights
Absecon
Carle Place
Parsippany
Tannersville
Staten Island
Carteret
Stamford

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Alternative routes for Ontario to Newark

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Ontario to Newark

Discover the top 5 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 March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$67Average$202FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$257Average$337FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$276Average$455FlexibilityNo cancel feeOn-time71%
DeltaCheapest$286Average$387FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$291Average$428FlexibilityNo cancel feeOn-time69%

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