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Newark

$94+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — EWR
feb. 19 — feb. 261
jue. 2/19
jue. 2/26
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 enero 20, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/19. 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.
mar. 2/178:35 am
ONT
-
EWR
2 stops13h 33m
Multiple Airlines
vie. 2/203:59 pm
EWR
-
ONT
1 stop18h 27m
Multiple Airlines
Deal found 1/19$200
This Kiwi.com deal was found by Cheapflights users on 1/19. 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.
lun. 3/22:06 pm
ONT
-
EWR
1 stop24h 48m
Multiple Airlines
mar. 3/106:00 am
EWR
-
ONT
2 stops20h 59m
Multiple Airlines
Deal found 1/19$208
This Kiwi.com deal was found by Cheapflights users on 1/18. 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.
jue. 2/262:06 pm
ONT
-
EWR
1 stop24h 48m
Multiple Airlines
lun. 3/25:59 am
EWR
-
ONT
2 stops21h 00m
Multiple Airlines
Deal found 1/18$218
This Kiwi.com deal was found by Cheapflights users on 1/19. 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.
lun. 2/161:18 pm
ONT
-
EWR
1 stop19h 11m
Multiple Airlines
vie. 2/205:59 am
EWR
-
ONT
2 stops21h 00m
Multiple Airlines
Deal found 1/19$247
This Kiwi.com deal was found by Cheapflights users on 1/19. 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.
mié. 4/15:18 pm
ONT
-
EWR
1 stop22h 13m
Multiple Airlines
mié. 4/86:55 am
EWR
-
ONT
2 stops20h 01m
Multiple Airlines
Deal found 1/19$249
This Kiwi.com deal was found by Cheapflights users on 1/18. 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.
vie. 2/271:18 pm
ONT
-
EWR
1 stop19h 11m
Multiple Airlines
dom. 3/110:14 pm
EWR
-
ONT
2 stops28h 45m
Multiple Airlines
Deal found 1/18$256
This Kiwi.com deal was found by Cheapflights users on 1/18. 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.
lun. 4/67:40 pm
ONT
-
EWR
1 stop19h 51m
Multiple Airlines
lun. 4/135:50 am
EWR
-
ONT
2 stops17h 17m
Multiple Airlines
Deal found 1/18$259
This Kiwi.com deal was found by Cheapflights users on 1/19. 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.
lun. 2/161:18 pm
ONT
-
EWR
1 stop19h 11m
Multiple Airlines
lun. 2/236:00 pm
EWR
-
ONT
2 stops46h 52m
Multiple Airlines
Deal found 1/19$267
This Kiwi.com deal was found by Cheapflights users on 1/19. 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.
mié. 2/113:22 pm
ONT
-
EWR
2 stops12h 31m
Multiple Airlines
jue. 2/123:59 pm
EWR
-
ONT
1 stop31h 49m
Multiple Airlines
Deal found 1/19$272
This eDestinos deal was found by Cheapflights users on 1/19. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/56:20 am
ONT
-
EWR
2 stops39h 48m
Frontier
lun. 2/910:30 pm
EWR
-
ONT
2 stops42h 22m
Frontier
Deal found 1/19$273
This Kiwi.com deal was found by Cheapflights users on 1/19. 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.
mié. 2/187:30 am
ONT
-
EWR
2 stops31h 24m
Multiple Airlines
sáb. 2/284:05 pm
EWR
-
ONT
1 stop25h 24m
Multiple Airlines
Deal found 1/19$277

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 enero 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$200
(Kiwi.com)

One-way from

$94
(Kiwi.com)

Popular in

November

Cheapest in

February

Average price

$407
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. 12% potential increase in price ($59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 enero 20, 2026.
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

jue. 2/5

2:06 pm-5:54 pm

1 stop24h 48m

Newark

lun. 2/9

10:30 pm-9:34 pm

2 stops26h 04m

$279

OntarioNewark

ONT - EWR

ONTEWR

Ontario

mié. 3/4

10:20 pm-2:44 pm

2 stops13h 24m

Newark

sáb. 3/7

1:25 pm-9:05 pm

2 stops10h 40m

$308

OntarioNewark

ONT - EWR

ONTEWR

Ontario

jue. 4/30

7:59 pm-2:27 pm

1 stop15h 28m

Newark

mar. 5/5

7:30 am-2:32 pm

1 stop10h 02m

$315

OntarioNewark

ONT - EWR

ONTEWR

Ontario

mié. 2/18

1:45 pm-11:24 pm

1 stop6h 39m

Newark

sáb. 2/28

3:30 pm-8:50 pm

1 stop8h 20m

$317

OntarioNewark

ONT - EWR

ONTEWR

Ontario

mié. 2/18

10:20 pm-2:44 pm

2 stops13h 24m

Newark

mié. 2/25

7:00 am-12:07 pm

1 stop8h 07m

$322

OntarioNewark

ONT - EWR

ONTEWR

Ontario

jue. 2/26

5:00 am-4:53 pm

1 stop8h 53m

Newark

lun. 3/2

3:30 pm-8:50 pm

1 stop8h 20m

$329

OntarioNewark

ONT - EWR

ONTEWR

Ontario

sáb. 2/28

1:45 pm-11:24 pm

1 stop6h 39m

Newark

mar. 3/3

3:30 pm-8:50 pm

1 stop8h 20m

$329

OntarioNewark

ONT - EWR

ONTEWR

Ontario

sáb. 2/14

5:00 am-4:53 pm

1 stop8h 53m

Newark

mar. 2/24

2:20 pm-10:00 pm

1 stop10h 40m

$329

OntarioNewark

ONT - EWR

ONTEWR

Ontario

lun. 6/8

6:30 pm-5:17 am

1 stop7h 47m

Newark

lun. 6/15

5:00 pm-11:06 pm

1 stop9h 06m

$329

OntarioNewark

ONT - EWR

ONTEWR

Ontario

sáb. 5/16

7:00 am-6:05 pm

1 stop8h 05m

Newark

mié. 5/20

4:40 pm-10:30 pm

1 stop8h 50m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Showing 1-10 of 22 results
1
2
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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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 Expedia the most. Expedia 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 January 16, 2026.

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 $166). 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 enero 20, 2026.
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
8,076 reviews

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.2

Entertainment

7.8

Overall

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
8,076 reviews
Delta
7.9
Good
8,076 reviews

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.2

Entertainment

7.8

Overall

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
9,180 reviews
Delta
7.9
Good
8,076 reviews

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.2

Entertainment

7.8

Overall

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
7.2
Good
11,164 reviews
Delta
7.9
Good
8,076 reviews

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.2

Entertainment

7.8

Overall

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
2,892 reviews
Delta
7.9
Good
8,076 reviews

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.2

Entertainment

7.8

Overall

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
8,349 reviews
Delta
7.9
Good
8,076 reviews

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.2

Entertainment

7.8

Overall

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. 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, Alaska Airlines, and United Airlines can get you from Ontario to Newark Airport in just under 6h 39m. Your travel time can differ by up to 8h 49m. 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 $67, and JetBlue, from $237. Frontier is priced at 88% 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 American Airlines 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 December is currently the most expensive (average of $166). 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
Mahwah
Bronx
East Rutherford
Bethlehem
Yonkers
Elizabeth
Secaucus
Mount Laurel
North Bergen
Stamford
Ronkonkoma
Edgewater
Seaside Heights
Absecon
Carle Place
Parsippany
Staten Island
Carteret
New Brunswick

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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 enero 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$48Average$97FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$67Average$202FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$237Average$317FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$268Average$434FlexibilityNo cancel feeOn-time71%
DeltaCheapest$281Average$377FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$289Average$414FlexibilityNo cancel feeOn-time69%

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