How long is the flight from Ontario to Newark Airport?

United Airlines, Alaska Airlines, and Delta can get you from Ontario to Newark Airport in just under 7h 38m. Your travel time can differ by up to 18h 24m. 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.

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.

In terms of precipitation, rainfall in Newark Airport ranges from 2.9 - 4.8 inches per month. July is typically the wettest month, when rainfall can reach 4.8 in. February is typically the driest time to visit Newark Airport when rainfall is around 2.9 in.

If weather is an important factor for your trip to Newark Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What are the most popular airlines that fly from Ontario to Newark Airport?

Before booking your flight from Ontario to Newark Airport check out the most popular airlines for this route: American Airlines, United Airlines or Delta.

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.

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.

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.

$98+ Flights from Ontario to Newark Airport

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Find cheap flights from Ontario to Newark with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Ontario to Newark are usually found in January or February, booked 69 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

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 December 12, 2025.

Wed 12/246:00 amONT - EWR

2 stops36h 35mMultiple Airlines

Wed 1/73:59 pmEWR - ONT

1 stop24h 40mMultiple Airlines

Deal found 12/9

$286

Thu 12/256:00 amONT - EWR

2 stops28h 44mMultiple Airlines

Wed 1/73:59 pmEWR - ONT

1 stop24h 40mMultiple Airlines

Deal found 12/9

$309

Tue 12/238:19 amONT - EWR

2 stops33h 46mMultiple Airlines

Wed 1/73:59 pmEWR - ONT

1 stop24h 40mMultiple Airlines

Deal found 12/9

$326

Wed 12/246:00 amONT - EWR

1 stop8h 29mDelta

Thu 1/82:30 pmEWR - ONT

1 stop9h 35mDelta

Deal found 12/11

$333

Mon 12/226:00 pmONT - EWR

2 stops28h 05mMultiple Airlines

Wed 1/73:59 pmEWR - ONT

1 stop24h 40mMultiple Airlines

Deal found 12/9

$342

Wed 12/246:00 amONT - EWR

2 stops36h 35mMultiple Airlines

Fri 1/912:00 pmEWR - ONT

1 stop12h 23mMultiple Airlines

Deal found 12/9

$347

Wed 12/246:00 amONT - EWR

1 stop8h 29mDelta

Tue 1/67:00 amEWR - ONT

1 stop8h 16mDelta

Deal found 12/11

$350

Thu 12/256:00 amONT - EWR

2 stops28h 44mMultiple Airlines

Thu 1/84:15 pmEWR - ONT

1 stop24h 24mMultiple Airlines

Deal found 12/9

$357

Wed 12/246:45 amONT - EWR

2 stops22h 15mMultiple Airlines

Thu 1/84:15 pmEWR - ONT

1 stop24h 24mMultiple Airlines

Deal found 12/9

$365

Wed 12/1711:41 amONT - EWR

1 stop8h 22mDelta

Thu 1/87:00 amEWR - ONT

1 stop8h 16mDelta

Deal found 12/10

$370

Tue 12/238:19 amONT - EWR

2 stops13h 46mMultiple Airlines

Thu 1/84:15 pmEWR - ONT

1 stop24h 24mMultiple Airlines

Deal found 12/9

$374

Thu 12/256:00 amONT - EWR

1 stop8h 29mDelta

Thu 1/86:00 amEWR - ONT

1 stop8h 31mDelta

Deal found 12/11

$386

Best flights from Ontario to Newark
Discover carefully curated flight deals from Ontario to Newark that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

Thu 1/156:00 amONT - EWR

1 stop9h 09mUnited Airlines

Sun 1/183:30 pmEWR - ONT

1 stop9h 28mUnited Airlines

Deal found 12/11

$289

Sat 1/2411:53 amONT - EWR

1 stop26h 02mAlaska Airlines

Mon 2/94:36 pmEWR - ONT

1 stop25h 32mAlaska Airlines

Deal found 12/10

$324

Wed 3/111:20 pmONT - EWR

1 stop7h 38mDelta

Wed 3/186:00 amEWR - ONT

1 stop8h 35mDelta

Deal found 12/11

$333

Sat 2/147:00 amONT - EWR

1 stop8h 59mAlaska Airlines

Thu 2/195:30 pmEWR - ONT

1 stop9h 22mAlaska Airlines

Deal found 12/11

$332

Wed 1/216:00 amONT - EWR

1 stop7h 56mUnited Airlines

Fri 1/2310:00 amEWR - ONT

1 stop10h 43mUnited Airlines

Deal found 12/11

$333

Tue 4/285:05 pmONT - EWR

1 stop10h 03mDelta

Tue 5/52:59 pmEWR - ONT

2 stops10h 10mDelta

Deal found 12/11

$338

Thu 1/154:03 pmONT - EWR

1 stop23h 21mAlaska Airlines

Thu 1/224:36 pmEWR - ONT

1 stop10h 20mAlaska Airlines

Deal found 12/11

$335

Fri 2/2010:20 pmONT - EWR

2 stops11h 22mDelta

Mon 2/233:00 pmEWR - ONT

2 stops11h 49mDelta

Deal found 12/11

$343

Sat 1/245:59 pmONT - EWR

2 stops19h 56mAlaska Airlines

Sat 1/316:08 pmEWR - ONT

2 stops21h 58mAlaska Airlines

Deal found 12/10

$335

Fri 1/166:00 amONT - EWR

1 stop9h 24mAlaska Airlines

Tue 1/206:08 pmEWR - ONT

1 stop24h 00mAlaska Airlines

Deal found 12/11

$368

Mon 3/166:14 amONT - EWR

1 stop9h 14mAlaska Airlines

Mon 3/235:25 pmEWR - ONT

1 stop20h 28mAlaska Airlines

Deal found 12/11

$369

Sat 1/174:03 pmONT - EWR

1 stop23h 21mAlaska Airlines

Sat 1/246:08 pmEWR - ONT

1 stop19h 51mAlaska Airlines

Deal found 12/11

$374

Last-minute flights from Ontario to Newark
Discover last-minute flight deals from Ontario to Newark. Data last updated December 12, 2025 and is based on user searches.

Wed 12/246:00 amONT - EWR

2 stops36h 35mMultiple Airlines

Wed 1/73:59 pmEWR - ONT

1 stop24h 40mMultiple Airlines

Deal found 12/9

$286

Wed 1/710:45 amONT - EWR

2 stops26h 50mMultiple Airlines

Wed 1/144:15 pmEWR - ONT

1 stop29h 46mMultiple Airlines

Deal found 12/11

$214

Thu 1/88:31 amONT - EWR

1 stop30h 23mMultiple Airlines

Thu 1/1510:19 pmEWR - ONT

2 stops28h 40mMultiple Airlines

Deal found 12/11

$250

Thu 1/810:18 pmONT - EWR

2 stops16h 36mMultiple Airlines

Sun 1/114:15 pmEWR - ONT

1 stop24h 24mMultiple Airlines

Deal found 12/11

$253

Fri 1/96:00 amONT - EWR

2 stops14h 30mMultiple Airlines

Mon 1/1212:00 pmEWR - ONT

1 stop12h 23mMultiple Airlines

Deal found 12/10

$263

Fri 1/93:49 pmONT - EWR

2 stops28h 41mMultiple Airlines

Sun 1/114:15 pmEWR - ONT

1 stop24h 24mMultiple Airlines

Deal found 12/11

$271

Fri 1/166:10 amONT - EWR

2 stops25h 20mMultiple Airlines

Sun 1/184:15 pmEWR - ONT

1 stop24h 33mMultiple Airlines

Deal found 12/10

$236

Fri 1/168:32 amONT - EWR

1 stop30h 22mMultiple Airlines

Mon 1/195:25 amEWR - ONT

2 stops19h 08mMultiple Airlines

Deal found 12/10

$267

Thu 1/222:06 pmONT - EWR

1 stop24h 48mMultiple Airlines

Sat 1/249:00 amEWR - ONT

2 stops17h 24mMultiple Airlines

Deal found 12/11

$245

Sun 1/255:57 pmONT - EWR

2 stops44h 57mMultiple Airlines

Sun 2/112:00 pmEWR - ONT

1 stop27h 43mMultiple Airlines

Deal found 12/11

$247

Thu 1/292:06 pmONT - EWR

1 stop24h 48mMultiple Airlines

Mon 2/210:30 pmEWR - ONT

2 stops19h 37mMultiple Airlines

Deal found 12/10

$229

Thu 1/292:06 pmONT - EWR

2 stops14h 47mMultiple Airlines

Sun 2/112:00 pmEWR - ONT

1 stop27h 43mMultiple Airlines

Deal found 12/11

$259

One-way flights from Ontario to Newark
Search for one-way flight options from Ontario to Newark. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.

Mon 2/93:36 pmONT - EWR

1 stop23h 18mMultiple Airlines

Deal found 12/11

$98

Mon 1/1910:18 pmONT - EWR

2 stops16h 36mMultiple Airlines

Deal found 12/10

$108

Sat 1/107:00 amONT - EWR

2 stops37h 30mMultiple Airlines

Deal found 12/11

$117

Tue 1/64:04 pmONT - EWR

2 stops45h 31mMultiple Airlines

Deal found 12/9

$123

Mon 1/56:00 pmONT - EWR

2 stops43h 36mMultiple Airlines

Deal found 12/10

$133

Sat 1/177:15 amONT - EWR

3 stops23h 45mMultiple Airlines

Deal found 12/10

$136

Sat 1/176:27 amONT - EWR

1 stop7h 03mAmerican Airlines

Deal found 12/10

$138

Wed 12/246:00 amONT - EWR

2 stops36h 05mMultiple Airlines

Deal found 12/11

$148

Tue 2/34:03 pmONT - EWR

1 stop23h 21mAlaska Airlines

Deal found 12/11

$158

Find flight deals from Ontario to Newark

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$192 (Kiwi.com)
One-way from	$98 (Kiwi.com)
Popular in	November
Cheapest in	January
Average price	$492

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. 13% potential increase in price ($64 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 December 2025

Search Deals

Cheapflights Fare Finder

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

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Thu 1/15

6:00 am-6:09 pm

1 stop9h 09m

Newark

Sun 1/18

3:30 pm-9:58 pm

1 stop9h 28m

$289

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Sat 1/24

11:53 am-4:55 pm

1 stop26h 02m

Newark

Mon 2/9

4:36 pm-3:08 pm

1 stop25h 32m

$324

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Sat 2/14

7:00 am-6:59 pm

1 stop8h 59m

Newark

Thu 2/19

5:30 pm-11:52 pm

1 stop9h 22m

$332

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Wed 3/11

1:20 pm-11:58 pm

1 stop7h 38m

Newark

Wed 3/18

6:00 am-11:35 am

1 stop8h 35m

$333

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Wed 1/21

6:00 am-4:56 pm

1 stop7h 56m

Newark

Fri 1/23

10:00 am-5:43 pm

1 stop10h 43m

$333

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

$335

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Sat 1/24

5:59 pm-4:55 pm

2 stops19h 56m

Newark

Sat 1/31

6:08 pm-1:06 pm

2 stops21h 58m

$335

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Tue 4/28

5:05 pm-6:08 am

1 stop10h 03m

Newark

Tue 5/5

2:59 pm-10:09 pm

2 stops10h 10m

$338

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Fri 2/20

10:20 pm-12:42 pm

2 stops11h 22m

Newark

Mon 2/23

3:00 pm-11:49 pm

2 stops11h 49m

$343

OntarioNewark

ONT - EWR

ONTEWR

Ontario

Fri 1/16

6:00 am-6:24 pm

1 stop9h 24m

Newark

Tue 1/20

6:08 pm-3:08 pm

1 stop24h 00m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 23 results

Compare providers for flights from Ontario to Newark

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Newark in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star
Priceline	Price Accuracy1 star	Trust 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?

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 $182). 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?

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 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

8,008 reviews

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

8,008 reviews

Delta

7.9

Good

8,008 reviews

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

9,095 reviews

Delta

7.9

Good

8,008 reviews

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

11,050 reviews

Delta

7.9

Good

8,008 reviews

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

2,899 reviews

Delta

7.9

Good

8,008 reviews

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

8,179 reviews

Delta

7.9

Good

8,008 reviews

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

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?
United Airlines, Alaska Airlines, and Delta can get you from Ontario to Newark Airport in just under 7h 38m. Your travel time can differ by up to 18h 24m. 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.
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 $182). 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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Top 6 airlines flying from Ontario to Newark

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$48	Average$97	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$90	Average$246	FlexibilityNo cancel fee	On-time65%
JetBlue	Cheapest$237	Average$317	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$261	Average$432	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$281	Average$379	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$282	Average$414	FlexibilityNo cancel fee	On-time69%

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$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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Newark with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Ontario to Newark are usually found in January or February, booked 69 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Ontario to Newark

Cheapest flights from Ontario to NewarkExplore 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 December 12, 2025.

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 December 12, 2025.

Find flight deals from Ontario to Newark

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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 December.

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.

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?

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

What is the cheapest time of day to fly from ONT to EWR?

Reviews of airlines servicing Newark

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.

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?

How long is the flight from Ontario to Newark Airport?

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

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

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

How can I find direct flights from Ontario to Newark?

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

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

Traveling to a place near Newark Airport?

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Alternative routes for Ontario to Newark

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Top 6 airlines flying from Ontario to Newark

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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 December 12, 2025.