How often are flights from Newark to Ontario delayed?

About 21% of weekly flights between Newark and Ontario have experienced delays in the past year, with the average delay time being 134 minutes.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Newark to Ontario flights?

Over the last year, Alaska Airlines have had the lowest number of delays on this route, with just 100% of flights being delayed.

What is the most punctual flight time for Newark to Ontario flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

How long is the flight from Newark Airport to Ontario?

For as low as $306, Alaska Airlines can have you in Ontario from Newark Airport in 10h. The distance from Newark Airport to Ontario is about 2401 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

According to our current data, Spirit Airlines ($116), United Airlines ($267), and American Airlines ($276) offers the cheapest pricing from Newark Airport to Ontario. Spirit Airlines is priced at 70% lower than the current average price of a flight leaving 3 months from now.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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

American Airlines, United Airlines and Delta are the most popular airlines when flying from Newark Airport to Ontario.

Most accurate provider : When it comes to deals on Newark Airport-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Newark Airport-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Newark Airport-Ontario flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Newark Airport-Ontario 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 Newark Airport-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Ontario from Newark?

Ontario (ONT) is the airport you will fly into if you book a flight from Newark to Ontario. You should not have trouble finding flights to Ontario from Newark; the airport handles an average of 0 inbound flights from Newark per day. You should also have plenty of airline options to choose from since 4 airlines have flights to the Ontario airport from Newark. It is only a 3.1 mi journey from Ontario (ONT) to Ontario’s city center.

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

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

How can I find direct flights from Newark to Ontario?

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

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

Yes. Cheapflights offers flight deals from Newark 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.

$97+ Cheap Flights from Newark Airport to Ontario

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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.

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Cheapflights Tip: The best prices from Newark to Ontario are usually found in September or August, booked 20 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Find flight deals from Newark to Ontario

Cheapest flights from Newark to Ontario
Explore the most affordable flight options available from Newark to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

Tue 12/95:15 amEWR - ONT

2 stops19h 02mMultiple Airlines

Tue 12/1612:30 pmONT - EWR

1 stop23h 23mMultiple Airlines

Deal found 11/11

$222

Thu 12/410:00 pmEWR - ONT

2 stops21h 33mMultiple Airlines

Tue 12/912:30 pmONT - EWR

1 stop23h 23mMultiple Airlines

Deal found 11/12

$231

Thu 12/410:30 pmEWR - ONT

2 stops17h 40mMultiple Airlines

Sun 12/72:59 pmONT - EWR

1 stop16h 01mMultiple Airlines

Deal found 11/11

$249

Mon 11/2410:50 amEWR - ONT

1 stop23h 30mMultiple Airlines

Tue 12/212:30 pmONT - EWR

2 stops22h 03mMultiple Airlines

Deal found 11/12

$258

Mon 11/246:00 amEWR - ONT

1 stop8h 06mDelta

Thu 11/276:00 amONT - EWR

1 stop8h 41mDelta

Deal found 11/11

$283

Tue 11/2511:35 amEWR - ONT

2 stops29h 51mMultiple Airlines

Tue 12/212:30 pmONT - EWR

1 stop19h 18mMultiple Airlines

Deal found 11/12

$285

Fri 12/54:29 pmEWR - ONT

1 stop10h 00mAlaska Airlines

Sun 12/76:00 amONT - EWR

1 stop9h 26mAlaska Airlines

Deal found 11/12

$286

Thu 12/119:00 pmEWR - ONT

1 stop22h 33mMultiple Airlines

Thu 12/186:17 pmONT - EWR

2 stops16h 27mMultiple Airlines

Deal found 11/11

$290

Thu 12/49:00 pmEWR - ONT

1 stop22h 33mMultiple Airlines

Fri 12/126:15 amONT - EWR

2 stops12h 24mMultiple Airlines

Deal found 11/13

$292

Fri 12/126:39 amEWR - ONT

1 stop8h 21mAmerican Airlines

Sat 1/1712:57 pmONT - EWR

1 stop7h 20mAmerican Airlines

Deal found 11/11

$295

Best flights from Newark to Ontario
Discover carefully curated flight deals from Newark to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 13, 2025.

Fri 12/54:29 pmEWR - ONT

1 stop10h 00mAlaska Airlines

Sun 12/76:00 amONT - EWR

1 stop9h 26mAlaska Airlines

Deal found 11/12

$306

Wed 12/103:35 pmEWR - ONT

1 stop10h 29mDelta

Sat 12/131:29 pmONT - EWR

1 stop7h 30mDelta

Deal found 11/11

$307

Thu 1/293:00 pmEWR - ONT

2 stops11h 58mDelta

Tue 2/310:30 pmONT - EWR

2 stops10h 41mDelta

Deal found 11/11

$307

Wed 2/186:00 amEWR - ONT

1 stop8h 59mDelta

Mon 2/2310:20 pmONT - EWR

1 stop9h 33mDelta

Deal found 11/11

$308

Tue 3/37:29 pmEWR - ONT

1 stop22h 39mAlaska Airlines

Thu 3/127:00 amONT - EWR

1 stop8h 59mAlaska Airlines

Deal found 11/10

$348

Wed 12/105:30 pmEWR - ONT

2 stops9h 28mDelta

Sun 12/1410:25 pmONT - EWR

1 stop9h 26mDelta

Deal found 11/12

$312

Wed 12/107:14 amEWR - ONT

1 stop14h 19mAlaska Airlines

Thu 12/116:00 amONT - EWR

1 stop9h 26mAlaska Airlines

Deal found 11/13

$350

Thu 12/43:30 pmEWR - ONT

2 stops11h 28mDelta

Mon 12/84:49 pmONT - EWR

1 stop9h 25mDelta

Deal found 11/11

$312

Thu 12/47:14 amEWR - ONT

1 stop19h 15mAlaska Airlines

Mon 12/86:00 amONT - EWR

1 stop9h 26mAlaska Airlines

Deal found 11/12

$355

Fri 12/53:30 pmEWR - ONT

2 stops11h 28mDelta

Mon 12/810:25 pmONT - EWR

2 stops14h 36mDelta

Deal found 11/13

$317

Thu 2/54:36 pmEWR - ONT

1 stop10h 20mAlaska Airlines

Thu 2/126:14 amONT - EWR

1 stop9h 14mAlaska Airlines

Deal found 11/10

$364

Tue 12/911:55 amEWR - ONT

2 stops14h 09mDelta

Tue 12/166:40 amONT - EWR

2 stops14h 08mDelta

Deal found 11/11

$317

Last-minute flights from Newark to Ontario
Discover last-minute flight deals from Newark to Ontario. Data last updated November 13, 2025 and is based on user searches.

Mon 11/2410:50 amEWR - ONT

1 stop23h 30mMultiple Airlines

Tue 12/212:30 pmONT - EWR

2 stops22h 03mMultiple Airlines

Deal found 11/12

$258

Mon 11/246:00 amEWR - ONT

1 stop8h 06mDelta

Thu 11/276:00 amONT - EWR

1 stop8h 41mDelta

Deal found 11/11

$283

Tue 11/2511:35 amEWR - ONT

2 stops29h 51mMultiple Airlines

Tue 12/212:30 pmONT - EWR

1 stop19h 18mMultiple Airlines

Deal found 11/12

$285

Thu 12/410:00 pmEWR - ONT

2 stops21h 33mMultiple Airlines

Tue 12/912:30 pmONT - EWR

1 stop23h 23mMultiple Airlines

Deal found 11/12

$231

Thu 12/410:30 pmEWR - ONT

2 stops17h 40mMultiple Airlines

Sun 12/72:59 pmONT - EWR

1 stop16h 01mMultiple Airlines

Deal found 11/11

$249

Thu 12/49:00 pmEWR - ONT

1 stop22h 33mMultiple Airlines

Fri 12/126:15 amONT - EWR

2 stops12h 24mMultiple Airlines

Deal found 11/13

$292

Fri 12/54:29 pmEWR - ONT

1 stop10h 00mAlaska Airlines

Sun 12/76:00 amONT - EWR

1 stop9h 26mAlaska Airlines

Deal found 11/12

$286

Tue 12/95:15 amEWR - ONT

2 stops19h 02mMultiple Airlines

Tue 12/1612:30 pmONT - EWR

1 stop23h 23mMultiple Airlines

Deal found 11/11

$222

Thu 12/119:00 pmEWR - ONT

1 stop22h 33mMultiple Airlines

Thu 12/186:17 pmONT - EWR

2 stops16h 27mMultiple Airlines

Deal found 11/11

$290

Fri 12/126:39 amEWR - ONT

1 stop8h 21mAmerican Airlines

Sat 1/1712:57 pmONT - EWR

1 stop7h 20mAmerican Airlines

Deal found 11/11

$295

One-way flights from Newark to Ontario
Search for one-way flight options from Newark to Ontario. Find affordable one-way fares based on user searches. Data last updated November 13, 2025.

Wed 2/45:55 amEWR - ONT

2 stops38h 07mFrontier

Deal found 11/11

$97

Sat 12/1312:00 pmEWR - ONT

2 stops31h 33mMultiple Airlines

Deal found 11/11

$104

Fri 12/1210:30 pmEWR - ONT

2 stops18h 55mFrontier

Deal found 11/12

$105

Wed 12/313:59 pmEWR - ONT

1 stop19h 54mMultiple Airlines

Deal found 11/12

$107

Tue 12/95:15 amEWR - ONT

2 stops19h 02mMultiple Airlines

Deal found 11/11

$109

Tue 12/210:30 pmEWR - ONT

2 stops25h 47mFrontier

Deal found 11/11

$111

Tue 12/165:59 amEWR - ONT

2 stops18h 18mFrontier

Deal found 11/12

$112

Mon 12/810:30 pmEWR - ONT

2 stops25h 47mFrontier

Deal found 11/11

$114

Mon 1/510:30 pmEWR - ONT

2 stops24h 43mFrontier

Deal found 11/12

$116

Thu 12/1110:30 pmEWR - ONT

2 stops18h 55mFrontier

Deal found 11/11

$117

Mon 12/810:00 pmEWR - ONT

1 stop16h 27mMultiple Airlines

Deal found 11/12

$119

Cheap flight deals from Newark to Ontario

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$222 (Kiwi.com)
One-way from	$97 (Kiwi.com)
Popular in	December
Cheapest in	September
Average price	$354

Provider with most accurate pricing for Newark-Ontario flight deals.

Search Deals

Provider most trusted by Cheapflights users for Newark-Ontario flights.

Search Deals

From Newark to Ontario

Search Deals

One-way flight from Newark to Ontario

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($73 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($24 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in November 2025

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

NewarkOntario

EWR - ONT

EWRONT

Newark

Fri 12/5

4:29 pm-11:29 pm

1 stop10h 00m

Ontario

Sun 12/7

6:00 am-6:26 pm

1 stop9h 26m

$306

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 12/10

3:35 pm-11:04 pm

1 stop10h 29m

Ontario

Sat 12/13

1:29 pm-11:59 pm

1 stop7h 30m

$307

NewarkOntario

EWR - ONT

EWRONT

Newark

Thu 1/29

3:00 pm-11:58 pm

2 stops11h 58m

Ontario

Tue 2/3

10:30 pm-12:11 pm

2 stops10h 41m

$307

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 2/18

6:00 am-11:59 am

1 stop8h 59m

Ontario

Mon 2/23

10:20 pm-10:53 am

1 stop9h 33m

$308

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 12/10

5:30 pm-11:58 pm

2 stops9h 28m

Ontario

Sun 12/14

10:25 pm-10:51 am

1 stop9h 26m

$312

NewarkOntario

EWR - ONT

EWRONT

Newark

Thu 12/4

3:30 pm-11:58 pm

2 stops11h 28m

Ontario

Mon 12/8

4:49 pm-5:14 am

1 stop9h 25m

$312

NewarkOntario

EWR - ONT

EWRONT

Newark

Fri 12/5

3:30 pm-11:58 pm

2 stops11h 28m

Ontario

Mon 12/8

10:25 pm-4:01 pm

2 stops14h 36m

$317

NewarkOntario

EWR - ONT

EWRONT

Newark

Tue 12/9

11:55 am-11:04 pm

2 stops14h 09m

Ontario

Tue 12/16

6:40 am-11:48 pm

2 stops14h 08m

$317

NewarkOntario

EWR - ONT

EWRONT

Newark

Tue 3/3

7:29 pm-3:08 pm

1 stop22h 39m

Ontario

Thu 3/12

7:00 am-6:59 pm

1 stop8h 59m

$348

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 12/10

7:14 am-6:33 pm

1 stop14h 19m

Ontario

Thu 12/11

6:00 am-6:26 pm

1 stop9h 26m

$350

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 23 results

Compare providers for flights from Newark to Ontario

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

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
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars
CheapTicketsDeal	Price Accuracy3 stars	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 Newark Airport-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Newark Airport-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Newark Airport-Ontario flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Newark Airport-Ontario 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 Newark Airport-Ontario 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 Newark to Ontario

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

Prices

Delays

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

The best time to book flights from Newark Airport to Ontario is 20 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Newark Airport to Ontario (average of $90). Flying from Newark Airport to Ontario 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 EWR to ONT?

It’s optimal to fly from Newark Airport to Ontario in the evening. By choosing this option you can save up to 38% on the cost of your flight, compared to a flight in the afternoon.

Reviews of airlines servicing Ontario

Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Newark Airport to Ontario 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

8,007 reviews

Reviews

1 / 20

10.0

Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Delta

7.9

Good

8,007 reviews

Delta

7.9

Good

8,007 reviews

Reviews

1 / 20

10.0

Excellent

Kymberlee,Oct 2024

JFK - ATL

United Airlines

7.4

Good

9,017 reviews

Delta

7.9

Good

8,007 reviews

Reviews

1 / 20

10.0

Excellent

Kymberlee,Oct 2024

JFK - ATL

American Airlines

7.2

Good

11,051 reviews

Delta

7.9

Good

8,007 reviews

Reviews

1 / 20

10.0

Excellent

Kymberlee,Oct 2024

JFK - ATL

Spirit Airlines

6.3

Okay

8,139 reviews

Delta

7.9

Good

8,007 reviews

Reviews

1 / 20

10.0

Excellent

Kymberlee,Oct 2024

JFK - ATL

Related info for your journey

What airport do you fly into for flights to Ontario from Newark?
Ontario (ONT) is the airport you will fly into if you book a flight from Newark to Ontario. You should not have trouble finding flights to Ontario from Newark; the airport handles an average of 0 inbound flights from Newark per day. You should also have plenty of airline options to choose from since 4 airlines have flights to the Ontario airport from Newark. It is only a 3.1 mi journey from Ontario (ONT) to Ontario’s city center.
How long is the flight from Newark Airport to Ontario?
For as low as $306, Alaska Airlines can have you in Ontario from Newark Airport in 10h. The distance from Newark Airport to Ontario is about 2401 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Newark Airport to Ontario round-trip?
According to our current data, Spirit Airlines ($116), United Airlines ($267), and American Airlines ($276) offers the cheapest pricing from Newark Airport to Ontario. Spirit Airlines is priced at 70% lower than the current average price of a flight leaving 3 months from now.
Can I find deals for flights from Newark to Ontario that include hotel bookings?
Yes. In addition to deals on Newark to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Newark to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Newark to Ontario.
Can I find deals for business class flights from Newark to Ontario?
Yes. Cheapflights offers flight deals from Newark 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.
What is the cheapest month to book a flight from Newark Airport to Ontario?
Currently, August is the cheapest month in which you can book a flight from Newark Airport to Ontario (average of $90). Flying from Newark Airport to Ontario 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

Browse thousands of different options on Cheapflights for your next trip

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Other flights to Ontario

Top 4 airlines flying from Newark to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$116	Average$184	FlexibilityNo cancel fee	On-time65%
United Airlines	Cheapest$267	Average$389	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$276	Average$380	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$276	Average$411	FlexibilityNo cancel fee	On-timeN/A

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$97+ Cheap flights from Newark (EWR) 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Newark to Ontario with Cheapflights

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Cheapflights Tip: The best prices from Newark to Ontario are usually found in September or August, booked 20 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Find flight deals from Newark to Ontario

Cheapest flights from Newark to OntarioExplore the most affordable flight options available from Newark to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

Explore the most affordable flight options available from Newark to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

Cheap flight deals from Newark to Ontario

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 Newark Airport to Ontario that are best for you.

Compare providers for flights from Newark to Ontario

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 Newark to Ontario in November.

Best time to book a flight from Newark to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Newark with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Newark Airport to Ontario

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

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

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

How often are flights from Newark to Ontario delayed?

What is the most punctual flight time for Newark to Ontario flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on Newark to Ontario flights?

Reviews of airlines servicing Ontario

Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Newark Airport to Ontario 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 Newark 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 Newark?

How long is the flight from Newark Airport to Ontario?

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

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

How can I find direct flights from Newark to Ontario?

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Newark to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Newark to Ontario

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Cheapest flights from Newark to Ontario
Explore the most affordable flight options available from Newark to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.