฿5,270 Cheap Flights from Ontario (ONT) to Newark Liberty Intl. Airport (EWR)

View ฿5,270 flight on Wed, 7 Oct 2026Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Newark Liberty Intl. Airport (EWR)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Ontario (ONT) to Newark Liberty Intl. Airport (EWR)

Prices were available within the past 7 days and start at ฿5,270 for one-way flights and ฿12,120 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, 16 Oct - Tue, 20 Oct
ONT
Ontario
EWR
New York
฿12,120 Return, found 12 hours ago
฿12,120
Return
found 12 hours ago
Select United flight, departing Fri, 16 Oct from Ontario to New York, returning Tue, 20 Oct, priced at ฿12,120 found 12 hours ago
United
Fri, 16 Oct - Tue, 20 Oct
ONT
Ontario
EWR
New York
฿12,655 Return, found 12 hours ago
฿12,655
Return
found 12 hours ago
Select United flight, departing Fri, 16 Oct from Ontario to New York, returning Tue, 20 Oct, priced at ฿12,655 found 12 hours ago
United
Fri, 16 Oct - Tue, 20 Oct
ONT
Ontario
EWR
New York
฿12,845 Return, found 12 hours ago
฿12,845
Return
found 12 hours ago
Select United flight, departing Fri, 16 Oct from Ontario to New York, returning Tue, 20 Oct, priced at ฿12,845 found 12 hours ago
United
Fri, 16 Oct - Tue, 20 Oct
ONT
Ontario
EWR
New York
฿12,930 Return, found 12 hours ago
฿12,930
Return
found 12 hours ago
Select United flight, departing Fri, 16 Oct from Ontario to New York, returning Tue, 20 Oct, priced at ฿12,930 found 12 hours ago
United
Fri, 16 Oct - Tue, 20 Oct
ONT
Ontario
EWR
New York
฿13,380 Return, found 12 hours ago
฿13,380
Return
found 12 hours ago
Select United flight, departing Fri, 16 Oct from Ontario to New York, returning Tue, 20 Oct, priced at ฿13,380 found 12 hours ago
United
Fri, 16 Oct - Tue, 20 Oct
ONT
Ontario
EWR
New York
฿13,540 Return, found 12 hours ago
฿13,540
Return
found 12 hours ago
Select United flight, departing Fri, 16 Oct from Ontario to New York, returning Tue, 20 Oct, priced at ฿13,540 found 12 hours ago
American Airlines
Fri, 16 Oct - Tue, 20 Oct
ONT
Ontario
EWR
New York
฿13,560 Return, found 12 hours ago
฿13,560
Return
found 12 hours ago
Select American Airlines flight, departing Fri, 16 Oct from Ontario to New York, returning Tue, 20 Oct, priced at ฿13,560 found 12 hours ago
United
Fri, 16 Oct - Tue, 20 Oct
ONT
Ontario
EWR
New York
฿13,700 Return, found 12 hours ago
฿13,700
Return
found 12 hours ago
Select United flight, departing Fri, 16 Oct from Ontario to New York, returning Tue, 20 Oct, priced at ฿13,700 found 12 hours ago
United
Fri, 16 Oct - Tue, 20 Oct
ONT
Ontario
EWR
New York
฿13,845 Return, found 12 hours ago
฿13,845
Return
found 12 hours ago
Select United flight, departing Fri, 16 Oct from Ontario to New York, returning Tue, 20 Oct, priced at ฿13,845 found 12 hours ago
American Airlines
Fri, 16 Oct - Tue, 20 Oct
ONT
Ontario
EWR
New York
฿13,855 Return, found 12 hours ago
฿13,855
Return
found 12 hours ago
Select American Airlines flight, departing Fri, 16 Oct from Ontario to New York, returning Tue, 20 Oct, priced at ฿13,855 found 12 hours ago

Find the cheapest month to fly from Ontario (ONT) to New York (EWR)

September is typically the cheapest month to fly

From ฿7,631 - ฿12,592 per traveller.
Flight from Ontario to Newark Liberty Intl. Airport route information
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Newark Liberty Intl. Airport
Return price
฿12,120
Distance
3843 km
Average flight time
8 hours 20 mins

Perfect flights from Ontario to Newark Liberty Intl. Airport

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Ontario to Newark Liberty Intl. Airport. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Los Angeles - Ontario Intl. to Newark Liberty Intl. Airport ticket options cater to your travel preferences, with incredible one-way fares from ฿5,270 and roundtrip prices from ฿12,120. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Newark Liberty Intl. Airport and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Newark Liberty Intl. Airport.

Frequently asked questions

How much is a flight from Ontario Airport to Liberty Intl. Airport (EWR)?
If you're travelling from Los Angeles - Ontario Intl. Airport (ONT) to Newark Airport, round-trip flights start from ฿12,120. This price is based on fares listed within the last 7 days on Expedia for flights departing within the next year, so don't wait around. Book today and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Los Angeles - Ontario Intl. Airport (ONT) to Liberty Intl. Airport (EWR)?
Every air carrier has its own terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from Ontario Airport to Liberty Intl. Airport (EWR) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Ontario Airport to Liberty Intl. Airport (EWR) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from ONT to EWR?
Around 3,900 kilometres separates Ontario and Newark, so pack some entertainment to help you fill in a couple of hours. That latest bestseller you haven't had time to start will do the trick.
Which airlines fly direct from Ontario Airport to Newark Airport?
There are no direct flights, so you'll need to make at least one stop between ONT and Newark Airport. Take advantage of the layover time to stretch your legs and take a break.
Are ONT to EWR flight tickets cheaper when they're purchased at the last minute?
Booking last minute from Ontario Airport to EWR can be hit-or-miss. You might be lucky and score a bargain, but you could also miss out entirely! If you'd prefer to start your travel planning early on, Expedia compares flight deals up to a year in advance. Just bear in mind that not all airlines publish their prices so far in advance. Our top tip? Check back often as updates are made frequently.
*Available to Expedia members.