S$241 Cheap Flights from Ontario to Newark Liberty Intl. Airport

View S$241 flight on Mon, 30 Mar, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at S$241 for one-way flights and S$644 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, 30 Mar - Fri, 3 Apr
ONT
Ontario
EWR
New York
S$644 Return, found 3 days ago
S$644
Return
found 3 days ago
Select Delta flight, departing Mon, 30 Mar from Ontario to New York, returning Fri, 3 Apr, priced at S$644 found 3 days ago
United
Mon, 30 Mar - Fri, 3 Apr
ONT
Ontario
EWR
New York
S$689 Return, found 3 days ago
S$689
Return
found 3 days ago
Select United flight, departing Mon, 30 Mar from Ontario to New York, returning Fri, 3 Apr, priced at S$689 found 3 days ago
Delta
Mon, 30 Mar - Fri, 3 Apr
ONT
Ontario
EWR
New York
S$705 Return, found 3 days ago
S$705
Return
found 3 days ago
Select Delta flight, departing Mon, 30 Mar from Ontario to New York, returning Fri, 3 Apr, priced at S$705 found 3 days ago
Delta
Mon, 30 Mar - Fri, 3 Apr
ONT
Ontario
EWR
New York
S$750 Return, found 3 days ago
S$750
Return
found 3 days ago
Select Delta flight, departing Mon, 30 Mar from Ontario to New York, returning Fri, 3 Apr, priced at S$750 found 3 days ago
Delta
Mon, 30 Mar - Fri, 3 Apr
ONT
Ontario
EWR
New York
S$777 Return, found 3 days ago
S$777
Return
found 3 days ago
Select Delta flight, departing Mon, 30 Mar from Ontario to New York, returning Fri, 3 Apr, priced at S$777 found 3 days ago
United
Mon, 30 Mar - Fri, 3 Apr
ONT
Ontario
EWR
New York
S$791 Return, found 3 days ago
S$791
Return
found 3 days ago
Select United flight, departing Mon, 30 Mar from Ontario to New York, returning Fri, 3 Apr, priced at S$791 found 3 days ago
United
Mon, 30 Mar - Fri, 3 Apr
ONT
Ontario
EWR
New York
S$793 Return, found 3 days ago
S$793
Return
found 3 days ago
Select United flight, departing Mon, 30 Mar from Ontario to New York, returning Fri, 3 Apr, priced at S$793 found 3 days ago
Delta
Mon, 30 Mar - Fri, 3 Apr
ONT
Ontario
EWR
New York
S$795 Return, found 3 days ago
S$795
Return
found 3 days ago
Select Delta flight, departing Mon, 30 Mar from Ontario to New York, returning Fri, 3 Apr, priced at S$795 found 3 days ago
Delta
Mon, 30 Mar - Fri, 3 Apr
ONT
Ontario
EWR
New York
S$801 Return, found 3 days ago
S$801
Return
found 3 days ago
Select Delta flight, departing Mon, 30 Mar from Ontario to New York, returning Fri, 3 Apr, priced at S$801 found 3 days ago
American Airlines
Mon, 30 Mar - Fri, 3 Apr
ONT
Ontario
EWR
New York
S$836 Return, found 3 days ago
S$836
Return
found 3 days ago
Select American Airlines flight, departing Mon, 30 Mar from Ontario to New York, returning Fri, 3 Apr, priced at S$836 found 3 days ago

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

September is typically the cheapest month to fly

From S$309 - S$504 per traveller.
Ontario to Newark Liberty Intl. Airport route information
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Newark Liberty Intl. Airport
Return price
S$644
Distance
3843 km

Perfect flights from Ontario to Newark Liberty Intl. Airport

Your Journey from Ontario to Newark Liberty Intl. Airport

Start your unforgettable journey with Expedia. Our broad selection of flights from Ontario to Newark Liberty Intl. Airport caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Delta, United, American Airlines. Our selection of flights from Los Angeles - Ontario Intl. to Newark Liberty Intl. Airport caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Ontario to Newark Liberty Intl. Airport Flights

Experience the joy of finding cheap flights from Los Angeles - Ontario Intl. to Newark Liberty Intl. Airport that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$241 and roundtrip prices from S$644*.
 

Pre-Flight Essentials

Ensure a smooth journey from Ontario to Newark Liberty Intl. Airport with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Newark Liberty Intl. Airport

Picture yourself stepping off the plane in Newark Liberty Intl. Airport and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Ontario to Newark Liberty Intl. Airport Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Ontario to Newark Liberty Intl. Airport.
 

Beyond the Flight – Exploring Newark Liberty Intl. Airport

With Expedia, your adventure extends beyond the flight. Explore Newark Liberty Intl. Airport at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Ontario to Newark Liberty Intl. Airport with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Ontario to Newark Liberty Intl. Airport with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

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 S$644. 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.

Explore a world of travel with Expedia

Newark Liberty Intl. Airport Airports

New York

Ontario to John F. Kennedy Intl.
S$455.90
Ontario Airports

Los Angeles

Los Angeles Intl. to Newark Liberty Intl. Airport
S$308.40

Burbank

Long Beach

*Available to Expedia members.