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Find cheap flights from Ontario to Newark Liberty Airport from $94

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Newark departing on 5/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 4/18
Thu 4/25

Search hundreds of travel sites at once for deals on flights to Newark Liberty Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Newark.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Newark.
In the last 7 days travelers have searched 47,600,107 times on KAYAK, and here is why:

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Cheap flight deals from Ontario to Newark

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Newark that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
2:11 pm - 11:50 amONT-EWR
18h 39m1 stop
10:47 am - 6:26 amEWR-ONT
22h 39m2 stops
Sat, Apr 20 - Tue, Apr 23
12:59 am - 1:30 pmONT-EWR
33h 31m2 stops
9:05 am - 7:47 pmEWR-ONT
13h 42m1 stop
Mon, Apr 15 - Tue, Apr 23
10:00 pm - 9:13 amONT-EWR
8h 13m1 stop
7:10 am - 12:12 pmEWR-ONT
8h 02m1 stop
$286Delta
Find Deal
Mon, Apr 15 - Wed, Apr 24
5:45 am - 7:14 pmONT-EWR
10h 29m2 stops
2:30 pm - 9:39 pmEWR-ONT
10h 09m2 stops
$296Delta
Find Deal
Tue, May 7 - Sat, May 11
6:25 am - 4:15 pmONT-EWR
6h 50m1 stop
1:42 pm - 8:42 pmEWR-ONT
10h 00m1 stop
$300American Airlines
Find Deal
Tue, Apr 23 - Fri, Apr 26
10:20 pm - 9:31 amONT-EWR
8h 11m1 stop
5:15 pm - 9:56 pmEWR-ONT
7h 41m1 stop
$310American Airlines
Find Deal
Tue, Apr 16 - Mon, Apr 22
4:41 pm - 2:45 pmONT-EWR
19h 04m1 stop
7:14 am - 4:05 pmEWR-ONT
11h 51m1 stop
$329Alaska Airlines
Find Deal
Fri, May 3 - Wed, May 8
6:00 am - 5:55 amONT-EWR
20h 55m1 stop
7:14 am - 4:05 pmEWR-ONT
11h 51m1 stop
$344Alaska Airlines
Find Deal
Wed, Apr 24 - Sat, May 4
6:25 pm - 5:40 amONT-EWR
8h 15m1 stop
1:00 pm - 9:11 pmEWR-ONT
11h 11m2 stops
$411United Airlines
Find Deal
Tue, Jul 30 - Wed, Aug 7
5:15 am - 11:41 amONT-EWR
27h 26m1 stop
2:35 pm - 11:04 pmEWR-ONT
11h 29m1 stop
$450United Airlines
Find Deal
Sun, Apr 21 - Wed, May 1

Flights from Ontario to Newark - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to Newark to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Ontario to Newark Liberty Airport?

The average price of all flights from Ontario to Newark Airport clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Newark Liberty Airport on a Tuesday and more expensive on a Thursday. On your return trip to Ontario, you should consider flying back on a Saturday, and avoid Sundays for better deals.

What is the cheapest month to fly from Ontario to Newark Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ontario to Newark Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Ontario to Newark Airport is January, where tickets cost $257 on average. On the other hand, the most expensive months are December and June, where the average cost of tickets is $427 and $417 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to Newark Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ontario to Newark Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 26 days before departure.

Which airlines provide the cheapest flights from Ontario to Newark Liberty Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Newark Liberty Airport from Ontario were found on American Airlines ($142) and Delta ($143), and the lowest round-trip tickets were found on Delta ($286) and American Airlines ($300).

How long does a flight from Ontario to Newark Liberty Airport take?

There are no direct flights for this route. The shortest travel duration to get to Newark Liberty Airport from Ontario is 6h 50m.

Good to know

Low season

January

High season

December

Cheapest flight

$94
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from Ontario to Newark Liberty Airport

When to book flights from Ontario to Newark

Are your dates flexible? Find out the best times to travel from Ontario to Newark based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Ontario to Newark Liberty Airport flights

  • What is the cheapest flight from Ontario to Newark Airport?

    In the last 3 days, the lowest price for a flight from Ontario to Newark Airport was $94 for a one-way ticket and $195 for a round-trip.

  • Do I need a passport to fly between Ontario and Newark Liberty Airport?

    No

  • Which aircraft models fly most regularly from Ontario to Newark Liberty Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Newark Liberty Airport?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Ontario and Newark Liberty Airport, with oneworld being the most commonly used for this route.

  • What is the most popular layover when flying to Newark Liberty Airport from Ontario?

    Phoenix is the most popular layover city among KAYAK users traveling from Ontario to Newark Liberty Airport.

  • Which is the best airline for flights from Ontario to Newark, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Ontario to Newark are Alaska Airlines and Delta. With an average price for the route of $483 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $466 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Ontario to Newark Liberty Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Newark Liberty Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Newark Liberty Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Newark Liberty Airport from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Newark Liberty Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Newark Liberty Airport with an airline and back to Ontario with another airline. Booking your flights between Ontario and EWR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Newark Liberty Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Newark Liberty Airport from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Ontario to Newark

Need help choosing which airline to fly with from Ontario to Newark? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to KAYAK reviews.
8.0
DeltaOverall score based on 11551 reviews
81entertainment
81overall
82boarding
75food
79comfort
86crew
Airline reviews

The main person that was coordinating everything was a short white/light skin Spanish man and he was very rude. It honestly made me feel like it was everyone’s First day at work. His announcements were very not reasonable and they did not make sense. The stewardess on the flight that made the announcements she didn’t even know what she was talking about she sounded inebriated. There were no snacks or drinks on our flight there wasn’t even much turbulence. This flight was not enjoyable nor was it what a Delta flight should be and just this past week I flew with Delta 3 times.

Read more about Delta

The main person that was coordinating everything was a short white/light skin Spanish man and he was very rude. It honestly made me feel like it was everyone’s First day at work. His announcements were very not reasonable and they did not make sense. The stewardess on the flight that made the announcements she didn’t even know what she was talking about she sounded inebriated. There were no snacks or drinks on our flight there wasn’t even much turbulence. This flight was not enjoyable nor was it what a Delta flight should be and just this past week I flew with Delta 3 times.

Horrible. First delta flight was delayed. I ran to my connecting flight and arrived to the gate 13 mins before departure. I told the gate agent “I’m here”, she told me flight was closed while giving my already confirmed seat to an stand by passenger. I said again “madam, I’m here with my confirmed seat” and she said “no you’re not here@ and gave two stand by people a boarding pass and let them board. I asked “madam, why do you do that?”, and she repeated “you’re not here”. That was very rude. I’m disappointed of delta. It used to have a good customer service. Things have changed, but not for good.

full flihgt but crew and passengers all helped eachother we landed early! however we then had to wait 40 minutes on the tarmac to get into the gate there were people trying get connecting flights, assume its an airport issue but still frustrating

Bad crew with full of attitude, bad plane. Pls get some new planes. No food, no drinks nothing

The crew was horrible. Cleo was the most unwelcoming flight attendant I’ve ever had.

The flight was overbooked and the staff at the gate started calling for volunteers to drop out and offering incentives. That delayed the flight

Do not get fooled by the term “Delta One” flat bed! The seats were super narrow. The ottoman for the feet was so narrow that when you recline the seat in flat bed position, you can only fit one foot in the 8” width space. There was only 1 flight attendant for First Class. The breakfast took 2 hours to get served. Instead of offering French Toast, the served bread pudding. The champagne with orange juice or Mimosa tasted terrible. Almost all the movies offered were ridiculously old. For a long flight from San Francisco to NY, it was frustrating! I DO NOT RECOMMEND this flight!!!

Really big guy next to me Attendants moved him to an open row

the entertainment for the flight from DAL-LGA was not available.

It was a very smooth ride. Not sure on a flight departing at midnight can be much better but it was late arriving and I had an early day so really just the logistics.

no wifi and the aircraft was very old with tiny 4” screens.

After we landed, we were held on the plane for 30 minutes. There was no one at the gate once we landed and we forced to sit on a plan that had already over an hour delayed.

Flawless trip. Pilot came out and introduced himself, welcomed everyone, made a light joke to put everyone at ease. Arrived quite early.

JetBlue's check-in was great, but there was an in-flight flight attendant who was very rude and unkind. I didn't realize that the bathrooms were already locked 30 mins prior to landing and needed to use the restroom. Instead of politely asking me to return, she rudely told me, 'No, bathrooms are locked! Go back to your seat!' The flight was more than an hour delay, which made me almost miss my connecting flight. I understand the reasoning, but the action they took to get a hold of maintenance was time consuming. It took them so long to get a hold of maintenance and for maintenance to get started. Most importantly, my 3 checked baggages are missing! I'm writing this review 3 days after my arrival to the Philippines, and my 3 checked baggages, where my wedding dress is, are all missing!

Safe takeoff and landing Better snacks and coffee. Headphones for the TV monitors.

I didn't like the 2 hour delay and then mechanical issue once we were on board.

Best Thing flight took less time than programmed, quick entry and exit. Recommended!

Long flight but food was good, with free pillow and blanket. CREW WAS GOOD.

For some reason, the seats on this flight seemed unusually uncomfortable. Speaking with friends who took another JetBlue flight later in the day, they brought up the same issue.

JetBlue has really gone downhill. They have all the problems without the discounted price. If you need to get anywhere in time, this is no longer the airlines for you

I liked that we arrived earlier, you could improve your snacks give away

We learned certain countries (a few) require a notarized letter from an ex to give permission for children to travel to those countries with the other spouse together with birth certificates. To find this out one hour before flying—not good. Nowhere is it documented by the airlines though they require it. Make sure about all documentation required.

The best part was we weren’t too delayed. Seating space in economy is insulting and about as uncomfortable as one could expect before mutiny breaks out. Prep for landing happened well over 45 minutes before wheels down: no final garbage pickup and it interrupted those of us who needed tray tables down for dinner, etc.

My luggage didn't make my transfer in Newark. It took 4 days to receive it even though I tried to pick it up at the airpory

Nice clean aircraft. Friendly crew. On time. Easy flight change.

Late by nearly 2 hours due to taking that long to change a tire on the plane.

Check in and boarding were very easy. Quite good food and a complimentary glass of wine with dinner. The acoustics on the TV difficult at times, and the options extensive though not very updated.

They cancelled our flight at the last minute due to mechanical issues. Rather, they “delayed” it till the next morning. A pain in the neck when traveling with two young children. Crew was really nice, which made up for it somewhat. This is the second flight from delta that was cancelled this year. Definitely going to fly another airline when possible

They makes us feel confident on the flight. There was no any cancelation and they are really helpful with us.

Flight was not comfortable and crew was rude and not wanted to help, i would never choose united if there is alternate options . not cooperative with baby

Cut off carry ons, had to check, got on and there was plenty of bin space. Disappointing.

One of the worst flights I have ever taken Delayed over an hour without communication from the crew; very scary Entertainment not working Crew NASTY cabin cold

May never fly American again Delay in take off WITHOUT EXPLANATION Cabin freezing Crew NASTY entertainment did not work entire flight

It was wonderful upgrading to first. Plane was so cold thou. Crew was great. Wish there was a food option in first for such a long flight. Doesnt matter the time of day. Chintzy.

The flight was so short that the lack of leg room didn't bother me for long. The plane was smaller so only two seats per row and there were chargers. However, they didn't serve any snacks.

Horrible trip. I won't fly AA again Boarding was a nightmare because they squeezed people into the waiting like sardines. My connection was 30 minutes and the run to the gate was horrible. Then the flight was canceled AFTER boarding. The Flight attendants did not know what to do and gave out the wrong instructions. They finally sent us to a different gate. Again, the waiting was like a sardine tin. The flight was okay and my baggage arrived fine.

American Airlines gets worse every time I fly them. This is the 3rd time they lost my bags in a year. I also think their employees do not care when I communicate that I’m unsatisfied with the airlines. I’m a credit card holder, fly first class, and an advantage member but I think that I’m finally going to make the switch to Delta.

My first time flying American Airlines, my first flight to CLT was wonderful and flight attendants was nice and had great customer service. My second flight from CLT to NY was very delayed due to whatever reason the crew was not greeting other than that I’m rate 8 .

Flight was delayed. Paid $250 per person to upgrade to first class. Seats didn’t even come with a screen for entertainment, didn’t get a blanket or pillow or anything, the poor hostesses looked like they were scrambling the entire time because there wasn’t enough of them. My premium economy seat on my previous flight was a better deal. Once at the airport (landed at midnight after 26 hours of travel) our bags didn’t arrive until after 2 AM. We kept asking the AA crew where our bags were and they told us for two hours “they should be coming out now” and offered little to no help in terms of what we could do to get our bags or where our bags were. They even disappeared into a back room for a solid 15-20 minutes when they got tired of not helping the dozen or so passengers waiting for two hours for their bags.

Ther is no fly,over book .and they let out in San pedro sula ,antil Monday 2 of October 2023

I like strict carry on policy. Quick to board, quick to leave. Less time at gate and get there quicker

comfortable flight. not fond of the idea to pay for every little detail. baggage checkin or carry ons, basic snack, or some sort of basic entertainment/wifi. would be nice to offer these as perks and stop with the penny pinching.

The seats were larger & more roomy than the old planes. the crew was excellent. . overall a very good flight.

No water for handwashing and they charged $5 for water. Spirit up-charges for every little thing and the planes themselves are old and nauseating.

It was the most smooth landing I have ever experienced (and I travel often). The crew was also very pleasant and the pilots kept us informed. Not even a drink unless a charge though is really bad!

My wife’s in a wheelchair excellent service from check-in to the gate on the plane off the excellent service all around excellent price

Wifi went from normal to very slow. Some sites wouldn't load

Flying with Spirit is simple- it’s a minimalist airline that gets you from Point A to Point B. I have flown Spirit many times & have never had a problem with it, just don’t expect luxury or convenience. And know that, because the tickets are so affordable, the real charge comes in the bags, food, & extra purchases. The planes are simple, modern, and clean. They function in a way that moves large amounts of people in a more efficient manner, so the seats aren’t the most comfortable but I always bring a pillow and have no problem. I will continue to fly Spirit & would recommend to others

Comfortable experience but the boarding process was not efficient and the delay in departure caused some anxieties for the connecting flight. Flight from FLL to LGA was on time but the legroom for a taller person was a bit uncomfortable

The seats had good room for the knees but the seats don't recline. The service was friendly from start to finish

Book cheap flights from Ontario to Newark

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to Newark found on KAYAK in the last 72 hours.
5/10Fri
1 stop
28h 54mONT-EWR
$94
4/17Wed
1 stop
19h 35mONT-EWR
$96
4/15Mon
1 stopAmerican Airlines
8h 11mONT-EWR
$142
4/17Wed
1 stopDelta
9h 58mONT-EWR
$143
4/13Sat
1 stopAmerican Airlines
8h 11mONT-EWR
$167
7/30Tue
1 stopUnited Airlines
8h 15mONT-EWR
$178
4/11Thu
1 stopDelta
7h 35mONT-EWR
$179
4/17Wed
1 stopAlaska Airlines
20h 55mONT-EWR
$192
4/23Tue
1 stopUnited Airlines
7h 08mONT-EWR
$193
4/18Thu
1 stopAlaska Airlines
30h 56mONT-EWR
$207

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Last minute flights from Ontario to Newark

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Ontario to Newark that are departing in the next 10 days.
3/21Thu
multi-stop
11h 51mONT-EWR
3/26Tue
multi-stop
18h 13mEWR-ONT
$461
3/21Thu
multi-stop
11h 51mONT-EWR
3/26Tue
multi-stop
20h 58mEWR-ONT
$468
3/23Sat
multi-stopAmerican Airlines
7h 56mONT-EWR
4/8Mon
multi-stopAmerican Airlines
8h 35mEWR-ONT
$542
3/23Sat
multi-stopAmerican Airlines
7h 56mONT-EWR
4/8Mon
multi-stopAmerican Airlines
8h 35mEWR-ONT
$553
3/23Sat
multi-stopDelta
6h 58mONT-EWR
4/3Wed
multi-stopDelta
7h 53mEWR-ONT
$591
3/20Wed
multi-stopAlaska Airlines
9h 29mONT-EWR
4/17Wed
multi-stopAlaska Airlines
11h 51mEWR-ONT
$599
3/19Tue
multi-stopDelta
14h 19mONT-EWR
4/29Mon
multi-stopDelta
11h 59mEWR-ONT
$609
3/21Thu
multi-stopAlaska Airlines
9h 29mONT-EWR
3/26Tue
multi-stopAlaska Airlines
12h 27mEWR-ONT
$652
3/22Fri
multi-stopUnited Airlines
8h 58mONT-EWR
3/25Mon
multi-stopUnited Airlines
8h 21mEWR-ONT
$754
3/23Sat
multi-stopUnited Airlines
11h 28mONT-EWR
3/30Sat
multi-stopUnited Airlines
12h 51mEWR-ONT
$824

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Ontario - Newark Liberty Airport Flights

Departure:

Ontario (ONT)United States

Destination:

Newark Liberty Airport (EWR)United States

Return flight deals:

Newark Liberty Airport - Ontario

Cabin classes: