Find Cheap Flights from Ontario to Newark (ONT - EWR)

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Wed 2/21
Wed 2/28
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Good to Know

Low Season:
March
Best time to beat the crowds
2%
expected price decrease
High Season:
December
Most popular time to fly
4%
expected price increase
Average Price:
$418
(avg. price over the last 2 weeks)
Good Deal:
$337
or less (round trip)

When to Book Flights from Ontario to Newark

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $336 or less.
The cheapest flight from Ontario to Newark was found 49 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
Morning departure is around 1% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Ontario to Newark Flights

How long does a flight from Ontario to Newark take?
An average nonstop flight takes 6h 59m, covering a distance of 2405 miles.
Which airlines provide the cheapest flights from Ontario to Newark?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($340), United ($350) and American Airlines ($380).
Do I need a passport to fly between Ontario and Newark?
No.
What’s the cheapest day of the week to fly Ontario to Newark?
For Ontario to Newark, Tuesday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Newark back to Ontario, the best deals are generally found on Tuesday, with Thursday being the most expensive.

Book cheap flights from Ontario to Newark (round-trip)

Airports
Origin
Ontario
$340
only
$340
Destination
Newark
$340
only
$340
Tue, May 1
ONT
EWR
8h 52m
Wed, May 9
EWR
ONT
7h 48m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 27
ONT
EWR
7h 26m
Tue, Apr 3
EWR
ONT
7h 44m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54708 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
SAN
SFO
Okay 5.3

The crew was very nice

It was a short flight. Didn’t dislike anything other than paying for TV/movies.

PUJ
ORD
Good 7.6

We left Chicago close to 6 hours late and they didn't bother to put anyones luggage onboard. So we arrive close to 6 hours late and no luggage so we have to wait in line to fill out paperwork to have our luggage located/delivered along with everybody else who had checked baggage. That can not be a cost effective way to run your business

COS
DEN
Mediocre 2.3

Nothing.

Delayed flights leading to incredibly tight connection times, staff inconsistent with messaging re the source of the delay, zero compassion for customers, offering $700-$1,400 to get off the plane when you charge $200 to change a flight 2 weeks in advance is especially galling! Will not fly with United again whenever there is a viable alternative to my destination.

SFO
IAD
Mediocre 3.3

Can’t think of anything nice to say...

On a cross-country flight from San Francisco to DC, you would think United could provide more than one snack option that is void of any nutritional value, and perhaps they could provide alternatives for their patrons with allergies. Is fresh fruit really too much to ask for on a 6-7 hour flight??

EWR
DEN
Good 6.3

No entertainment was available. Not working for whole plane

Wed, May 2
ONT
EWR
7h 06m
Sun, May 6
EWR
ONT
7h 48m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28339 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
DTW
MIA
Excellent 8.0

Easy check in.

Service staff was friendly enough; maybe I’m used to southwest. As someone who is anxious to fly smiling faces are always appreciate.

CLT
RSW
Excellent 10.0

No free wifi

SCL
DFW
Excellent 10.0

The professionalism from the entire crew. Very smooth flight. The in-flight meal was very good .

Even dow we were late departing Santiago Chile, we made it to Dallas in good time.

BUF
PHL
Mediocre 2.0

None of the experience was pleasant

First flight was delayed causing us to miss the 2nd flight and we ended sleeping on a chair at the airport waiting for a morning flight. AMERICAN AIRLINES didn't even have the decency to put us in a hotel for the night due to their delay. Then they added a 2nd lay over which was delayed for hours also. Traveling was to visit my mother who had cancer and I was sick so this made the trip even more distasteful.

ORD
CLE
Excellent 10.0

It was a very good fight

I didn't like the fact that the gate kept on changed 3-4 times and that it was delayed for an hour

Wed, Mar 28
ONT
EWR
7h 22m
Sun, Apr 1
EWR
ONT
8h 39m
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16124 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
DCA
ATL
Excellent 10.0

The in-flight movie was very much appreciated.

ATL
TGU
Mediocre 2.0

The service was horribly they dilate my flight 24 hours and I lose my flight yesterday because from Washington to Atlanta the flight was late and from Atlanta to Tegucigalpa leave early

LAX
SFO
Good 7.6

Crew was wonderful, fine flight, very prompt

Was unable to board an earlier flight without paying $75. If there are seats it shouldn't be so difficult to be moved.

DTW
SLC
Okay 5.3

Its a 3.5 hr flight. No charging outlets available. Food options very limited by the time they got to me, row 26. No in -seat entertainment screen. Hard seats.

DTW
RSW
Excellent 9.6

Free movies. Clean and modern look to airplane.

Could not get wifi to work.

Wed, Apr 11
ONT
EWR
8h 54m
Tue, Apr 17
EWR
ONT
10h 05m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Wed, May 16
ONT
EWR
7h 29m
Tue, May 22
EWR
ONT
9h 35m
Trip: 7 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54708 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
SAN
SFO
Okay 5.3

The crew was very nice

It was a short flight. Didn’t dislike anything other than paying for TV/movies.

ORD
CVG
Good 6.0

My checked luggage didn’t make it to cincinnati

DEN
BIL
Mediocre 2.3

Nothing

Delayed flights leading to incredibly tight connection times, staff inconsistent with messaging re the source of the delay, zero compassion for customers, offering $700-$1,400 to get off the plane when you charge $200 to change a flight 2 weeks in advance is especially galling! Will not fly with United again whenever there is a viable alternative to my destination.

LAX
SFO
Mediocre 3.3

Nothing

EWR
DEN
Good 6.3

No entertainment was available. Not working for whole plane

Sat, Jun 9
ONT
EWR
9h 12m
Tue, Jun 12
EWR
ONT
9h 21m
Trip: 4 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54708 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
CVG
Good 6.0

My checked luggage didn’t make it to cincinnati

IAH
SAL
Excellent 10.0

Great service in business class, as always.

Weather system on the way down, but the pilot and first officer were tops

MEM
EWR
Excellent 10.0

On time & courteous. & On board service was excellent

Nothing

DEN
BIL
Mediocre 2.3

Nothing

Delayed flights leading to incredibly tight connection times, staff inconsistent with messaging re the source of the delay, zero compassion for customers, offering $700-$1,400 to get off the plane when you charge $200 to change a flight 2 weeks in advance is especially galling! Will not fly with United again whenever there is a viable alternative to my destination.

COS
DEN
Mediocre 2.3

Nothing.

Delayed flights leading to incredibly tight connection times, staff inconsistent with messaging re the source of the delay, zero compassion for customers, offering $700-$1,400 to get off the plane when you charge $200 to change a flight 2 weeks in advance is especially galling! Will not fly with United again whenever there is a viable alternative to my destination.

Mon, Mar 12
ONT
EWR
6h 59m
Mon, Mar 19
EWR
ONT
7h 52m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 27
ONT
EWR
6h 59m
Sun, Apr 8
EWR
ONT
7h 40m
Trip: 13 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54708 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
EWR
DEN
Good 6.3

No entertainment was available. Not working for whole plane

DEN
BIL
Mediocre 2.3

Nothing

Delayed flights leading to incredibly tight connection times, staff inconsistent with messaging re the source of the delay, zero compassion for customers, offering $700-$1,400 to get off the plane when you charge $200 to change a flight 2 weeks in advance is especially galling! Will not fly with United again whenever there is a viable alternative to my destination.

SFO
PHL
Mediocre 2.3

Crew was nice

I hated my seat. Last row. Seat didn’t recline. Right next to the bathroom. That should not even be a row for passengers!

ORD
CVG
Good 6.0

My checked luggage didn’t make it to cincinnati

SFO
IAD
Mediocre 3.3

Can’t think of anything nice to say...

On a cross-country flight from San Francisco to DC, you would think United could provide more than one snack option that is void of any nutritional value, and perhaps they could provide alternatives for their patrons with allergies. Is fresh fruit really too much to ask for on a 6-7 hour flight??

Thu, Mar 22
ONT
EWR
7h 29m
Mon, Mar 26
EWR
ONT
8h 42m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Jun 2
ONT
EWR
7h 35m
Mon, Jun 4
EWR
ONT
9h 35m
Trip: 3 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54708 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
SFO
PHL
Mediocre 2.3

Crew was nice

I hated my seat. Last row. Seat didn’t recline. Right next to the bathroom. That should not even be a row for passengers!

PUJ
ORD
Good 7.6

We left Chicago close to 6 hours late and they didn't bother to put anyones luggage onboard. So we arrive close to 6 hours late and no luggage so we have to wait in line to fill out paperwork to have our luggage located/delivered along with everybody else who had checked baggage. That can not be a cost effective way to run your business

COS
DEN
Mediocre 2.3

Nothing.

Delayed flights leading to incredibly tight connection times, staff inconsistent with messaging re the source of the delay, zero compassion for customers, offering $700-$1,400 to get off the plane when you charge $200 to change a flight 2 weeks in advance is especially galling! Will not fly with United again whenever there is a viable alternative to my destination.

IAH
SAL
Excellent 10.0

Great service in business class, as always.

Weather system on the way down, but the pilot and first officer were tops

MEM
EWR
Excellent 10.0

On time & courteous. & On board service was excellent

Nothing

Tue, Jul 17
ONT
EWR
7h 22m
Tue, Jul 31
EWR
ONT
11h 10m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Tue, May 1
ONT
EWR
7h 49m
Fri, May 4
EWR
ONT
8h 35m
Trip: 4 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54708 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
SFO
PHL
Mediocre 2.3

Crew was nice

I hated my seat. Last row. Seat didn’t recline. Right next to the bathroom. That should not even be a row for passengers!

SFO
IAD
Mediocre 3.3

Can’t think of anything nice to say...

On a cross-country flight from San Francisco to DC, you would think United could provide more than one snack option that is void of any nutritional value, and perhaps they could provide alternatives for their patrons with allergies. Is fresh fruit really too much to ask for on a 6-7 hour flight??

SAN
SFO
Okay 5.3

The crew was very nice

It was a short flight. Didn’t dislike anything other than paying for TV/movies.

PUJ
ORD
Good 7.6

We left Chicago close to 6 hours late and they didn't bother to put anyones luggage onboard. So we arrive close to 6 hours late and no luggage so we have to wait in line to fill out paperwork to have our luggage located/delivered along with everybody else who had checked baggage. That can not be a cost effective way to run your business

MEM
EWR
Excellent 10.0

On time & courteous. & On board service was excellent

Nothing

Tue, Jul 10
ONT
EWR
9h 40m
Tue, Jul 17
EWR
ONT
8h 01m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jul 3
ONT
EWR
9h 40m
Tue, Jul 10
EWR
ONT
9h 12m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54708 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
LAX
SFO
Mediocre 3.3

Nothing

CTU
SFO
Mediocre 3.6

The breakfast on the international flight was pretty good. However, there were more frequent snacks and healthier options when I flew internationally on Delta.

I didn’t like that my pre-flight request for gluten-free snacks/meals was ignored. I didn’t like the attitude of one flight attendant who couldn’t bring herself to empathize with my allergy to gluten— which causes painful cracks in my palms and fingers.

COS
DEN
Mediocre 2.3

Nothing.

Delayed flights leading to incredibly tight connection times, staff inconsistent with messaging re the source of the delay, zero compassion for customers, offering $700-$1,400 to get off the plane when you charge $200 to change a flight 2 weeks in advance is especially galling! Will not fly with United again whenever there is a viable alternative to my destination.

EWR
DEN
Good 6.3

No entertainment was available. Not working for whole plane

PUJ
ORD
Good 7.6

We left Chicago close to 6 hours late and they didn't bother to put anyones luggage onboard. So we arrive close to 6 hours late and no luggage so we have to wait in line to fill out paperwork to have our luggage located/delivered along with everybody else who had checked baggage. That can not be a cost effective way to run your business

Fri, Feb 23
ONT
EWR
7h 00m
Sat, Feb 24
EWR
ONT
8h 16m
Trip: 2 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28339 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
BCN
JFK
Okay 5.6

We booked american because it was a direct flight. No explanation was given for the switch. Then we almost missed our connection because we sat on the tarmak in Barcelona for an hour. Again no explanation . Very stressful and irritating.

Having the flight switched from a direct to transferring in Madrid.

TUS
CLT
Excellent 10.0

No free wifi

CLT
RSW
Excellent 10.0

No free wifi

PHL
PVD
Okay 5.3

Flight was not completely full so I got an empty seat next to me.

We were delayed due to some balance issues.

SAT
DFW
Excellent 8.0

Smooth takeoff and landing. The seats were comfortable for a 3 hour flight.

Nothing to complain about. I was satisfied with this flight.

Tue, Aug 7
ONT
EWR
8h 15m
Tue, Aug 14
EWR
ONT
10h 57m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54708 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
CVG
Good 6.0

My checked luggage didn’t make it to cincinnati

LAX
SFO
Mediocre 3.3

Nothing

COS
DEN
Mediocre 2.3

Nothing.

Delayed flights leading to incredibly tight connection times, staff inconsistent with messaging re the source of the delay, zero compassion for customers, offering $700-$1,400 to get off the plane when you charge $200 to change a flight 2 weeks in advance is especially galling! Will not fly with United again whenever there is a viable alternative to my destination.

EWR
DEN
Good 6.3

No entertainment was available. Not working for whole plane

MEM
EWR
Excellent 10.0

On time & courteous. & On board service was excellent

Nothing

Fri, Aug 3
ONT
EWR
7h 22m
Tue, Aug 7
EWR
ONT
11h 10m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Feb 27
ONT
EWR
7h 02m
Wed, Feb 28
EWR
ONT
9h 13m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54708 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
SFO
IAD
Mediocre 3.3

Can’t think of anything nice to say...

On a cross-country flight from San Francisco to DC, you would think United could provide more than one snack option that is void of any nutritional value, and perhaps they could provide alternatives for their patrons with allergies. Is fresh fruit really too much to ask for on a 6-7 hour flight??

COS
DEN
Mediocre 2.3

Nothing.

Delayed flights leading to incredibly tight connection times, staff inconsistent with messaging re the source of the delay, zero compassion for customers, offering $700-$1,400 to get off the plane when you charge $200 to change a flight 2 weeks in advance is especially galling! Will not fly with United again whenever there is a viable alternative to my destination.

EWR
DEN
Good 6.3

No entertainment was available. Not working for whole plane

SAN
SFO
Okay 5.3

The crew was very nice

It was a short flight. Didn’t dislike anything other than paying for TV/movies.

ORD
CVG
Good 6.0

My checked luggage didn’t make it to cincinnati

Fri, Feb 23
ONT
EWR
7h 50m
Tue, Feb 27
EWR
ONT
15h 31m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Show more results

Ontario to Newark Flight Information

Flights Arrive in Newark
Flights Depart from Ontario
Flight Price $340
Distance 2405 miles
Airlines United, American Airlines, Delta
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.