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Cheap flights from Newark Airport to Los Angeles from $110

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Newark Airport to Los Angeles departing on 1/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

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Multiple Airlines Logo
5:59 am - 11:59 pm
EWR
-
ONT
21h 00m2 stops
Multiple Airlines Logo
8:21 am - 5:54 pm
ONT
-
EWR
30h 33m1 stop
$211Multiple Airlines
Sat, Feb 14 - Sat, Feb 21
Multiple Airlines Logo
5:59 am - 7:59 am
EWR
-
ONT
29h 00m2 stops
Multiple Airlines Logo
8:21 am - 5:54 pm
ONT
-
EWR
30h 33m1 stop
$220Multiple Airlines
Sat, Feb 21 - Sat, Feb 28
Multiple Airlines Logo
4:15 pm - 2:27 pm
EWR
-
ONT
25h 12m1 stop
Multiple Airlines Logo
8:36 am - 6:47 am
ONT
-
EWR
19h 11m2 stops
$223Multiple Airlines
Wed, Jan 28 - Tue, Feb 10
Multiple Airlines Logo
4:15 pm - 2:27 pm
EWR
-
ONT
25h 12m1 stop
Multiple Airlines Logo
8:05 pm - 5:54 pm
ONT
-
EWR
18h 49m2 stops
$231Multiple Airlines
Wed, Jan 28 - Mon, Feb 9
Multiple Airlines Logo
10:30 pm - 3:07 pm
EWR
-
ONT
19h 37m2 stops
Multiple Airlines Logo
3:36 pm - 5:54 pm
ONT
-
EWR
23h 18m1 stop
$234Multiple Airlines
Mon, Jan 26 - Mon, Feb 9
Multiple Airlines Logo
4:05 pm - 7:26 am
EWR
-
ONT
18h 21m1 stop
Multiple Airlines Logo
8:35 am - 6:52 am
ONT
-
EWR
19h 17m2 stops
$235Multiple Airlines
Fri, Feb 13 - Tue, Feb 17
Multiple Airlines Logo
4:15 pm - 2:27 pm
EWR
-
ONT
25h 12m1 stop
Multiple Airlines Logo
3:36 pm - 5:54 pm
ONT
-
EWR
23h 18m1 stop
$237Multiple Airlines
Wed, Jan 28 - Mon, Feb 9
Multiple Airlines Logo
4:05 pm - 7:26 am
EWR
-
ONT
18h 21m1 stop
Multiple Airlines Logo
8:21 am - 8:05 am
ONT
-
EWR
20h 44m2 stops
$239Multiple Airlines
Fri, Feb 13 - Sat, Feb 21
Multiple Airlines Logo
4:05 pm - 7:26 am
EWR
-
ONT
18h 21m1 stop
Multiple Airlines Logo
8:21 am - 5:54 pm
ONT
-
EWR
30h 33m1 stop
$240Multiple Airlines
Fri, Feb 13 - Sat, Feb 21
Multiple Airlines Logo
5:59 am - 11:59 pm
EWR
-
ONT
21h 00m2 stops
Multiple Airlines Logo
2:06 pm - 5:54 pm
ONT
-
EWR
24h 48m1 stop
$242Multiple Airlines
Sat, Feb 14 - Thu, Feb 19

Alaska Airlines flights from Newark Airport to Ontario

Our best Alaska Airlines deals on Newark Airport to Ontario flight tickets
Alaska Airlines
Jan 21
EWR6:08 pmNewark
32h 48m
1 stop
ONT11:56 pmOntario
Feb 3
ONT11:53 amOntario
27h 31m
1 stop
EWR6:24 pmNewark
$304
Find similar
Alaska Airlines
Jan 22
EWR6:08 pmNewark
19h 51m
1 stop
ONT10:59 amOntario
Feb 3
ONT4:03 pmOntario
23h 21m
1 stop
EWR6:24 pmNewark
$309
Find similar
Alaska Airlines
Jan 22
EWR6:08 pmNewark
19h 51m
1 stop
ONT10:59 amOntario
Jan 29
ONT6:00 amOntario
9h 24m
1 stop
EWR6:24 pmNewark
$314
Find similar

Delta flights from Newark Airport to Ontario

Our best Delta deals on Newark Airport to Ontario flight tickets
Delta
Feb 3
EWR6:00 amNewark
8h 31m
1 stop
ONT11:31 amOntario
Feb 11
ONT7:30 amOntario
13h 10m
2 stops
EWR11:40 pmNewark
$338
Find similar
Delta
Feb 10
EWR1:00 pmNewark
13h 58m
2 stops
ONT11:58 pmOntario
Feb 13
ONT10:20 pmOntario
14h 42m
2 stops
EWR4:02 pmNewark
$343
Find similar
Delta
May 27
EWR12:05 pmNewark
9h 10m
1 stop
ONT6:15 pmOntario
May 27
ONT10:59 pmOntario
7h 37m
1 stop
EWR9:36 amNewark
$350
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Newark Airport to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 25, 2025.
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

Sat 2/14

5:59 am-11:59 pm

2 stops21h 00m

Ontario

Sat 2/21

8:21 am-5:54 pm

1 stop30h 33m

$211

NewarkOntario

EWR - ONT

EWRONT

Newark

Sat 2/21

5:59 am-7:59 am

2 stops29h 00m

Ontario

Sat 2/28

8:21 am-5:54 pm

1 stop30h 33m

$220

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 1/28

4:15 pm-2:27 pm

1 stop25h 12m

Ontario

Tue 2/10

8:36 am-6:47 am

2 stops19h 11m

$223

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 1/28

4:15 pm-2:27 pm

1 stop25h 12m

Ontario

Mon 2/9

8:05 pm-5:54 pm

2 stops18h 49m

$231

NewarkOntario

EWR - ONT

EWRONT

Newark

Mon 1/26

10:30 pm-3:07 pm

2 stops19h 37m

Ontario

Mon 2/9

3:36 pm-5:54 pm

1 stop23h 18m

$234

NewarkOntario

EWR - ONT

EWRONT

Newark

Fri 2/13

4:05 pm-7:26 am

1 stop18h 21m

Ontario

Tue 2/17

8:35 am-6:52 am

2 stops19h 17m

$235

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 1/28

4:15 pm-2:27 pm

1 stop25h 12m

Ontario

Mon 2/9

3:36 pm-5:54 pm

1 stop23h 18m

$237

NewarkOntario

EWR - ONT

EWRONT

Newark

Fri 2/13

4:05 pm-7:26 am

1 stop18h 21m

Ontario

Sat 2/21

8:21 am-8:05 am

2 stops20h 44m

$239

NewarkOntario

EWR - ONT

EWRONT

Newark

Fri 2/13

4:05 pm-7:26 am

1 stop18h 21m

Ontario

Sat 2/21

8:21 am-5:54 pm

1 stop30h 33m

$240

NewarkOntario

EWR - ONT

EWRONT

Newark

Sat 2/14

5:59 am-11:59 pm

2 stops21h 00m

Ontario

Thu 2/19

2:06 pm-5:54 pm

1 stop24h 48m

$242

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Newark Airport to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ontario?

In general, September is the cheapest month to fly from Newark Airport to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $296. If you aren’t able to travel during the month of September, then book flights to Ontario from Newark Airport during August instead. Flights to Ontario in August, while not as cheap as those in September, still average around $321.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Friday when prices can be found for as low as $302. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Newark Airport to Ontario for around $387.

What is the cheapest time of day to depart on your flight to Ontario?

At noon is the cheapest time of day to fly from Newark Airport to Ontario when you can find flight prices for as low as $334. Flying to Ontario at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $362 on average. Flights to Ontario from Newark Airport in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to Ontario from Newark Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $392 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Newark Airport for as low as $315 on momondo.

How have Newark Airport to Ontario flight prices changed over time?

As of December 2025, prices for Newark Airport to Ontario flights are approximately 24% more expensive when compared to flights at the same time last year.

When to book flights from Newark Airport to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Newark Airport to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Newark Airport to Ontario (EWR to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Newark Airport to Ontario

Fastest flight time

7h 56m

Direct flights

None
The fastest flight from Newark Airport to Ontario takes 7h 56m
There are no direct flights from Newark Airport to Ontario. There are no popular flight routes from Newark Airport to Ontario.
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  • How far is Newark to Ontario by plane?

    The distance between Newark and Ontario is about 2403.8 mi. A reasonable flight in good conditions will take 7h 56m.

  • When did momondo last update prices for flights from Newark Airport to Ontario Airport?

    Prices for flights from Newark Airport to Ontario Airport were last updated today.

  • How many operators does momondo search for flights from Newark Airport to Ontario Airport?

  • How old do you have to be to fly from Newark Airport to Ontario Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Newark Airport to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Newark Airport to Ontario?

Best airlines flying from Newark Airport to Ontario

Compare and see reviews for airlines that fly from Newark Airport to Ontario with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $116Free CancellationRating
6.3
8,203 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $276Free CancellationRating
7.2
11,056 reviews
Search American Airlines flights
DeltaPriceFrom $276Free CancellationRating
7.9
8,011 reviews
Search Delta flights
United AirlinesPriceFrom $280Free CancellationRating
7.4
9,114 reviews
Search United Airlines flights

  • United Airlines Flights From Newark Airport to Ontario

    United Airlines operates around 3 flights from Newark Airport to Ontario every week. The average price of these flights found in the last 72 hours has been $384, but momondo users have found United Airlines deals from Newark Airport to Ontario from as low as $280 round-trip. United Airlines has been scored 7.4/10 in 9,114 reviews.

Why use momondo?

Why should I use momondo to find a flight deal from New York to Ontario?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from New York.

Can I find flights from New York to Ontario with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Ontario from New York with this policy.

How can momondo help me find flights from New York to Ontario?

Once you have performed a search for New York to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from New York to Ontario right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Ontario from New York. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Ontario trip

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