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Cheap flights from Newark Airport to Los Angeles from $98

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 1/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:15 pm - 2:29 pm
EWR
-
ONT
25h 14m1 stop
Multiple Airlines Logo
7:30 am - 10:37 am
ONT
-
EWR
24h 07m2 stops
$202Multiple Airlines
Wed, Feb 11 - Tue, Feb 17
Multiple Airlines Logo
4:05 pm - 7:26 am
EWR
-
ONT
18h 21m1 stop
Multiple Airlines Logo
6:00 am - 1:08 am
ONT
-
EWR
16h 08m2 stops
$203Multiple Airlines
Fri, Feb 20 - Sat, Feb 28
Multiple Airlines Logo
4:15 pm - 2:29 pm
EWR
-
ONT
25h 14m1 stop
Multiple Airlines Logo
7:30 am - 6:52 am
ONT
-
EWR
20h 22m2 stops
$212Multiple Airlines
Wed, Feb 11 - Wed, Feb 18
Multiple Airlines Logo
5:25 am - 12:20 am
EWR
-
ONT
21h 55m2 stops
Multiple Airlines Logo
3:36 pm - 5:54 pm
ONT
-
EWR
23h 18m1 stop
$221Multiple Airlines
Thu, Jan 29 - Mon, Feb 2
Multiple Airlines Logo
3:59 pm - 1:39 pm
EWR
-
ONT
24h 40m1 stop
Multiple Airlines Logo
7:15 am - 10:30 am
ONT
-
EWR
24h 15m2 stops
$228Multiple Airlines
Wed, Jan 7 - Wed, Jan 14
Multiple Airlines Logo
3:59 pm - 7:26 am
EWR
-
ONT
18h 27m1 stop
Multiple Airlines Logo
7:30 am - 10:37 am
ONT
-
EWR
24h 07m2 stops
$230Multiple Airlines
Fri, Feb 13 - Tue, Feb 17
Multiple Airlines Logo
4:15 pm - 2:27 pm
EWR
-
ONT
25h 12m1 stop
Multiple Airlines Logo
3:07 pm - 11:42 am
ONT
-
EWR
17h 35m2 stops
$232Multiple Airlines
Wed, Jan 21 - Tue, Jan 27
Multiple Airlines Logo
4:15 pm - 2:29 pm
EWR
-
ONT
25h 14m1 stop
Multiple Airlines Logo
6:43 pm - 5:54 pm
ONT
-
EWR
20h 11m2 stops
$250Multiple Airlines
Wed, Feb 11 - Mon, Feb 16
Multiple Airlines Logo
4:15 pm - 2:29 pm
EWR
-
ONT
25h 14m1 stop
Multiple Airlines Logo
6:00 am - 7:59 pm
ONT
-
EWR
10h 59m2 stops
$263Multiple Airlines
Wed, Feb 11 - Sat, Feb 14
Multiple Airlines Logo
6:30 am - 2:26 pm
EWR
-
ONT
10h 56m1 stop
Multiple Airlines Logo
2:34 pm - 4:33 am
ONT
-
EWR
10h 59m1 stop
$264Multiple Airlines
Sat, Jan 10 - Sun, Jan 11

American Airlines flights from Newark Airport to Ontario

Our best American Airlines deals on Newark Airport to Ontario flight tickets
American Airlines
Jan 20
EWR6:30 amNewark
8h 33m
1 stop
ONT12:03 pmOntario
Jan 27
ONT4:45 pmOntario
20h 45m
1 stop
EWR4:30 pmNewark
$277
Find similar
American Airlines
Jan 20
EWR9:59 amNewark
11h 21m
2 stops
ONT6:20 pmOntario
Jan 27
ONT9:59 amOntario
10h 22m
1 stop
EWR11:21 pmNewark
$282
Find similar
American Airlines
Jan 7
EWR4:59 pmNewark
8h 49m
1 stop
ONT10:48 pmOntario
Jan 14
ONT12:57 pmOntario
14h 03m
1 stop
EWR6:00 amNewark
$306
Find similar

United Airlines flights from Newark Airport to Ontario

Our best United Airlines deals on Newark Airport to Ontario flight tickets
United Airlines
Jan 17
EWR6:00 amNewark
9h 17m
1 stop
ONT12:17 pmOntario
Jan 17
ONT6:32 pmOntario
10h 55m
1 stop
EWR8:27 amNewark
$275
Find similar
United Airlines
Feb 10
EWR12:00 pmNewark
8h 43m
1 stop
ONT5:43 pmOntario
Feb 14
ONT1:45 pmOntario
6h 39m
1 stop
EWR11:24 pmNewark
$333
Find similar
United Airlines
Dec 23
EWR4:49 pmNewark
8h 36m
1 stop
ONT10:25 pmOntario
Jan 5
ONT11:59 pmOntario
7h 24m
1 stop
EWR10:23 amNewark
$470
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 18, 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

Wed 2/11

4:15 pm-2:29 pm

1 stop25h 14m

Ontario

Tue 2/17

7:30 am-10:37 am

2 stops24h 07m

$202

NewarkOntario

EWR - ONT

EWRONT

Newark

Fri 2/20

4:05 pm-7:26 am

1 stop18h 21m

Ontario

Sat 2/28

6:00 am-1:08 am

2 stops16h 08m

$203

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 2/11

4:15 pm-2:29 pm

1 stop25h 14m

Ontario

Wed 2/18

7:30 am-6:52 am

2 stops20h 22m

$212

NewarkOntario

EWR - ONT

EWRONT

Newark

Thu 1/29

5:25 am-12:20 am

2 stops21h 55m

Ontario

Mon 2/2

3:36 pm-5:54 pm

1 stop23h 18m

$221

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 1/7

3:59 pm-1:39 pm

1 stop24h 40m

Ontario

Wed 1/14

7:15 am-10:30 am

2 stops24h 15m

$228

NewarkOntario

EWR - ONT

EWRONT

Newark

Fri 2/13

3:59 pm-7:26 am

1 stop18h 27m

Ontario

Tue 2/17

7:30 am-10:37 am

2 stops24h 07m

$230

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 1/21

4:15 pm-2:27 pm

1 stop25h 12m

Ontario

Tue 1/27

3:07 pm-11:42 am

2 stops17h 35m

$232

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 2/11

4:15 pm-2:29 pm

1 stop25h 14m

Ontario

Mon 2/16

6:43 pm-5:54 pm

2 stops20h 11m

$250

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 2/11

4:15 pm-2:29 pm

1 stop25h 14m

Ontario

Sat 2/14

6:00 am-7:59 pm

2 stops10h 59m

$263

NewarkOntario

EWR - ONT

EWRONT

Newark

Sat 1/10

6:30 am-2:26 pm

1 stop10h 56m

Ontario

Sun 1/11

2:34 pm-4:33 am

1 stop10h 59m

$264

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 $393 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 $324 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

8h 07m

Direct flights

None
The fastest flight from Newark Airport to Ontario takes 8h 07m
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 8h 07m.

  • 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
8,190 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $276Free CancellationRating
7.2
11,055 reviews
Search American Airlines flights
DeltaPriceFrom $276Free CancellationRating
7.9
8,005 reviews
Search Delta flights
United AirlinesPriceFrom $280Free CancellationRating
7.4
9,092 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 $385, 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 9,092 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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