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Cheap flights from Newark Airport to Los Angeles from $88

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 2/27. 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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Find the cheapest flights from Newark Airport to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:05 pm - 2:29 pm
EWR
-
ONT
25h 24m
1 stop
Multiple Airlines Logo
8:40 am - 6:53 am
ONT
-
EWR
19h 13m
2 stops
$209Multiple Airlines
Wed, Feb 25 - Tue, Mar 3
Multiple Airlines Logo
4:05 pm - 2:29 pm
EWR
-
ONT
25h 24m
1 stop
Multiple Airlines Logo
6:00 am - 7:59 pm
ONT
-
EWR
10h 59m
2 stops
$227Multiple Airlines
Wed, Feb 25 - Sat, Feb 28
Multiple Airlines Logo
10:45 pm - 11:59 pm
EWR
-
ONT
28h 14m
2 stops
Multiple Airlines Logo
2:06 pm - 5:54 pm
ONT
-
EWR
24h 48m
1 stop
$240Multiple Airlines
Thu, Feb 19 - Thu, Feb 26
Multiple Airlines Logo
6:55 am - 11:56 pm
EWR
-
ONT
20h 01m
2 stops
Multiple Airlines Logo
7:40 pm - 6:31 pm
ONT
-
EWR
19h 51m
1 stop
$244Multiple Airlines
Wed, Apr 1 - Mon, Apr 6
Multiple Airlines Logo
4:12 pm - 6:45 pm
EWR
-
ONT
29h 33m
1 stop
Multiple Airlines Logo
7:40 pm - 6:31 pm
ONT
-
EWR
19h 51m
1 stop
$246Multiple Airlines
Wed, Apr 1 - Mon, Apr 6
Multiple Airlines Logo
4:12 pm - 6:45 pm
EWR
-
ONT
29h 33m
1 stop
Multiple Airlines Logo
6:20 am - 11:03 pm
ONT
-
EWR
13h 43m
2 stops
$251Multiple Airlines
Wed, Apr 1 - Tue, Apr 7
Multiple Airlines Logo
4:12 pm - 6:45 pm
EWR
-
ONT
29h 33m
1 stop
Multiple Airlines Logo
5:18 pm - 6:31 pm
ONT
-
EWR
22h 13m
1 stop
$255Multiple Airlines
Wed, Apr 1 - Tue, Apr 7
Multiple Airlines Logo
5:59 am - 9:34 pm
EWR
-
ONT
18h 35m
2 stops
Multiple Airlines Logo
5:10 pm - 5:54 pm
ONT
-
EWR
21h 44m
1 stop
$256Multiple Airlines
Tue, Mar 3 - Mon, Mar 9
Multiple Airlines Logo
3:54 pm - 11:59 pm
EWR
-
ONT
11h 05m
2 stops
Multiple Airlines Logo
7:40 pm - 6:31 pm
ONT
-
EWR
19h 51m
1 stop
$263Multiple Airlines
Tue, Mar 31 - Mon, Apr 6
Multiple Airlines Logo
3:54 pm - 11:59 pm
EWR
-
ONT
11h 05m
2 stops
Multiple Airlines Logo
5:18 pm - 6:31 pm
ONT
-
EWR
22h 13m
1 stop
$272Multiple Airlines
Tue, Mar 31 - Tue, Apr 7

Delta flights from Newark Airport to Ontario

Our best Delta deals on Newark Airport to Ontario flight tickets
Delta
Feb 10
EWR6:44 pmNewark
8h 14m
1 stop
ONT11:58 pmOntario
Feb 18
ONT10:20 pmOntario
8h 14m
1 stop
EWR9:34 amNewark
$317
Delta
Feb 10
EWR7:00 amNewark
12h 15m
2 stops
ONT4:15 pmOntario
Feb 14
ONT1:15 pmOntario
7h 38m
1 stop
EWR11:53 pmNewark
$322
Delta
Feb 11
EWR1:00 pmNewark
13h 58m
2 stops
ONT11:58 pmOntario
Feb 18
ONT10:20 pmOntario
13h 24m
2 stops
EWR2:44 pmNewark
$328

Alaska Airlines flights from Newark Airport to Ontario

Our best Alaska Airlines deals on Newark Airport to Ontario flight tickets
Alaska Airlines
May 6
EWR7:30 amNewark
10h 02m
1 stop
ONT2:32 pmOntario
May 12
ONT3:26 pmOntario
11h 33m
1 stop
EWR5:59 amNewark
$297
Alaska Airlines
Feb 25
EWR5:30 pmNewark
9h 22m
1 stop
ONT11:52 pmOntario
Mar 4
ONT6:14 amOntario
9h 14m
1 stop
EWR6:28 pmNewark
$315
Alaska Airlines
Feb 24
EWR5:30 pmNewark
9h 22m
1 stop
ONT11:52 pmOntario
Mar 3
ONT7:00 amOntario
8h 59m
1 stop
EWR6:59 pmNewark
$333

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 January 21, 2026.
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 2/25

4:05 pm-2:29 pm

1 stop25h 24m

Ontario

Tue 3/3

8:40 am-6:53 am

2 stops19h 13m

$209

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 2/25

4:05 pm-2:29 pm

1 stop25h 24m

Ontario

Sat 2/28

6:00 am-7:59 pm

2 stops10h 59m

$227

NewarkOntario

EWR - ONT

EWRONT

Newark

Thu 2/19

10:45 pm-11:59 pm

2 stops28h 14m

Ontario

Thu 2/26

2:06 pm-5:54 pm

1 stop24h 48m

$240

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 4/1

6:55 am-11:56 pm

2 stops20h 01m

Ontario

Mon 4/6

7:40 pm-6:31 pm

1 stop19h 51m

$244

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 4/1

4:12 pm-6:45 pm

1 stop29h 33m

Ontario

Mon 4/6

7:40 pm-6:31 pm

1 stop19h 51m

$246

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 4/1

4:12 pm-6:45 pm

1 stop29h 33m

Ontario

Tue 4/7

6:20 am-11:03 pm

2 stops13h 43m

$251

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 4/1

4:12 pm-6:45 pm

1 stop29h 33m

Ontario

Tue 4/7

5:18 pm-6:31 pm

1 stop22h 13m

$255

NewarkOntario

EWR - ONT

EWRONT

Newark

Tue 3/3

5:59 am-9:34 pm

2 stops18h 35m

Ontario

Mon 3/9

5:10 pm-5:54 pm

1 stop21h 44m

$256

NewarkOntario

EWR - ONT

EWRONT

Newark

Tue 3/31

3:54 pm-11:59 pm

2 stops11h 05m

Ontario

Mon 4/6

7:40 pm-6:31 pm

1 stop19h 51m

$263

NewarkOntario

EWR - ONT

EWRONT

Newark

Tue 3/31

3:54 pm-11:59 pm

2 stops11h 05m

Ontario

Tue 4/7

5:18 pm-6:31 pm

1 stop22h 13m

$272

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?

In the afternoon is the cheapest time of day to fly from Newark Airport to Ontario when you can find flight prices for as low as $335. Flying to Ontario in the afternoon 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 evening when prices are $336 on average. Flights to Ontario from Newark Airport in the evening 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 $387 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 $335 on momondo.

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

As of January 2026, prices for Newark Airport to Ontario flights are approximately 5% cheaper 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 33m

Direct flights

None
The fastest flight from Newark Airport to Ontario takes 7h 33m
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 33m.

  • 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
8,361 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $276Free CancellationRating
7.2
11,169 reviews
Search American Airlines flights
DeltaPriceFrom $276Free CancellationRating
7.9
8,087 reviews
Search Delta flights
United AirlinesPriceFrom $282Free CancellationRating
7.4
9,188 reviews
Search United Airlines flights

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.

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