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Cheap flights from Newark Airport to Los Angeles from $100

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 9/3. 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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Find the cheapest flights from Newark Airport to Los Angeles

Cheap round-trip flights

Logo
7:59 am - 11:33 amEWR-ONT
30h 34m1 stop
Logo
8:59 pm - 9:01 pmONT-EWR
21h 02m2 stops
$242
Find Deal
Wed, Sep 17 - Wed, Sep 24
American Airlines Logo
1:30 pm - 8:07 pmEWR-ONT
9h 37m1 stop
American Airlines Logo
10:09 am - 11:06 pmONT-EWR
9h 57m1 stop
$248American Airlines
Find Deal
Thu, Oct 23 - Fri, Oct 31
Logo
7:59 am - 7:54 pmEWR-ONT
14h 55m2 stops
Logo
8:00 am - 5:54 amONT-EWR
18h 54m1 stop
$254
Find Deal
Sat, Sep 20 - Wed, Sep 24
Delta Logo
6:00 am - 10:42 amEWR-ONT
7h 42m1 stop
Delta Logo
11:55 am - 12:56 amONT-EWR
10h 01m1 stop
$277Delta
Find Deal
Wed, Sep 17 - Wed, Oct 1
Delta Logo
6:00 am - 10:42 amEWR-ONT
7h 42m1 stop
Delta Logo
7:05 am - 5:55 pmONT-EWR
7h 50m1 stop
$287Delta
Find Deal
Wed, Sep 17 - Sat, Sep 27
Alaska Airlines Logo
4:29 pm - 12:03 amEWR-ONT
10h 34m1 stop
Alaska Airlines Logo
6:00 am - 6:29 pmONT-EWR
9h 29m1 stop
$290Alaska Airlines
Find Deal
Fri, Oct 17 - Tue, Oct 21
Alaska Airlines Logo
5:45 pm - 11:51 pmEWR-ONT
9h 06m1 stop
Alaska Airlines Logo
4:11 pm - 5:59 amONT-EWR
10h 48m1 stop
$291Alaska Airlines
Find Deal
Fri, Oct 24 - Tue, Oct 28
Hawaiian Airlines Logo
7:19 am - 2:12 pmEWR-ONT
9h 53m1 stop
Hawaiian Airlines Logo
3:06 pm - 5:59 amONT-EWR
11h 53m1 stop
$296Hawaiian Airlines
Find Deal
Wed, Sep 24 - Sat, Sep 27
United Airlines Logo
12:30 pm - 5:29 pmEWR-ONT
7h 59m1 stop
United Airlines Logo
6:50 pm - 7:16 amONT-EWR
9h 26m1 stop
$315United Airlines
Find Deal
Fri, Sep 19 - Mon, Sep 22
United Airlines Logo
3:52 pm - 9:24 pmEWR-ONT
8h 32m1 stop
United Airlines Logo
6:36 pm - 5:24 amONT-EWR
7h 48m1 stop
$318United Airlines
Find Deal
Fri, Sep 26 - Mon, Sep 29

American Airlines flights from Newark Airport to Ontario

Our best American Airlines deals on Newark Airport to Ontario flight tickets
American Airlines
Oct 23
EWR1:30 pmNewark
9h 37m
1 stop
ONT8:07 pmOntario
Oct 31
ONT10:09 amOntario
9h 57m
1 stop
EWR11:06 pmNewark
$248
Find similar
American Airlines
Sep 4
EWR7:00 amNewark
7h 56m
1 stop
ONT11:56 amOntario
Sep 11
ONT1:10 pmOntario
6h 49m
1 stop
EWR10:59 pmNewark
$272
Find similar
American Airlines
Sep 4
EWR7:00 amNewark
7h 56m
1 stop
ONT11:56 amOntario
Sep 11
ONT7:16 pmOntario
7h 29m
1 stop
EWR5:45 amNewark
$273
Find similar

Delta flights from Newark Airport to Ontario

Our best Delta deals on Newark Airport to Ontario flight tickets
Delta
Sep 17
EWR6:00 amNewark
7h 42m
1 stop
ONT10:42 amOntario
Oct 1
ONT11:55 amOntario
10h 01m
1 stop
EWR12:56 amNewark
$277
Find similar
Delta
Sep 17
EWR6:00 amNewark
7h 42m
1 stop
ONT10:42 amOntario
Sep 27
ONT7:05 amOntario
7h 50m
1 stop
EWR5:55 pmNewark
$287
Find similar
Delta
Sep 3
EWR12:10 pmNewark
10h 01m
1 stop
ONT7:11 pmOntario
Sep 5
ONT7:05 amOntario
7h 55m
1 stop
EWR6:00 pmNewark
$317
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 August 28, 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 9/17

7:59 am-11:33 am

1 stop30h 34m

Ontario

Wed 9/24

8:59 pm-9:01 pm

2 stops21h 02m

$242

NewarkOntario

EWR - ONT

EWRONT

Newark

Thu 10/23

1:30 pm-8:07 pm

1 stop9h 37m

Ontario

Fri 10/31

10:09 am-11:06 pm

1 stop9h 57m

$248

NewarkOntario

EWR - ONT

EWRONT

Newark

Sat 9/20

7:59 am-7:54 pm

2 stops14h 55m

Ontario

Wed 9/24

8:00 am-5:54 am

1 stop18h 54m

$254

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 9/17

6:00 am-10:42 am

1 stop7h 42m

Ontario

Wed 10/1

11:55 am-12:56 am

1 stop10h 01m

$277

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 9/17

6:00 am-10:42 am

1 stop7h 42m

Ontario

Sat 9/27

7:05 am-5:55 pm

1 stop7h 50m

$287

NewarkOntario

EWR - ONT

EWRONT

Newark

Fri 10/17

4:29 pm-12:03 am

1 stop10h 34m

Ontario

Tue 10/21

6:00 am-6:29 pm

1 stop9h 29m

$290

NewarkOntario

EWR - ONT

EWRONT

Newark

Fri 10/24

5:45 pm-11:51 pm

1 stop9h 06m

Ontario

Tue 10/28

4:11 pm-5:59 am

1 stop10h 48m

$291

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 9/24

7:19 am-2:12 pm

1 stop9h 53m

Ontario

Sat 9/27

3:06 pm-5:59 am

1 stop11h 53m

$296

NewarkOntario

EWR - ONT

EWRONT

Newark

Fri 9/19

12:30 pm-5:29 pm

1 stop7h 59m

Ontario

Mon 9/22

6:50 pm-7:16 am

1 stop9h 26m

$315

NewarkOntario

EWR - ONT

EWRONT

Newark

Fri 9/26

3:52 pm-9:24 pm

1 stop8h 32m

Ontario

Mon 9/29

6:36 pm-5:24 am

1 stop7h 48m

$318

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, August 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 $327. If you aren’t able to travel during the month of August, then book flights to Ontario from Newark Airport during September instead. Flights to Ontario in September, while not as cheap as those in August, still average around $347.

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 Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Newark Airport to Ontario for around $377.

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

In the evening is the cheapest time of day to fly from Newark Airport to Ontario when you can find flight prices for as low as $319. Flying to Ontario in the evening 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 $416 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 $316 on momondo.

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

As of August 2025, prices for Newark Airport to Ontario flights are approximately 3% 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

Direct flights

None
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 19m.

  • 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
8,028 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $271Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $276Free CancellationRating
7.9
7,977 reviews
Search Delta flights
United AirlinesPriceFrom $282Free CancellationRating
7.4
8,944 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.

An easier way to manage your Ontario trip

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