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Cheap flights from Newark Airport to Los Angeles from $87

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 3/3. 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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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 - 1:11 pm
EWR
-
ONT
24h 06m
2 stops
Multiple Airlines Logo
4:00 pm - 5:54 pm
ONT
-
EWR
22h 54m
1 stop
$239Multiple Airlines
Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
10:14 pm - 9:34 pm
EWR
-
ONT
26h 20m
2 stops
Multiple Airlines Logo
5:10 pm - 5:54 pm
ONT
-
EWR
21h 44m
1 stop
$241Multiple Airlines
Mon, Mar 2 - Mon, Mar 9
Multiple Airlines Logo
4:05 pm - 1:11 pm
EWR
-
ONT
24h 06m
2 stops
Multiple Airlines Logo
4:00 pm - 5:54 pm
ONT
-
EWR
22h 54m
1 stop
$243Multiple Airlines
Wed, Mar 4 - Tue, Mar 10
Multiple Airlines Logo
3:30 pm - 11:59 pm
EWR
-
ONT
11h 29m
2 stops
Multiple Airlines Logo
4:00 pm - 5:54 pm
ONT
-
EWR
22h 54m
1 stop
$247Multiple Airlines
Sat, Mar 7 - Tue, Mar 10
Multiple Airlines Logo
4:05 pm - 2:29 pm
EWR
-
ONT
25h 24m
1 stop
Multiple Airlines Logo
9:40 pm - 10:00 pm
ONT
-
EWR
21h 20m
2 stops
$248Multiple Airlines
Wed, Mar 4 - Mon, Mar 9
Multiple Airlines Logo
5:59 am - 11:59 pm
EWR
-
ONT
21h 00m
2 stops
Multiple Airlines Logo
4:00 pm - 6:54 pm
ONT
-
EWR
23h 54m
1 stop
$250Multiple Airlines
Tue, Mar 10 - Tue, Mar 17
Multiple Airlines Logo
5:59 am - 11:59 pm
EWR
-
ONT
21h 00m
2 stops
Multiple Airlines Logo
4:00 pm - 5:54 pm
ONT
-
EWR
22h 54m
1 stop
$255Multiple Airlines
Fri, Mar 6 - Tue, Mar 10
Multiple Airlines Logo
4:05 pm - 1:11 pm
EWR
-
ONT
24h 06m
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
10:31 pm - 9:34 pm
EWR
-
ONT
26h 03m
2 stops
Multiple Airlines Logo
5:10 pm - 6:54 pm
ONT
-
EWR
22h 44m
1 stop
$260Multiple Airlines
Tue, Mar 3 - Wed, Mar 11
Multiple Airlines Logo
5:59 am - 11:59 pm
EWR
-
ONT
21h 00m
2 stops
Multiple Airlines Logo
5:10 pm - 6:54 pm
ONT
-
EWR
22h 44m
1 stop
$263Multiple Airlines
Sat, Mar 7 - Wed, Mar 11

American Airlines flights from Newark Airport to Ontario

Our best American Airlines deals on Newark Airport to Ontario flight tickets
American Airlines
Feb 20
EWR4:59 pmNewark
8h 30m
1 stop
ONT10:29 pmOntario
Feb 28
ONT9:53 amOntario
10h 33m
1 stop
EWR11:26 pmNewark
$311
American Airlines
Feb 17
EWR9:53 amNewark
11h 49m
2 stops
ONT6:42 pmOntario
Feb 24
ONT6:15 amOntario
11h 45m
2 stops
EWR9:00 pmNewark
$404
American Airlines
Feb 15
EWR5:30 pmNewark
7h 37m
1 stop
ONT10:07 pmOntario
Feb 20
ONT11:58 pmOntario
9h 32m
2 stops
EWR12:30 pmNewark
$428

United Airlines flights from Newark Airport to Ontario

Our best United Airlines deals on Newark Airport to Ontario flight tickets
United Airlines
Apr 8
EWR6:00 amNewark
9h 38m
1 stop
ONT12:38 pmOntario
Apr 14
ONT11:05 amOntario
9h 12m
1 stop
EWR11:17 pmNewark
$324
United Airlines
Feb 28
EWR8:35 amNewark
12h 06m
2 stops
ONT5:41 pmOntario
Mar 2
ONT6:37 pmOntario
8h 22m
1 stop
EWR5:59 amNewark
$325
United Airlines
Mar 4
EWR4:00 pmNewark
8h 59m
1 stop
ONT9:59 pmOntario
Mar 9
ONT11:59 pmOntario
7h 18m
1 stop
EWR10:17 amNewark
$329

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 February 3, 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

Tue 3/3

4:05 pm-1:11 pm

2 stops24h 06m

Ontario

Tue 3/10

4:00 pm-5:54 pm

1 stop22h 54m

$239

NewarkOntario

EWR - ONT

EWRONT

Newark

Mon 3/2

10:14 pm-9:34 pm

2 stops26h 20m

Ontario

Mon 3/9

5:10 pm-5:54 pm

1 stop21h 44m

$241

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 3/4

4:05 pm-1:11 pm

2 stops24h 06m

Ontario

Tue 3/10

4:00 pm-5:54 pm

1 stop22h 54m

$243

NewarkOntario

EWR - ONT

EWRONT

Newark

Sat 3/7

3:30 pm-11:59 pm

2 stops11h 29m

Ontario

Tue 3/10

4:00 pm-5:54 pm

1 stop22h 54m

$247

NewarkOntario

EWR - ONT

EWRONT

Newark

Wed 3/4

4:05 pm-2:29 pm

1 stop25h 24m

Ontario

Mon 3/9

9:40 pm-10:00 pm

2 stops21h 20m

$248

NewarkOntario

EWR - ONT

EWRONT

Newark

Tue 3/10

5:59 am-11:59 pm

2 stops21h 00m

Ontario

Tue 3/17

4:00 pm-6:54 pm

1 stop23h 54m

$250

NewarkOntario

EWR - ONT

EWRONT

Newark

Fri 3/6

5:59 am-11:59 pm

2 stops21h 00m

Ontario

Tue 3/10

4:00 pm-5:54 pm

1 stop22h 54m

$255

NewarkOntario

EWR - ONT

EWRONT

Newark

Tue 3/3

4:05 pm-1:11 pm

2 stops24h 06m

Ontario

Mon 3/9

5:10 pm-5:54 pm

1 stop21h 44m

$256

NewarkOntario

EWR - ONT

EWRONT

Newark

Tue 3/3

10:31 pm-9:34 pm

2 stops26h 03m

Ontario

Wed 3/11

5:10 pm-6:54 pm

1 stop22h 44m

$260

NewarkOntario

EWR - ONT

EWRONT

Newark

Sat 3/7

5:59 am-11:59 pm

2 stops21h 00m

Ontario

Wed 3/11

5:10 pm-6:54 pm

1 stop22h 44m

$263

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 $326.

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 $306. 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 evening 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 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 afternoon when prices are $336 on average. Flights to Ontario from Newark Airport in the afternoon 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 $389 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 February 2026, prices for Newark Airport to Ontario flights are approximately 1% 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 46m

Direct flights

None
The fastest flight from Newark Airport to Ontario takes 7h 46m
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 46m.

  • 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
8,407 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $276Free CancellationRating
7.2
11,218 reviews
Search American Airlines flights
DeltaPriceFrom $276Free CancellationRating
7.9
8,138 reviews
Search Delta flights
United AirlinesPriceFrom $282Free CancellationRating
7.4
9,236 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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