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Cheap flights from Ontario to Los Angeles from $75

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Los Angeles departing on 6/24. 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 Ontario to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
1:33 pm - 7:00 pm
ONT
-
LAX
5h 27m
1 stop
Frontier Logo
12:14 pm - 7:51 pm
LAX
-
ONT
7h 37m
1 stop
$152Frontier
Wed, Jun 24 - Wed, Jul 1
Frontier Logo
1:33 pm - 7:00 pm
ONT
-
LAX
5h 27m
1 stop
Frontier Logo
7:55 pm - 3:08 pm
LAX
-
ONT
19h 13m
1 stop
$153Frontier
Tue, Jun 23 - Tue, Jun 30
Frontier Logo
3:40 pm - 9:25 am
ONT
-
LAX
17h 45m
1 stop
Frontier Logo
8:15 pm - 3:09 pm
LAX
-
ONT
18h 54m
1 stop
$170Frontier
Mon, Aug 10 - Tue, Aug 25
Frontier Logo
3:40 pm - 9:25 am
ONT
-
LAX
17h 45m
1 stop
Frontier Logo
10:19 pm - 3:09 pm
LAX
-
ONT
16h 50m
2 stops
$206Frontier
Mon, Aug 10 - Tue, Aug 25
Frontier Logo
8:36 pm - 5:07 pm
ONT
-
LAX
20h 31m
1 stop
Frontier Logo
6:02 pm - 12:48 pm
LAX
-
ONT
18h 46m
1 stop
$213Frontier
Mon, Jun 22 - Mon, Jun 29
Frontier Logo
8:33 pm - 10:08 pm
ONT
-
LAX
25h 35m
1 stop
Frontier Logo
2:54 pm - 11:49 pm
LAX
-
ONT
8h 55m
1 stop
$214Frontier
Wed, Aug 26 - Sat, Aug 29
Frontier Logo
1:33 pm - 7:00 pm
ONT
-
LAX
5h 27m
1 stop
Frontier Logo
6:02 pm - 3:08 pm
LAX
-
ONT
21h 06m
2 stops
$242Frontier
Wed, Jun 24 - Wed, Jul 1
Frontier Logo
1:33 pm - 7:00 pm
ONT
-
LAX
5h 27m
1 stop
Frontier Logo
7:55 pm - 12:48 pm
LAX
-
ONT
16h 53m
2 stops
$244Frontier
Tue, Jun 23 - Tue, Jun 30
Frontier Logo
11:58 am - 9:25 am
ONT
-
LAX
21h 27m
1 stop
Frontier Logo
7:07 pm - 12:53 pm
LAX
-
ONT
17h 46m
1 stop
$265Frontier
Fri, Jul 3 - Mon, Jul 6
Frontier Logo
1:27 pm - 7:20 pm
ONT
-
LAX
5h 53m
1 stop
Frontier Logo
12:14 pm - 7:48 pm
LAX
-
ONT
7h 34m
1 stop
$266Frontier
Wed, Aug 26 - Sat, Sep 5

Frontier flights from Ontario to Los Angeles

Our best Frontier deals on Ontario to Los Angeles flight tickets
Frontier
Jun 24
ONT1:33 pmOntario
5h 27m
1 stop
LAX7:00 pmLos Angeles
Jul 1
LAX12:14 pmLos Angeles
7h 37m
1 stop
ONT7:51 pmOntario
$152
Frontier
Jun 23
ONT1:33 pmOntario
5h 27m
1 stop
LAX7:00 pmLos Angeles
Jun 30
LAX7:55 pmLos Angeles
19h 13m
1 stop
ONT3:08 pmOntario
$153
Frontier
Aug 10
ONT3:40 pmOntario
17h 45m
1 stop
LAX9:25 amLos Angeles
Aug 25
LAX8:15 pmLos Angeles
18h 54m
1 stop
ONT3:09 pmOntario
$170

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Los Angeles 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 May 26, 2026.
Use the filters below to find and compare flights from Ontario to Los Angeles that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Wed 6/24

1:33 pm-7:00 pm

1 stop5h 27m

Los Angeles

Wed 7/1

12:14 pm-7:51 pm

1 stop7h 37m

$152

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Tue 6/23

1:33 pm-7:00 pm

1 stop5h 27m

Los Angeles

Tue 6/30

7:55 pm-3:08 pm

1 stop19h 13m

$153

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Mon 8/10

3:40 pm-9:25 am

1 stop17h 45m

Los Angeles

Tue 8/25

8:15 pm-3:09 pm

1 stop18h 54m

$170

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Mon 8/10

3:40 pm-9:25 am

1 stop17h 45m

Los Angeles

Tue 8/25

10:19 pm-3:09 pm

2 stops16h 50m

$206

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Mon 6/22

8:36 pm-5:07 pm

1 stop20h 31m

Los Angeles

Mon 6/29

6:02 pm-12:48 pm

1 stop18h 46m

$213

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Wed 8/26

8:33 pm-10:08 pm

1 stop25h 35m

Los Angeles

Sat 8/29

2:54 pm-11:49 pm

1 stop8h 55m

$214

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Wed 6/24

1:33 pm-7:00 pm

1 stop5h 27m

Los Angeles

Wed 7/1

6:02 pm-3:08 pm

2 stops21h 06m

$242

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Tue 6/23

1:33 pm-7:00 pm

1 stop5h 27m

Los Angeles

Tue 6/30

7:55 pm-12:48 pm

2 stops16h 53m

$244

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Fri 7/3

11:58 am-9:25 am

1 stop21h 27m

Los Angeles

Mon 7/6

7:07 pm-12:53 pm

1 stop17h 46m

$265

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Wed 8/26

1:27 pm-7:20 pm

1 stop5h 53m

Los Angeles

Sat 9/5

12:14 pm-7:48 pm

1 stop7h 34m

$266

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Los Angeles from

How to get the cheapest flight ticket from Ontario to Los Angeles

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

Can stopping save me money on Ontario to Los Angeles flights?

You could potentially save up to 67% on your flight if you consider stops on a Ontario to Los Angeles flight.

When to book flights from Ontario to Los Angeles

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

Cheap Ontario to Los Angeles (ONT to LAX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Los Angeles

Fastest flight time

6h 39m

Direct flights

None
The fastest flight from Ontario to Los Angeles takes 6h 39m
There are no direct flights from Ontario to Los Angeles. There are no popular flight routes from Ontario to Los Angeles.
Search flight deals

Frequently asked questions about flying from Ontario to Los Angeles

  • How far is Ontario to Los Angeles by plane?

    There are 38.0 mi between Ontario and Los Angeles. 6h 39m is a normal flight duration for this route.

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

    Prices for flights from Ontario Airport to Los Angeles Airport are updated daily.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Los Angeles Airport.

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

    The necessary travel and health documents for your Los Angeles Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Los Angeles?

Book flights to Los Angeles if you plan to visit one of these locations
Avalon
Laguna Beach
Big Bear Lake
Temecula
Carlsbad
Riverside
Big Bear
Malibu
Oceanside
San Clemente
Inglewood
Orange
Newport Beach
Pasadena
Huntington Beach
Ventura
Rancho Cucamonga
Buena Park
Irvine
Downey

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Los Angeles?

Finding the right flight to Los Angeles from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Los Angeles quick and easy, saving you time and money.

Can I find flights from Ontario to Los Angeles with flexible booking policies on momondo?

Yes. All flights to Los Angeles from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ontario to Los Angeles?

Once you have performed a search for Ontario to Los Angeles 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 Ontario to Los Angeles right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Los Angeles now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Los Angeles and let you know when they change.

An easier way to manage your Los Angeles trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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