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Cheap flights from Los Angeles to Los Angeles from $76

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Los Angeles to Los Angeles departing on 4/15. 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
1 adult, Economy, 0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:03 am - 6:49 pm
LAX
-
ONT
8h 46m
1 stop
Multiple Airlines Logo
11:44 am - 4:15 pm
ONT
-
LAX
4h 31m
1 stop
$132Multiple Airlines
Tue, Apr 14 - Tue, Apr 21
Frontier Logo
5:11 pm - 6:49 pm
LAX
-
ONT
25h 38m
1 stop
Frontier Logo
11:44 am - 4:15 pm
ONT
-
LAX
4h 31m
1 stop
$134Frontier
Tue, Apr 14 - Tue, Apr 21
Multiple Airlines Logo
11:12 am - 6:49 pm
LAX
-
ONT
7h 37m
1 stop
Multiple Airlines Logo
11:44 am - 4:15 pm
ONT
-
LAX
4h 31m
1 stop
$139Multiple Airlines
Wed, Apr 15 - Wed, Apr 22
Frontier Logo
12:08 pm - 7:32 pm
LAX
-
ONT
7h 24m
1 stop
Frontier Logo
11:36 am - 9:03 am
ONT
-
LAX
21h 27m
1 stop
$152Frontier
Sat, May 9 - Mon, May 11
Multiple Airlines Logo
11:21 am - 6:49 pm
LAX
-
ONT
7h 28m
1 stop
Multiple Airlines Logo
8:59 pm - 9:03 am
ONT
-
LAX
12h 04m
1 stop
$153Multiple Airlines
Wed, Apr 29 - Mon, May 4
Multiple Airlines Logo
4:07 pm - 9:00 pm
LAX
-
ONT
4h 53m
1 stop
Multiple Airlines Logo
11:44 am - 4:15 pm
ONT
-
LAX
4h 31m
1 stop
$156Multiple Airlines
Wed, Apr 8 - Tue, Apr 14
Frontier Logo
12:08 pm - 7:32 pm
LAX
-
ONT
7h 24m
1 stop
Frontier Logo
11:36 am - 9:03 am
ONT
-
LAX
21h 27m
1 stop
$157Frontier
Sat, May 9 - Mon, May 11
Frontier Logo
5:11 pm - 8:24 am
LAX
-
ONT
15h 13m
1 stop
Frontier Logo
8:59 pm - 9:03 am
ONT
-
LAX
12h 04m
1 stop
$158Frontier
Wed, Apr 29 - Mon, May 4
Frontier Logo
8:35 pm - 8:04 am
LAX
-
ONT
11h 29m
1 stop
Frontier Logo
11:47 am - 5:14 pm
ONT
-
LAX
5h 27m
1 stop
$159Frontier
Sun, Apr 12 - Thu, Apr 16
Frontier Logo
10:53 pm - 11:39 am
LAX
-
ONT
12h 46m
1 stop
Frontier Logo
9:02 pm - 4:15 pm
ONT
-
LAX
19h 13m
1 stop
$160Frontier
Fri, Apr 10 - Mon, Apr 13

Frontier flights from Los Angeles to Ontario

Our best Frontier deals on Los Angeles to Ontario flight tickets
Frontier
Apr 14
LAX5:11 pmLos Angeles Los Angeles
25h 38m
1 stop
ONT6:49 pmOntario
Apr 21
ONT11:44 amOntario
4h 31m
1 stop
LAX4:15 pmLos Angeles Los Angeles
$134
Frontier
May 9
LAX12:08 pmLos Angeles Los Angeles
7h 24m
1 stop
ONT7:32 pmOntario
May 11
ONT11:36 amOntario
21h 27m
1 stop
LAX9:03 amLos Angeles Los Angeles
$152
Frontier
May 9
LAX12:08 pmLos Angeles Los Angeles
7h 24m
1 stop
ONT7:32 pmOntario
May 11
ONT11:36 amOntario
21h 27m
1 stop
LAX9:03 amLos Angeles Los Angeles
$157

momondo Fare Finder

 
Customize your flight search to find flights from Los Angeles 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 March 20, 2026.
Use the filters below to find and compare flights from Los Angeles to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles Los Angeles

Tue 4/14

10:03 am-6:49 pm

1 stop8h 46m

Ontario

Tue 4/21

11:44 am-4:15 pm

1 stop4h 31m

$132

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles Los Angeles

Tue 4/14

5:11 pm-6:49 pm

1 stop25h 38m

Ontario

Tue 4/21

11:44 am-4:15 pm

1 stop4h 31m

$134

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles Los Angeles

Wed 4/15

11:12 am-6:49 pm

1 stop7h 37m

Ontario

Wed 4/22

11:44 am-4:15 pm

1 stop4h 31m

$139

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles Los Angeles

Sat 5/9

12:08 pm-7:32 pm

1 stop7h 24m

Ontario

Mon 5/11

11:36 am-9:03 am

1 stop21h 27m

$152

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles Los Angeles

Wed 4/29

11:21 am-6:49 pm

1 stop7h 28m

Ontario

Mon 5/4

8:59 pm-9:03 am

1 stop12h 04m

$153
Quickest round-trip

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles Los Angeles

Wed 4/8

4:07 pm-9:00 pm

1 stop4h 53m

Ontario

Tue 4/14

11:44 am-4:15 pm

1 stop4h 31m

$156

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles Los Angeles

Sat 5/9

12:08 pm-7:32 pm

1 stop7h 24m

Ontario

Mon 5/11

11:36 am-9:03 am

1 stop21h 27m

$157

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles Los Angeles

Wed 4/29

5:11 pm-8:24 am

1 stop15h 13m

Ontario

Mon 5/4

8:59 pm-9:03 am

1 stop12h 04m

$158

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles Los Angeles

Sun 4/12

8:35 pm-8:04 am

1 stop11h 29m

Ontario

Thu 4/16

11:47 am-5:14 pm

1 stop5h 27m

$159

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles Los Angeles

Fri 4/10

10:53 pm-11:39 am

1 stop12h 46m

Ontario

Mon 4/13

9:02 pm-4:15 pm

1 stop19h 13m

$160

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 Los Angeles 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 airline that flies from Los Angeles Los Angeles to Ontario?

Frontier is the most popular carrier operating from Los Angeles Los Angeles to Ontario

When to book flights from Los Angeles to Ontario

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

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

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

Fastest flight time

5h 17m

Direct flights

None
The fastest flight from Los Angeles to Ontario takes 5h 17m
There are no direct flights from Los Angeles to Ontario. There are no popular flight routes from Los Angeles to Ontario.
Search flight deals

  • How far is Los Angeles Los Angeles to Ontario by plane?

    The distance between Los Angeles Los Angeles and Ontario is about 38.0 mi. 5h 17m is a normal flight duration for this route.

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

    Prices for flights from Los Angeles Los Angeles Airport to Ontario Airport refresh daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Los Angeles Los Angeles Airport to Ontario Airport.

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

    The necessary travel and health documents for your Ontario 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.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Los Angeles to Ontario for you.

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

Yes. momondo allows you to filter the results for Los Angeles to Ontario flights to just show those with flexible booking policies.

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

Once all potential Los Angeles to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Los Angeles to Ontario right now. Can momondo alert me if prices change?

Price alerts on flights to Ontario from Los Angeles are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ontario trip

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Sun 4/19
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