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Cheap flights from Los Angeles to Los Angeles from $73

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 7/8. 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

Find the cheapest flights from Los Angeles to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:30 am - 3:14 pm
LAX
-
ONT
8h 44m
1 stop
Frontier Logo
3:40 pm - 8:03 pm
ONT
-
LAX
4h 23m
1 stop
$142Frontier
Wed, Jul 8 - Wed, Jul 15
Frontier Logo
6:30 am - 3:14 pm
LAX
-
ONT
8h 44m
1 stop
Frontier Logo
3:40 pm - 9:25 am
ONT
-
LAX
17h 45m
1 stop
$144Frontier
Tue, Jul 7 - Tue, Jul 21
Frontier Logo
6:30 am - 3:14 pm
LAX
-
ONT
8h 44m
1 stop
Frontier Logo
1:38 pm - 9:25 am
ONT
-
LAX
19h 47m
1 stop
$153Frontier
Tue, Jul 7 - Tue, Jul 14
Frontier Logo
11:47 am - 4:10 pm
LAX
-
ONT
4h 23m
1 stop
Frontier Logo
11:38 am - 12:03 am
ONT
-
LAX
12h 25m
1 stop
$154Frontier
Wed, Oct 7 - Wed, Oct 21
Frontier Logo
10:27 pm - 10:21 am
LAX
-
ONT
11h 54m
1 stop
Frontier Logo
6:00 am - 8:12 am
ONT
-
LAX
26h 12m
1 stop
$168Frontier
Tue, Oct 13 - Mon, Oct 19
Frontier Logo
6:30 am - 3:14 pm
LAX
-
ONT
8h 44m
1 stop
Frontier Logo
3:34 pm - 9:24 pm
ONT
-
LAX
29h 50m
2 stops
$183Frontier
Tue, Aug 11 - Tue, Aug 18
Frontier Logo
6:30 am - 3:14 pm
LAX
-
ONT
8h 44m
1 stop
Frontier Logo
8:58 am - 9:59 pm
ONT
-
LAX
13h 01m
1 stop
$188Frontier
Sat, Jul 25 - Mon, Aug 3
Frontier Logo
11:47 am - 4:10 pm
LAX
-
ONT
4h 23m
1 stop
Frontier Logo
9:49 pm - 10:52 am
ONT
-
LAX
13h 03m
1 stop
$191Frontier
Tue, Sep 22 - Tue, Sep 29
Frontier Logo
7:07 pm - 12:48 pm
LAX
-
ONT
17h 41m
1 stop
Frontier Logo
8:58 am - 9:54 pm
ONT
-
LAX
12h 56m
1 stop
$202Frontier
Tue, Aug 4 - Sat, Aug 15
Frontier Logo
11:47 am - 4:10 pm
LAX
-
ONT
4h 23m
1 stop
Frontier Logo
6:00 am - 5:08 pm
ONT
-
LAX
11h 08m
2 stops
$203Frontier
Wed, Oct 7 - Wed, Oct 21

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Frontier flights from Los Angeles to Ontario

Our best Frontier deals on Los Angeles to Ontario flight tickets
Frontier
Jul 8
LAX6:30 amLos Angeles
8h 44m
1 stop
ONT3:14 pmOntario
Jul 15
ONT3:40 pmOntario
4h 23m
1 stop
LAX8:03 pmLos Angeles
$142
Frontier
Jul 7
LAX6:30 amLos Angeles
8h 44m
1 stop
ONT3:14 pmOntario
Jul 21
ONT3:40 pmOntario
17h 45m
1 stop
LAX9:25 amLos Angeles
$144
Frontier
Jul 7
LAX6:30 amLos Angeles
8h 44m
1 stop
ONT3:14 pmOntario
Jul 14
ONT1:38 pmOntario
19h 47m
1 stop
LAX9:25 amLos Angeles
$153

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 June 11, 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
Quickest round-trip

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Wed 7/8

6:30 am-3:14 pm

1 stop8h 44m

Ontario

Wed 7/15

3:40 pm-8:03 pm

1 stop4h 23m

$142

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Tue 7/7

6:30 am-3:14 pm

1 stop8h 44m

Ontario

Tue 7/21

3:40 pm-9:25 am

1 stop17h 45m

$144

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Tue 7/7

6:30 am-3:14 pm

1 stop8h 44m

Ontario

Tue 7/14

1:38 pm-9:25 am

1 stop19h 47m

$153

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Wed 10/7

11:47 am-4:10 pm

1 stop4h 23m

Ontario

Wed 10/21

11:38 am-12:03 am

1 stop12h 25m

$154

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Tue 10/13

10:27 pm-10:21 am

1 stop11h 54m

Ontario

Mon 10/19

6:00 am-8:12 am

1 stop26h 12m

$168

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Tue 8/11

6:30 am-3:14 pm

1 stop8h 44m

Ontario

Tue 8/18

3:34 pm-9:24 pm

2 stops29h 50m

$183

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Sat 7/25

6:30 am-3:14 pm

1 stop8h 44m

Ontario

Mon 8/3

8:58 am-9:59 pm

1 stop13h 01m

$188

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Tue 9/22

11:47 am-4:10 pm

1 stop4h 23m

Ontario

Tue 9/29

9:49 pm-10:52 am

1 stop13h 03m

$191

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Tue 8/4

7:07 pm-12:48 pm

1 stop17h 41m

Ontario

Sat 8/15

8:58 am-9:54 pm

1 stop12h 56m

$202

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Wed 10/7

11:47 am-4:10 pm

1 stop4h 23m

Ontario

Wed 10/21

6:00 am-5:08 pm

2 stops11h 08m

$203

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

4h 23m

Direct flights

None
The fastest flight from Los Angeles to Ontario takes 4h 23m
There are no direct flights from Los Angeles to Ontario. There are no popular flight routes from Los Angeles to Ontario.
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Frequently asked questions about flying from Los Angeles to Ontario

  • 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. 4h 23m is a normal flight duration for this route.

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

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

  • How old do you have to be to fly from 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 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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Sat 7/11
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