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Cheap flights from Los Angeles to Los Angeles from $91

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 9/15. 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

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
8:44 am - 7:36 pmLAX  Los Angeles-ONT Ontario
10h 52m1 stop San Francisco
Frontier Logo
11:45 am - 12:10 amONT  Ontario-LAX Los Angeles
12h 25m1 stop Denver Intl
$111Frontier
Thu, Sep 10 - Wed, Sep 16
Frontier Logo
2:01 pm - 11:50 pmLAX  Los Angeles-ONT Ontario
9h 49m1 stop Denver Intl
Frontier Logo
6:15 am - 2:40 pmONT  Ontario-LAX Los Angeles
8h 25m1 stop Denver Intl
$118Frontier
Wed, Oct 14 - Tue, Oct 20
Frontier Logo
7:13 pm - 2:27 pmLAX  Los Angeles-ONT Ontario
19h 14m1 stop San Francisco
Frontier Logo
2:30 pm - 7:47 amONT  Ontario-LAX Los Angeles
17h 17m1 stop Las Vegas Harry Reid Intl
$146Frontier
Tue, Sep 1 - Wed, Sep 30
Frontier Logo
8:11 am - 11:47 pmLAX  Los Angeles-ONT Ontario
15h 36m2 stops Salt Lake City Denver Intl
Frontier Logo
11:45 am - 12:10 amONT  Ontario-LAX Los Angeles
12h 25m1 stop Denver Intl
$147Frontier
Sat, Sep 12 - Sat, Sep 19
Frontier Logo
8:44 am - 7:36 pmLAX  Los Angeles-ONT Ontario
10h 52m1 stop San Francisco
Frontier Logo
12:07 pm - 10:37 amONT  Ontario-LAX Los Angeles
22h 30m1 stop San Francisco
$150Frontier
Thu, Sep 10 - Mon, Sep 14
Frontier Logo
6:05 am - 10:30 amLAX  Los Angeles-ONT Ontario
28h 25m1 stop Denver Intl
Frontier Logo
8:00 am - 3:01 pmONT  Ontario-LAX Los Angeles
7h 01m1 stop Las Vegas Harry Reid Intl
$151Frontier
Fri, Sep 11 - Fri, Sep 18
Frontier Logo
8:50 am - 7:36 pmLAX  Los Angeles-ONT Ontario
10h 46m2 stops Phoenix Sky Harbor Intl San Francisco
Frontier Logo
11:45 am - 12:10 amONT  Ontario-LAX Los Angeles
12h 25m1 stop Denver Intl
$155Frontier
Thu, Sep 10 - Wed, Sep 16
Frontier Logo
7:44 pm - 7:36 pmLAX  Los Angeles-ONT Ontario
23h 52m1 stop San Francisco
Frontier Logo
2:30 pm - 6:44 pmONT  Ontario-LAX Los Angeles
4h 14m1 stop Las Vegas Harry Reid Intl
$160Frontier
Thu, Sep 10 - Thu, Sep 17
Frontier Logo
2:01 pm - 11:50 pmLAX  Los Angeles-ONT Ontario
9h 49m1 stop Denver Intl
Frontier Logo
6:15 am - 10:46 pmONT  Ontario-LAX Los Angeles
16h 31m2 stops Denver Intl Seattle/Tacoma Intl
$165Frontier
Wed, Oct 14 - Tue, Oct 20
Frontier Logo
8:44 am - 7:40 pmLAX  Los Angeles-ONT Ontario
10h 56m1 stop San Francisco
Frontier Logo
10:04 am - 4:20 pmONT  Ontario-LAX Los Angeles
6h 16m1 stop Las Vegas Harry Reid Intl
$166Frontier
Thu, Oct 15 - 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
Sep 10
LAX8:44 amLos Angeles
10h 52m
1 stop
ONT7:36 pmOntario
Sep 16
ONT11:45 amOntario
12h 25m
1 stop
LAX12:10 amLos Angeles
$111
Frontier
Oct 14
LAX2:01 pmLos Angeles
9h 49m
1 stop
ONT11:50 pmOntario
Oct 20
ONT6:15 amOntario
8h 25m
1 stop
LAX2:40 pmLos Angeles
$118
Frontier
Sep 1
LAX7:13 pmLos Angeles
19h 14m
1 stop
ONT2:27 pmOntario
Sep 30
ONT2:30 pmOntario
17h 17m
1 stop
LAX7:47 amLos Angeles
$146

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 August 16, 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 Los Angeles - ONT Ontario

LAXONT

Los Angeles

Thu 9/10

8:44 am-7:36 pm

1 stop10h 52m

Ontario

Wed 9/16

11:45 am-12:10 am

1 stop12h 25m

$111

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Wed 10/14

2:01 pm-11:50 pm

1 stop9h 49m

Ontario

Tue 10/20

6:15 am-2:40 pm

1 stop8h 25m

$118

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Tue 9/1

7:13 pm-2:27 pm

1 stop19h 14m

Ontario

Wed 9/30

2:30 pm-7:47 am

1 stop17h 17m

$146

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Sat 9/12

8:11 am-11:47 pm

2 stops15h 36m

Ontario

Sat 9/19

11:45 am-12:10 am

1 stop12h 25m

$147

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Thu 9/10

8:44 am-7:36 pm

1 stop10h 52m

Ontario

Mon 9/14

12:07 pm-10:37 am

1 stop22h 30m

$150

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Fri 9/11

6:05 am-10:30 am

1 stop28h 25m

Ontario

Fri 9/18

8:00 am-3:01 pm

1 stop7h 01m

$151

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Thu 9/10

8:50 am-7:36 pm

2 stops10h 46m

Ontario

Wed 9/16

11:45 am-12:10 am

1 stop12h 25m

$155

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Thu 9/10

7:44 pm-7:36 pm

1 stop23h 52m

Ontario

Thu 9/17

2:30 pm-6:44 pm

1 stop4h 14m

$160

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Wed 10/14

2:01 pm-11:50 pm

1 stop9h 49m

Ontario

Tue 10/20

6:15 am-10:46 pm

2 stops16h 31m

$165
Quickest round-trip

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Thu 10/15

8:44 am-7:40 pm

1 stop10h 56m

Ontario

Wed 10/21

10:04 am-4:20 pm

1 stop6h 16m

$166

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 to Ontario?

Frontier is the most popular carrier operating from 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 to Ontario by plane?

    The distance between 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

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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Tue 9/15
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