How often are flights from Los Angeles to Ontario delayed?

Historically, on average around 28% of flights between Los Angeles and Ontario have experienced a delay on any given week. The average delay length over the past 12 months has been 86 minutes.

What is the most punctual flight time for Los Angeles to Ontario flights?

Generally, flights departing in the evening tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

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.

$67 Cheap Flights from Los Angeles to Ontario in 2026

Find the cheapest flights from Los Angeles to Los Angeles

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One-way

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Enter your travel dates to find the best prices.

7:13 pm - 2:27 pmLAX Los Angeles-ONT Ontario

19h 14m1 stop San Francisco

3:13 pm - 10:37 amONT Ontario-LAX Los Angeles

19h 24m1 stop San Francisco

$127Frontier

Tue, Sep 1 - Tue, Sep 8

8:44 am - 7:36 pmLAX Los Angeles-ONT Ontario

10h 52m1 stop San Francisco

2:30 pm - 7:47 amONT Ontario-LAX Los Angeles

17h 17m1 stop Las Vegas Harry Reid Intl

$160Frontier

Fri, Sep 11 - Sun, Sep 13

6:55 am - 8:03 amLAX Los Angeles-ONT Ontario

25h 08m1 stop Las Vegas Harry Reid Intl

7:56 pm - 8:30 amONT Ontario-LAX Los Angeles

12h 34m1 stop Denver Intl

$162Frontier

Sat, Aug 29 - Sat, Sep 5

6:15 am - 11:55 pmLAX Los Angeles-ONT Ontario

17h 40m1 stop Denver Intl

8:54 pm - 6:09 pmONT Ontario-LAX Los Angeles

21h 15m1 stop Las Vegas Harry Reid Intl

$164Frontier

Tue, Oct 20 - Fri, Oct 23

6:05 am - 11:47 pmLAX Los Angeles-ONT Ontario

17h 42m1 stop Denver Intl

11:16 am - 3:52 pmONT Ontario-LAX Los Angeles

4h 36m1 stop Las Vegas Harry Reid Intl

$169Frontier

Tue, Oct 6 - Thu, Oct 8

6:55 am - 4:22 pmLAX Los Angeles-ONT Ontario

9h 27m1 stop Las Vegas Harry Reid Intl

12:07 pm - 1:43 pmONT Ontario-LAX Los Angeles

25h 36m1 stop San Francisco

$173Frontier

Thu, Sep 3 - Thu, Sep 10

7:07 pm - 2:27 pmLAX Los Angeles-ONT Ontario

19h 20m1 stop San Francisco

10:17 pm - 9:29 amONT Ontario-LAX Los Angeles

11h 12m1 stop Las Vegas Harry Reid Intl

$175Frontier

Mon, Aug 31 - Mon, Sep 7

7:13 pm - 2:27 pmLAX Los Angeles-ONT Ontario

19h 14m1 stop San Francisco

7:56 pm - 10:37 amONT Ontario-LAX Los Angeles

38h 41m2 stops Denver Intl San Francisco

$176Frontier

Tue, Sep 1 - Tue, Sep 8

6:55 am - 3:49 pmLAX Los Angeles-ONT Ontario

8h 54m1 stop Las Vegas Harry Reid Intl

8:48 am - 9:39 pmONT Ontario-LAX Los Angeles

12h 51m1 stop San Francisco

$180Frontier

Sat, Sep 5 - Sun, Sep 6

6:55 am - 3:49 pmLAX Los Angeles-ONT Ontario

8h 54m1 stop Las Vegas Harry Reid Intl

8:48 am - 9:39 pmONT Ontario-LAX Los Angeles

12h 51m1 stop San Francisco

$181Frontier

Sat, Sep 5 - Sun, Sep 6

Cheap last minute flights

Enter your travel dates to find the best prices.

6:30 am - 3:14 pmLAX Los Angeles-ONT Ontario

8h 44m1 stop Las Vegas Harry Reid Intl

4:49 pm - 1:34 pmONT Ontario-LAX Los Angeles

20h 45m1 stop Seattle/Tacoma Intl

$422Frontier

Sat, Aug 8 - Sun, Aug 16

6:30 am - 3:14 pmLAX Los Angeles-ONT Ontario

8h 44m1 stop Las Vegas Harry Reid Intl

4:09 pm - 1:06 pmONT Ontario-LAX Los Angeles

20h 57m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

$480Frontier

Sat, Aug 8 - Sun, Aug 16

9:09 pm - 8:03 amLAX Los Angeles-ONT Ontario

10h 54m1 stop Las Vegas Harry Reid Intl

1:38 pm - 8:03 pmONT Ontario-LAX Los Angeles

6h 25m1 stop Las Vegas Harry Reid Intl

$522Frontier

Fri, Aug 7 - Wed, Aug 12

9:09 pm - 8:03 amLAX Los Angeles-ONT Ontario

10h 54m1 stop Las Vegas Harry Reid Intl

5:08 pm - 1:06 pmONT Ontario-LAX Los Angeles

19h 58m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

$525Frontier

Fri, Aug 7 - Wed, Aug 12

9:09 pm - 8:03 amLAX Los Angeles-ONT Ontario

10h 54m1 stop Las Vegas Harry Reid Intl

8:58 am - 9:54 pmONT Ontario-LAX Los Angeles

12h 56m1 stop San Francisco

$527Frontier

Mon, Aug 10 - Thu, Aug 13

9:09 pm - 11:02 amLAX Los Angeles-ONT Ontario

13h 53m2 stops Las Vegas Harry Reid Intl San Francisco

8:58 am - 9:54 pmONT Ontario-LAX Los Angeles

12h 56m1 stop San Francisco

$556Frontier

Thu, Aug 6 - Tue, Aug 11

12:07 pm - 8:03 amLAX Los Angeles-ONT Ontario

19h 56m1 stop Las Vegas Harry Reid Intl

8:58 am - 9:54 pmONT Ontario-LAX Los Angeles

12h 56m1 stop San Francisco

$573Frontier

Thu, Aug 6 - Tue, Aug 11

6:30 am - 3:54 pmLAX Los Angeles-ONT Ontario

9h 24m1 stop Las Vegas Harry Reid Intl

5:08 pm - 9:54 pmONT Ontario-LAX Los Angeles

28h 46m2 stops Las Vegas Harry Reid Intl San Francisco

$588Frontier

Mon, Aug 10 - Wed, Aug 12

6:30 am - 3:54 pmLAX Los Angeles-ONT Ontario

9h 24m1 stop Las Vegas Harry Reid Intl

4:09 pm - 1:06 pmONT Ontario-LAX Los Angeles

20h 57m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

$620Frontier

Mon, Aug 10 - Tue, Aug 11

6:30 am - 8:03 amLAX Los Angeles-ONT Ontario

25h 33m1 stop Las Vegas Harry Reid Intl

10:49 am - 9:54 pmONT Ontario-LAX Los Angeles

11h 05m2 stops Denver Intl San Francisco

$627Frontier

Thu, Aug 6 - Sat, Aug 8

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Frontier flights from Los Angeles to Ontario

Our best Frontier deals on Los Angeles to Ontario flight tickets

Frontier

Sep 1

LAX7:13 pmLos Angeles

19h 14m

1 stop

ONT2:27 pmOntario

Sep 8

ONT3:13 pmOntario

19h 24m

1 stop

LAX10:37 amLos Angeles

$127

Frontier

Sep 11

LAX8:44 amLos Angeles

10h 52m

1 stop

ONT7:36 pmOntario

Sep 13

ONT2:30 pmOntario

17h 17m

1 stop

LAX7:47 amLos Angeles

$160

Frontier

Aug 29

LAX6:55 amLos Angeles

25h 08m

1 stop

ONT8:03 amOntario

Sep 5

ONT7:56 pmOntario

12h 34m

1 stop

LAX8:30 amLos Angeles

$162

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Tue 9/1

7:13 pm-2:27 pm

1 stop19h 14m

Ontario

Tue 9/8

3:13 pm-10:37 am

1 stop19h 24m

$127

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Fri 9/11

8:44 am-7:36 pm

1 stop10h 52m

Ontario

Sun 9/13

2:30 pm-7:47 am

1 stop17h 17m

$160

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Sat 8/29

6:55 am-8:03 am

1 stop25h 08m

Ontario

Sat 9/5

7:56 pm-8:30 am

1 stop12h 34m

$162

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Tue 10/20

6:15 am-11:55 pm

1 stop17h 40m

Ontario

Fri 10/23

8:54 pm-6:09 pm

1 stop21h 15m

$164

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Tue 10/6

6:05 am-11:47 pm

1 stop17h 42m

Ontario

Thu 10/8

11:16 am-3:52 pm

1 stop4h 36m

$169

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Thu 9/3

6:55 am-4:22 pm

1 stop9h 27m

Ontario

Thu 9/10

12:07 pm-1:43 pm

1 stop25h 36m

$173

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Mon 8/31

7:07 pm-2:27 pm

1 stop19h 20m

Ontario

Mon 9/7

10:17 pm-9:29 am

1 stop11h 12m

$175

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Tue 9/1

7:13 pm-2:27 pm

1 stop19h 14m

Ontario

Tue 9/8

7:56 pm-10:37 am

2 stops38h 41m

$176

Quickest round-trip

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Sat 9/5

6:55 am-3:49 pm

1 stop8h 54m

Ontario

Sun 9/6

8:48 am-9:39 pm

1 stop12h 51m

$180

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Sat 9/5

6:55 am-3:49 pm

1 stop8h 54m

Ontario

Sun 9/6

8:48 am-9:39 pm

1 stop12h 51m

$181

Flights are sorted by cheapest round-trip flights first.

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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

Airlines

Delays

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	5h 34m
Direct flights	None

The fastest flight from Los Angeles to Ontario takes 5h 34m

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. 5h 34m 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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Cheap flights from Los Angeles to Los Angeles from $67

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 9/1. 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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What day of the week experiences the fewest flight delays on this route?

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

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Frequently asked questions about flying from Los Angeles to Ontario

Why use momondo?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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List of cabin classes available on flights landing in Los Angeles. Availability may vary depending on flight origin and airline.

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