How often are flights from Los Angeles to Ontario delayed?

Historically, on average around 30% 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 85 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.

$73 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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Cheap round-trip flights

Enter your travel dates to find the best prices.

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

10h 52m1 stop San Francisco

11:45 am - 12:10 amONT Ontario-LAX Los Angeles

12h 25m1 stop Denver Intl

$143Frontier

Thu, Sep 24 - Thu, Oct 1

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

10h 52m1 stop San Francisco

8:24 pm - 4:23 pmONT Ontario-LAX Los Angeles

19h 59m1 stop Las Vegas Harry Reid Intl

$149Frontier

Mon, Sep 21 - Fri, Sep 25

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

10h 52m1 stop San Francisco

8:24 pm - 7:47 amONT Ontario-LAX Los Angeles

11h 23m1 stop Las Vegas Harry Reid Intl

$150Frontier

Thu, Sep 17 - Mon, Sep 21

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

10h 52m1 stop San Francisco

11:45 am - 12:10 amONT Ontario-LAX Los Angeles

12h 25m1 stop Denver Intl

$151Frontier

Fri, Oct 2 - Sat, Oct 3

6:05 am - 10:30 amLAX Los Angeles-ONT Ontario

28h 25m1 stop Denver Intl

6:15 am - 2:39 pmONT Ontario-LAX Los Angeles

8h 24m1 stop Denver Intl

$157Frontier

Tue, Sep 29 - Tue, Oct 6

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

10h 52m1 stop San Francisco

6:15 am - 10:37 amONT Ontario-LAX Los Angeles

28h 22m2 stops Denver Intl San Francisco

$166Frontier

Thu, Sep 17 - Mon, Sep 21

7:03 pm - 7:40 pmLAX Los Angeles-ONT Ontario

24h 37m1 stop San Francisco

8:35 pm - 7:49 amONT Ontario-LAX Los Angeles

11h 14m1 stop Las Vegas Harry Reid Intl

$169Frontier

Thu, Oct 8 - Mon, Oct 12

10:04 pm - 9:09 amLAX Los Angeles-ONT Ontario

11h 05m1 stop Las Vegas Harry Reid Intl

12:07 pm - 10:37 amONT Ontario-LAX Los Angeles

22h 30m1 stop San Francisco

$175Frontier

Fri, Sep 25 - Mon, Sep 28

8:41 pm - 6:16 pmLAX Los Angeles-ONT Ontario

21h 35m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

6:15 am - 2:39 pmONT Ontario-LAX Los Angeles

8h 24m1 stop Denver Intl

$186Frontier

Tue, Sep 29 - Tue, Oct 6

9:57 pm - 9:09 amLAX Los Angeles-ONT Ontario

11h 12m1 stop Las Vegas Harry Reid Intl

8:35 pm - 7:49 amONT Ontario-LAX Los Angeles

11h 14m1 stop Las Vegas Harry Reid Intl

$189Frontier

Fri, Oct 9 - Mon, Oct 12

Cheap last minute flights

Enter your travel dates to find the best prices.

7:13 pm - 10:29 amLAX Los Angeles-ONT Ontario

15h 16m1 stop San Francisco

5:17 pm - 1:34 pmONT Ontario-LAX Los Angeles

20h 17m1 stop Seattle/Tacoma Intl

$492Frontier

Sat, Sep 5 - Sun, Sep 6

7:13 pm - 10:29 amLAX Los Angeles-ONT Ontario

15h 16m1 stop San Francisco

5:17 pm - 1:34 pmONT Ontario-LAX Los Angeles

20h 17m1 stop Seattle/Tacoma Intl

$497Frontier

Sat, Sep 5 - Mon, Sep 7

7:13 pm - 10:29 amLAX Los Angeles-ONT Ontario

15h 16m1 stop San Francisco

3:40 pm - 8:30 amONT Ontario-LAX Los Angeles

16h 50m2 stops Las Vegas Harry Reid Intl Denver Intl

$508Frontier

Wed, Sep 2 - Thu, Sep 3

7:13 pm - 11:02 amLAX Los Angeles-ONT Ontario

15h 49m1 stop San Francisco

10:17 pm - 11:53 pmONT Ontario-LAX Los Angeles

25h 36m2 stops Las Vegas Harry Reid Intl Oakland

$509Frontier

Thu, Sep 3 - Mon, Sep 7

7:13 pm - 10:29 amLAX Los Angeles-ONT Ontario

15h 16m1 stop San Francisco

10:49 am - 11:53 pmONT Ontario-LAX Los Angeles

37h 04m2 stops Denver Intl San Francisco

$519Frontier

Sat, Sep 5 - Mon, Sep 7

6:30 am - 3:49 pmLAX Los Angeles-ONT Ontario

9h 19m2 stops Denver Intl Las Vegas Harry Reid Intl

8:48 am - 9:54 pmONT Ontario-LAX Los Angeles

13h 06m1 stop San Francisco

$530Frontier

Sat, Sep 5 - Sun, Sep 6

7:13 pm - 11:02 amLAX Los Angeles-ONT Ontario

15h 49m1 stop San Francisco

10:17 pm - 10:39 pmONT Ontario-LAX Los Angeles

24h 22m1 stop Las Vegas Harry Reid Intl

$549Frontier

Thu, Sep 3 - Mon, Sep 7

7:13 pm - 10:29 amLAX Los Angeles-ONT Ontario

15h 16m1 stop San Francisco

3:40 pm - 10:39 pmONT Ontario-LAX Los Angeles

6h 59m1 stop Las Vegas Harry Reid Intl

$554Frontier

Wed, Sep 2 - Thu, Sep 3

9:09 pm - 2:45 pmLAX Los Angeles-ONT Ontario

17h 36m2 stops Denver Intl Seattle/Tacoma Intl

8:48 am - 9:54 pmONT Ontario-LAX Los Angeles

13h 06m1 stop San Francisco

$565Frontier

Fri, Sep 4 - Mon, Sep 7

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

8h 54m1 stop Las Vegas Harry Reid Intl

7:56 pm - 9:23 pmONT Ontario-LAX Los Angeles

25h 27m2 stops Denver Intl Sacramento Intl

$569Frontier

Sat, Sep 5 - Sat, Sep 5

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Frontier flights from Los Angeles to Ontario

Our best Frontier deals on Los Angeles to Ontario flight tickets

Frontier

Sep 24

LAX8:44 amLos Angeles

10h 52m

1 stop

ONT7:36 pmOntario

Oct 1

ONT11:45 amOntario

12h 25m

1 stop

LAX12:10 amLos Angeles

$143

Frontier

Sep 21

LAX8:44 amLos Angeles

10h 52m

1 stop

ONT7:36 pmOntario

Sep 25

ONT8:24 pmOntario

19h 59m

1 stop

LAX4:23 pmLos Angeles

$149

Frontier

Sep 17

LAX8:44 amLos Angeles

10h 52m

1 stop

ONT7:36 pmOntario

Sep 21

ONT8:24 pmOntario

11h 23m

1 stop

LAX7:47 amLos Angeles

$150

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Thu 9/24

8:44 am-7:36 pm

1 stop10h 52m

Ontario

Thu 10/1

11:45 am-12:10 am

1 stop12h 25m

$143

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Mon 9/21

8:44 am-7:36 pm

1 stop10h 52m

Ontario

Fri 9/25

8:24 pm-4:23 pm

1 stop19h 59m

$149

Quickest round-trip

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Thu 9/17

8:44 am-7:36 pm

1 stop10h 52m

Ontario

Mon 9/21

8:24 pm-7:47 am

1 stop11h 23m

$150

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Fri 10/2

8:44 am-7:36 pm

1 stop10h 52m

Ontario

Sat 10/3

11:45 am-12:10 am

1 stop12h 25m

$151

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Tue 9/29

6:05 am-10:30 am

1 stop28h 25m

Ontario

Tue 10/6

6:15 am-2:39 pm

1 stop8h 24m

$157

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Thu 9/17

8:44 am-7:36 pm

1 stop10h 52m

Ontario

Mon 9/21

6:15 am-10:37 am

2 stops28h 22m

$166

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Thu 10/8

7:03 pm-7:40 pm

1 stop24h 37m

Ontario

Mon 10/12

8:35 pm-7:49 am

1 stop11h 14m

$169

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Fri 9/25

10:04 pm-9:09 am

1 stop11h 05m

Ontario

Mon 9/28

12:07 pm-10:37 am

1 stop22h 30m

$175

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Tue 9/29

8:41 pm-6:16 pm

2 stops21h 35m

Ontario

Tue 10/6

6:15 am-2:39 pm

1 stop8h 24m

$186

Los AngelesOntario

LAX Los Angeles - ONT Ontario

LAXONT

Los Angeles

Fri 10/9

9:57 pm-9:09 am

1 stop11h 12m

Ontario

Mon 10/12

8:35 pm-7:49 am

1 stop11h 14m

$189

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

Best Price Found	$73
Fastest flight time	8h 54m
Direct flights	None

The best one-way flight to Ontario from Los Angeles in the past 72 hours is $73. The best round-trip flight deal from Los Angeles to Ontario found on momondo in the last 72 hours is $143.

The fastest flight from Los Angeles to Ontario takes 8h 54m

There are no direct flights from Los Angeles to Ontario. There are no popular flight routes from Los Angeles to Ontario.

Search flight deals

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. 8h 54m 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 $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 10/3. 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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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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