How often are flights from Los Angeles to Ontario delayed?

Historically, on average around 25% 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 78 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.

$70 Cheap Flights from Los Angeles to Ontario in 2026

Find the cheapest flights from Los Angeles to Los Angeles

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:07 pm - 11:02 am

LAX

ONT

15h 55m

1 stop

8:58 am - 9:54 pm

ONT

LAX

12h 56m

1 stop

$135Frontier

Wed, Aug 5 - Wed, Aug 12

7:52 pm - 11:02 am

LAX

ONT

15h 10m

1 stop

8:58 am - 9:54 pm

ONT

LAX

12h 56m

1 stop

$147Frontier

Fri, Aug 7 - Mon, Aug 10

6:30 am - 3:54 pm

LAX

ONT

9h 24m

1 stop

8:58 am - 9:54 pm

ONT

LAX

12h 56m

1 stop

$156Frontier

Thu, Aug 13 - Mon, Aug 17

7:07 pm - 2:03 pm

LAX

ONT

18h 56m

1 stop

3:13 pm - 9:54 pm

ONT

LAX

6h 41m

1 stop

$177Frontier

Tue, Aug 18 - Tue, Aug 25

6:30 am - 3:54 pm

LAX

ONT

9h 24m

1 stop

4:09 pm - 8:14 pm

ONT

LAX

4h 05m

1 stop

$178Frontier

Thu, Aug 6 - Thu, Aug 13

7:07 pm - 11:02 am

LAX

ONT

15h 55m

1 stop

5:08 pm - 8:30 am

ONT

LAX

15h 22m

2 stops

$195Frontier

Wed, Aug 5 - Wed, Aug 12

7:52 pm - 11:02 am

LAX

ONT

15h 10m

1 stop

4:09 pm - 8:55 am

ONT

LAX

16h 46m

2 stops

$198Frontier

Fri, Aug 7 - Mon, Aug 10

6:30 am - 3:14 pm

LAX

ONT

8h 44m

1 stop

1:38 pm - 8:03 pm

ONT

LAX

6h 25m

1 stop

$199Frontier

Tue, Aug 4 - Tue, Aug 11

7:07 pm - 2:03 pm

LAX

ONT

18h 56m

1 stop

2:26 pm - 9:01 pm

ONT

LAX

6h 35m

1 stop

$200Frontier

Tue, Aug 18 - Thu, Sep 10

7:07 pm - 8:03 am

LAX

ONT

36h 56m

2 stops

1:38 pm - 8:03 pm

ONT

LAX

6h 25m

1 stop

$214Frontier

Tue, Aug 4 - Tue, Aug 11

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Frontier flights from Los Angeles to Ontario

Our best Frontier deals on Los Angeles to Ontario flight tickets

Frontier

Aug 5

LAX7:07 pmLos Angeles

15h 55m

1 stop

ONT11:02 amOntario

Aug 12

ONT8:58 amOntario

12h 56m

1 stop

LAX9:54 pmLos Angeles

$135

Frontier

Aug 7

LAX7:52 pmLos Angeles

15h 10m

1 stop

ONT11:02 amOntario

Aug 10

ONT8:58 amOntario

12h 56m

1 stop

LAX9:54 pmLos Angeles

$147

Frontier

Aug 13

LAX6:30 amLos Angeles

9h 24m

1 stop

ONT3:54 pmOntario

Aug 17

ONT8:58 amOntario

12h 56m

1 stop

LAX9:54 pmLos Angeles

$156

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Wed 8/5

7:07 pm-11:02 am

1 stop15h 55m

Ontario

Wed 8/12

8:58 am-9:54 pm

1 stop12h 56m

$135

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Fri 8/7

7:52 pm-11:02 am

1 stop15h 10m

Ontario

Mon 8/10

8:58 am-9:54 pm

1 stop12h 56m

$147

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Thu 8/13

6:30 am-3:54 pm

1 stop9h 24m

Ontario

Mon 8/17

8:58 am-9:54 pm

1 stop12h 56m

$156

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Tue 8/18

7:07 pm-2:03 pm

1 stop18h 56m

Ontario

Tue 8/25

3:13 pm-9:54 pm

1 stop6h 41m

$177

Quickest round-trip

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Thu 8/6

6:30 am-3:54 pm

1 stop9h 24m

Ontario

Thu 8/13

4:09 pm-8:14 pm

1 stop4h 05m

$178

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Wed 8/5

7:07 pm-11:02 am

1 stop15h 55m

Ontario

Wed 8/12

5:08 pm-8:30 am

2 stops15h 22m

$195

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Fri 8/7

7:52 pm-11:02 am

1 stop15h 10m

Ontario

Mon 8/10

4:09 pm-8:55 am

2 stops16h 46m

$198

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Tue 8/4

6:30 am-3:14 pm

1 stop8h 44m

Ontario

Tue 8/11

1:38 pm-8:03 pm

1 stop6h 25m

$199

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Tue 8/18

7:07 pm-2:03 pm

1 stop18h 56m

Ontario

Thu 9/10

2:26 pm-9:01 pm

1 stop6h 35m

$200

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Tue 8/4

7:07 pm-8:03 am

2 stops36h 56m

Ontario

Tue 8/11

1:38 pm-8:03 pm

1 stop6h 25m

$214

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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	8h 44m
Direct flights	None

The fastest flight from Los Angeles to Ontario takes 8h 44m

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. 8h 44m 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.

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Cheap flights from Los Angeles to Los Angeles from $70

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 8/7. 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 is the most punctual flight time for Los Angeles to Ontario flights?

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

When to book flights from Los Angeles to Ontario

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

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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.

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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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