How often are flights from Los Angeles to Ontario delayed?

Historically, on average around 23% 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 64 minutes.

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.

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.

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.

$63 Cheap Flights from Los Angeles to Ontario in 2026

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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.

12:14 pm - 7:51 pm

LAX

ONT

7h 37m

1 stop

1:33 pm - 7:00 pm

ONT

LAX

5h 27m

1 stop

$151Frontier

Wed, Jun 24 - Wed, Jul 1

7:55 pm - 3:08 pm

LAX

ONT

19h 13m

1 stop

1:33 pm - 7:00 pm

ONT

LAX

5h 27m

1 stop

$153Frontier

Tue, Jun 16 - Tue, Jun 23

7:55 pm - 3:08 pm

LAX

ONT

19h 13m

1 stop

1:33 pm - 7:00 pm

ONT

LAX

5h 27m

1 stop

$155Frontier

Tue, Jun 16 - Wed, Jun 24

7:55 pm - 3:08 pm

LAX

ONT

19h 13m

1 stop

1:33 pm - 7:00 pm

ONT

LAX

5h 27m

1 stop

$168Frontier

Tue, Jun 16 - Tue, Jun 23

7:55 pm - 3:08 pm

LAX

ONT

19h 13m

1 stop

1:33 pm - 9:25 am

ONT

LAX

19h 52m

1 stop

$171Frontier

Tue, Jun 23 - Tue, Jun 30

6:11 pm - 11:02 am

LAX

ONT

16h 51m

1 stop

6:00 am - 12:11 am

ONT

LAX

18h 11m

1 stop

$187Frontier

Fri, Aug 14 - Wed, Aug 19

12:14 pm - 7:51 pm

LAX

ONT

7h 37m

1 stop

3:34 pm - 1:05 pm

ONT

LAX

21h 31m

2 stops

$190Frontier

Wed, Jun 24 - Wed, Jul 1

12:14 pm - 7:51 pm

LAX

ONT

7h 37m

1 stop

1:33 pm - 7:00 pm

ONT

LAX

5h 27m

1 stop

$198Frontier

Wed, Jun 17 - Tue, Jun 23

6:02 pm - 11:13 am

LAX

ONT

17h 11m

1 stop

1:33 pm - 7:00 pm

ONT

LAX

5h 27m

1 stop

$201Frontier

Wed, Jun 24 - Wed, Jul 1

7:55 pm - 3:08 pm

LAX

ONT

19h 13m

1 stop

3:34 pm - 1:05 pm

ONT

LAX

21h 31m

2 stops

$207Frontier

Tue, Jun 16 - Tue, Jun 23

Frontier flights from Los Angeles to Ontario

Our best Frontier deals on Los Angeles to Ontario flight tickets

Frontier

Jun 24

LAX12:14 pmLos Angeles

7h 37m

1 stop

ONT7:51 pmOntario

Jul 1

ONT1:33 pmOntario

5h 27m

1 stop

LAX7:00 pmLos Angeles

$151

Frontier

Jun 16

LAX7:55 pmLos Angeles

19h 13m

1 stop

ONT3:08 pmOntario

Jun 23

ONT1:33 pmOntario

5h 27m

1 stop

LAX7:00 pmLos Angeles

$153

Frontier

Jun 16

LAX7:55 pmLos Angeles

19h 13m

1 stop

ONT3:08 pmOntario

Jun 24

ONT1:33 pmOntario

5h 27m

1 stop

LAX7:00 pmLos Angeles

$155

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Wed 6/24

12:14 pm-7:51 pm

1 stop7h 37m

Ontario

Wed 7/1

1:33 pm-7:00 pm

1 stop5h 27m

$151

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Tue 6/16

7:55 pm-3:08 pm

1 stop19h 13m

Ontario

Tue 6/23

1:33 pm-7:00 pm

1 stop5h 27m

$153

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Tue 6/16

7:55 pm-3:08 pm

1 stop19h 13m

Ontario

Wed 6/24

1:33 pm-7:00 pm

1 stop5h 27m

$155

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Tue 6/16

7:55 pm-3:08 pm

1 stop19h 13m

Ontario

Tue 6/23

1:33 pm-7:00 pm

1 stop5h 27m

$168

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Tue 6/23

7:55 pm-3:08 pm

1 stop19h 13m

Ontario

Tue 6/30

1:33 pm-9:25 am

1 stop19h 52m

$171

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Fri 8/14

6:11 pm-11:02 am

1 stop16h 51m

Ontario

Wed 8/19

6:00 am-12:11 am

1 stop18h 11m

$187

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Wed 6/24

12:14 pm-7:51 pm

1 stop7h 37m

Ontario

Wed 7/1

3:34 pm-1:05 pm

2 stops21h 31m

$190

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Wed 6/17

12:14 pm-7:51 pm

1 stop7h 37m

Ontario

Tue 6/23

1:33 pm-7:00 pm

1 stop5h 27m

$198

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Wed 6/24

6:02 pm-11:13 am

1 stop17h 11m

Ontario

Wed 7/1

1:33 pm-7:00 pm

1 stop5h 27m

$201

Los AngelesOntario

LAX - ONT

LAXONT

Los Angeles

Tue 6/16

7:55 pm-3:08 pm

1 stop19h 13m

Ontario

Tue 6/23

3:34 pm-1:05 pm

2 stops21h 31m

$207

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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.

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 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.

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Mon 6/29

Mon 7/6

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Nearby airports

Cabin classes

Other United States destinations

Other flights from Los Angeles

Complete your trip

Feeling lucky

Cheap flights from Los Angeles to Los Angeles from $63

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 6/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Los Angeles to Los Angeles

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Frontier flights from Los Angeles to Ontario

Our best Frontier deals on Los Angeles to Ontario flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Los Angeles to Ontario that are best for you.

See travel insights to Los Angeles from

How to get the cheapest flight ticket from Los Angeles to Ontario

What is the cheapest airline that flies from Los Angeles to Ontario?

How often are flights from Los Angeles to Ontario delayed?

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

Fastest flight time

Direct flights

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.

Find better results for your trip to the United States

Airports servicing California

Cabin classes currently available on flights to Los Angeles

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

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Los Angeles

According to popular flight searches on momondo this year

Complete your trip to Los Angeles

Explore popular destinations other users love

According to popular flight searches on momondo this year