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$77+ Cheap flights from Ontario to Los Angeles (ONT - LAX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LAX
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from Ontario to Los Angeles

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Los Angeles (LAX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$163
(Kiwi.com)

One-way from

$77
(Kiwi.com)
Provider with most accurate pricing for Ontario-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Ontario-Los Angeles flights.
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From Ontario to Los Angeles
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One-way flight from Ontario to Los Angeles
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Find flight deals from Ontario to Los Angeles

Cheapest flights from Ontario to Los Angeles
Explore the most affordable flight options available from Ontario to Los Angeles. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/410:12 pmONT - LAX
1 stop23h 17mFrontier
Mon 12/86:21 pmLAX - ONT
1 stop5h 10mFrontier
Deal found 10/28$127
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/266:30 amONT - LAX
1 stop6h 23mFrontier
Thu 12/43:30 pmLAX - ONT
1 stop5h 47mFrontier
Deal found 10/28$161
This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/266:30 amONT - LAX
1 stop13h 17mFrontier
Wed 12/33:30 pmLAX - ONT
1 stop5h 47mFrontier
Deal found 10/29$163
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:15 amONT - LAX
1 stop13h 50mFrontier
Sun 12/2110:03 pmLAX - ONT
1 stop19h 12mFrontier
Deal found 10/30$170
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:30 amONT - LAX
1 stop6h 23mFrontier
Wed 12/33:30 pmLAX - ONT
1 stop5h 47mFrontier
Deal found 10/28$174
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/255:06 pmONT - LAX
1 stop19h 47mMultiple Airlines
Tue 12/29:54 pmLAX - ONT
1 stop23h 23mMultiple Airlines
Deal found 10/28$179
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amONT - LAX
1 stop14h 31mFrontier
Fri 1/23:30 pmLAX - ONT
1 stop25h 01mFrontier
Deal found 10/28$184
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/265:06 pmONT - LAX
1 stop19h 47mFrontier
Fri 11/283:18 pmLAX - ONT
1 stop5h 48mFrontier
Deal found 10/28$185
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/118:45 amONT - LAX
1 stop15h 40mFrontier
Fri 11/141:52 pmLAX - ONT
1 stop9h 58mFrontier
Deal found 10/28$191
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/266:30 amONT - LAX
1 stop6h 23mFrontier
Sun 11/303:18 pmLAX - ONT
1 stop23h 08mFrontier
Deal found 10/28$195

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Los Angeles 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, Cheapflights users made 2,558,603 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Ontario to Los Angeles that are best for you.

Fly from

Ontario

Fly to

Los Angeles

Route

Depart

Return

Price

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Fri 11/28

5:06 pm-6:54 am

1 stop13h 48m

Los Angeles

Fri 12/5

1:11 pm-11:48 pm

1 stop10h 37m

$163

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Fri 11/28

6:25 am-7:47 pm

1 stop13h 22m

Los Angeles

Fri 12/5

6:21 pm-11:48 pm

1 stop5h 27m

$163

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Wed 11/26

6:30 am-7:47 pm

1 stop13h 17m

Los Angeles

Wed 12/3

3:30 pm-9:17 pm

1 stop5h 47m

$163

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Tue 12/16

6:15 am-8:05 pm

1 stop13h 50m

Los Angeles

Sun 12/21

10:03 pm-5:15 pm

1 stop19h 12m

$170

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Thu 11/27

9:59 pm-10:20 pm

1 stop24h 21m

Los Angeles

Thu 12/4

3:30 pm-9:17 pm

1 stop5h 47m

$173

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Tue 12/30

6:00 am-8:31 pm

1 stop14h 31m

Los Angeles

Fri 1/2

3:30 pm-4:31 pm

1 stop25h 01m

$184

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Thu 1/1

6:45 am-10:13 am

2 stops27h 28m

$84

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Fri 11/7

6:00 am-7:53 pm

1 stop13h 53m

$151

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Sat 11/22

6:30 am-6:07 pm

2 stops11h 37m

$160

OntarioLos Angeles

ONT - LAX

ONTLAX

Ontario

Thu 1/1

5:24 pm-4:14 pm

3 stops22h 50m

$212

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 13 results
1
2

Compare providers for flights from Ontario to Los Angeles

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Los Angeles in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Los Angeles flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Los Angeles flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Los Angeles flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Los Angeles flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Los Angeles flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Los Angeles

Have a flexible travel schedule? Discover the best time to fly to Los Angeles from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Los Angeles

What is the cheapest month to book a flight from Ontario to Los Angeles?

Currently, March is the cheapest month in which you can book a flight from Ontario to Los Angeles (average of $102). Flying from Ontario to Los Angeles in August is currently the most expensive (average of $444). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Los Angeles. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Los Angeles?

    Departing from Ontario to Los Angeles will take you 13h 22m. The distance between Ontario and Los Angeles is about 47 mi.

  • Can I find deals for flights from Ontario to Los Angeles that include hotel bookings?

    Yes. In addition to deals on Ontario to Los Angeles flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Los Angeles?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Los Angeles.

  • Can I find deals for business class flights from Ontario to Los Angeles?

    Yes. Cheapflights offers flight deals from Ontario to Los Angeles by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Los Angeles?

    Currently, March is the cheapest month in which you can book a flight from Ontario to Los Angeles (average of $102). Flying from Ontario to Los Angeles in August is currently the most expensive (average of $444). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Los Angeles?

Book flights to Los Angeles if you plan to visit one of these locations
Downey
Stanton
Universal City
Buena Park
Oceanside
El Segundo
Inglewood
Hesperia
Torrance
Avalon
Glendale
Moreno Valley
Lancaster
Manhattan Beach
Garden Grove
Montebello
West Hollywood
Compton
Menifee
San Gabriel

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