$210+ Cheap flights from Ontario to Los Angeles (ONT - LAX)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Ontario to Los Angeles with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 June 12, 2025.
Round-trip from | $210 (KAYAK) |
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Find flight deals from Ontario to Los Angeles
Cheapest flights from Ontario to Los AngelesExplore 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 June 12, 2025.
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 June 12, 2025.
This KAYAK deal was found by Cheapflights users on 6/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kissandfly.com deal was found by Cheapflights users on 6/10. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
This lol.travel deal was found by Cheapflights users on 6/12. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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 June 12, 2025.
Use the filters below to find and compare flights from Ontario to Los Angeles that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
OntarioLos Angeles
ONT - LAX
ONTLAX
Ontario
Mon 7/14
6:00 am-12:08 pm
1 stop6h 08m
Los Angeles
Mon 7/21
3:48 pm-8:52 pm
1 stop5h 04m
OntarioLos Angeles
ONT - LAX
ONTLAX
Ontario
Fri 7/4
6:00 am-11:58 am
1 stop5h 58m
Los Angeles
Mon 7/7
6:41 pm-5:43 pm
2 stops23h 02m
OntarioLos Angeles
ONT - LAX
ONTLAX
Ontario
Sat 7/5
7:30 am-1:00 pm
1 stop5h 30m
Los Angeles
Wed 7/9
6:07 pm-11:59 pm
1 stop5h 52m
OntarioLos Angeles
ONT - LAX
ONTLAX
Ontario
Thu 8/7
6:10 pm-11:59 pm
1 stop5h 49m
Los Angeles
Mon 8/11
6:07 pm-11:59 pm
1 stop5h 52m
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.
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, January is the cheapest month in which you can book a flight from Ontario to Los Angeles (average of $246). Flying from Ontario to Los Angeles in March is currently the most expensive (average of $327). 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.
Rainfall in Los Angeles by month
Plan your trip to Los Angeles by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Los Angeles ranges from 0.0 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. July is typically the driest time to visit Los Angeles when rainfall is around 0.0 in.
Temperature in Los Angeles by month
Plan your trip to Los Angeles by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Los Angeles, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).
Reviews of airlines servicing Los Angeles
Get insights into the airlines that provide service to Los Angeles. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Los Angeles. Reviews last updated June 12, 2025.
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
James,Apr 2025
LAX - SFO
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
James,Apr 2025
LAX - SFO
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
James,Apr 2025
LAX - SFO
Overall
Entertainment
Comfort
Food
Boarding
Crew
Reviews
James,Apr 2025
LAX - SFO