$43+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LAX
Dec 5 — Dec 121
Round-trip
1 adult, Economy
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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
Cheapest
Best
Last-minute
One-way
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 November 5, 2026.
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 November 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 12/22:00 pm -
1 stop6h 25m
Wed 12/96:40 pm -
1 stop4h 43m
Deal found 11/4![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Mon 11/302:01 pm -
1 stop18h 14m
Mon 12/76:40 pm -
1 stop4h 43m
Deal found 11/2![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 12/38:00 am -
1 stop7h 32m
Mon 12/76:40 pm -
1 stop4h 43m
Deal found 11/1![Frontier logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/38:00 am -
1 stop7h 32m
Thu 12/37:41 pm -
1 stop17h 19m
Deal found 11/2![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 11/2410:40 pm -
1 stop16h 57m
Mon 11/307:41 pm -
1 stop16h 58m
Deal found 11/1![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 10/31. 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.
Fri 11/2010:55 am -
1 stop4h 42m
Sun 11/2212:15 pm -
1 stop19h 05m
Deal found 10/31![Frontier logo]()
$206
Best flights from Ontario to Los AngelesDiscover carefully curated flight deals from Ontario to Los Angeles that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
Discover carefully curated flight deals from Ontario to Los Angeles that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 12/22:00 pm -
1 stop6h 25m
Wed 12/96:40 pm -
1 stop4h 43m
Deal found 11/4![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 12/38:00 am -
1 stop7h 32m
Mon 12/76:40 pm -
1 stop4h 43m
Deal found 11/1![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/38:00 am -
1 stop7h 32m
Thu 12/37:41 pm -
1 stop17h 19m
Deal found 11/2![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 11/2410:40 pm -
1 stop16h 57m
Mon 11/307:41 pm -
1 stop16h 58m
Deal found 11/1![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 10/31. 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.
Fri 11/2010:55 am -
1 stop4h 42m
Sun 11/2212:15 pm -
1 stop19h 05m
Deal found 10/31![Frontier logo]()
$206
Last-minute flights from Ontario to Los AngelesDiscover last-minute flight deals from Ontario to Los Angeles. Data last updated November 5, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Los Angeles. Data last updated November 5, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Mon 11/302:01 pm -
1 stop18h 14m
Mon 12/76:40 pm -
1 stop4h 43m
Deal found 11/2![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 12/22:00 pm -
1 stop6h 25m
Wed 12/96:40 pm -
1 stop4h 43m
Deal found 11/4![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 12/38:00 am -
1 stop7h 32m
Mon 12/76:40 pm -
1 stop4h 43m
Deal found 11/1![Frontier logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 12/38:00 am -
1 stop7h 32m
Thu 12/106:40 pm -
1 stop4h 43m
Deal found 11/5![Frontier logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/38:00 am -
1 stop7h 32m
Thu 12/37:41 pm -
1 stop17h 19m
Deal found 11/2![Frontier logo]()
$106
One-way flights from Ontario to Los AngelesSearch for one-way flight options from Ontario to Los Angeles. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
Search for one-way flight options from Ontario to Los Angeles. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/811:00 am -
1 stop4h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Frontier logo]()
$43
This Kiwi.com deal was found by Cheapflights users on 10/31. 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.
Sun 11/2210:40 pm -
1 stop12h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Frontier logo]()
$58
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 11/1710:35 am -
1 stop22h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 11/1810:35 am -
2 stops24h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 11/185:07 pm -
1 stop14h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Sun 11/152:23 pm -
1 stop28h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Mon 11/92:23 pm -
1 stop4h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Frontier logo]()
$256
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 11/1010:35 am -
1 stop5h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Frontier logo]()
$272
Find 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 November 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $83 (Kiwi.com) |
One-way from | $43 (Kiwi.com) |
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 7,457,451 searches. Data last updated November 5, 2026.
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
Cheapest round-trip
OntarioLos Angeles
ONT Ontario - LAX Los Angeles
ONTLAX
Ontario
Tue 12/8
11:00 am-3:25 pm
1 stop4h 25m
Los Angeles
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$43
OntarioLos Angeles
ONT Ontario - LAX Los Angeles
ONTLAX
Ontario
Tue 11/17
10:35 am-9:19 am
1 stop22h 44m
Los Angeles
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$76
OntarioLos Angeles
ONT Ontario - LAX Los Angeles
ONTLAX
Ontario
Wed 12/2
2:00 pm-8:25 pm
1 stop6h 25m
Los Angeles
Wed 12/9
6:40 pm-11:23 pm
1 stop4h 43m
$83
OntarioLos Angeles
ONT Ontario - LAX Los Angeles
ONTLAX
Ontario
Sun 11/22
10:40 pm-5:09 pm
2 stops18h 29m
Los Angeles
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$94
OntarioLos Angeles
ONT Ontario - LAX Los Angeles
ONTLAX
Ontario
Thu 12/3
8:00 am-3:32 pm
1 stop7h 32m
Los Angeles
Mon 12/7
6:40 pm-11:23 pm
1 stop4h 43m
$95
OntarioLos Angeles
ONT Ontario - LAX Los Angeles
ONTLAX
Ontario
Thu 12/3
8:00 am-3:32 pm
1 stop7h 32m
Los Angeles
Thu 12/3
7:41 pm-1:00 pm
1 stop17h 19m
$106
OntarioLos Angeles
ONT Ontario - LAX Los Angeles
ONTLAX
Ontario
Tue 11/24
10:40 pm-3:37 pm
1 stop16h 57m
Los Angeles
Mon 11/30
7:41 pm-12:39 pm
1 stop16h 58m
$179
OntarioLos Angeles
ONT Ontario - LAX Los Angeles
ONTLAX
Ontario
Wed 11/18
10:35 am-11:20 am
2 stops24h 45m
Los Angeles
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$185
OntarioLos Angeles
ONT Ontario - LAX Los Angeles
ONTLAX
Ontario
Wed 11/18
5:07 pm-7:48 am
1 stop14h 41m
Los Angeles
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$202
OntarioLos Angeles
ONT Ontario - LAX Los Angeles
ONTLAX
Ontario
Fri 11/20
10:55 am-3:37 pm
1 stop4h 42m
Los Angeles
Sun 11/22
12:15 pm-7:20 am
1 stop19h 05m
$206
Showing 1-10 of 15 resultsSorted by cheapest first
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 November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Los Angeles flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Los Angeles flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.
ONT-LAX
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
How often are flights from Ontario to Los Angeles delayed?
About 33% of weekly flights between Ontario and Los Angeles have experienced delays in the past year, with the average delay time being 79 minutes.
What is the most punctual flight time for Ontario to Los Angeles flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Ontario to Los Angeles flights?
Over the last year, American Airlines have had the lowest number of delays on this route, with just 36% of flights being delayed.
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.
Traveling to a place near Los Angeles?
Book flights to Los Angeles if you plan to visit one of these locationsCarson
Inglewood
San Dimas
Stanton
Universal City
Corona
Redondo Beach
Avalon
Buena Park
Oxnard
West Hollywood
Torrance
Lake Arrowhead
Oceanside
Pomona
Garden Grove
Manhattan Beach
Rosemead
Santa Clarita
Fountain Valley
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