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$115+ Cheap flights from Ontario to California

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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LAX
ago 4 — ago 111
seg 8/4
seg 8/11
1 adult, Economy
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Cheap flight deals from Ontario to California

Keep the following information in mind while searching for Ontario to California flight deals. Data was last updated julho 30, 2025.

Round-trip from

$179
(Kiwi.com)

One-way from

$115
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$324

Good round-trip deal

$226 or less

Good one-way deal

$200 or less
From Ontario to California
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One-way flight from Ontario to California
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Highest demand for flights based on searches. 10% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Ontario to California.
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Price to beat on a one-way flight from Ontario to California.
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Find flight deals from Ontario to California

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

This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
qui 9/410:40 amYYZ - LAX
Nonstop5h 20mPorter Airlines
qua 9/102:00 pmLAX - YYZ
Nonstop4h 50mPorter Airlines
Deal found 7/30$179
This FlightHub deal was found by Cheapflights users on 7/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 12/68:00 amYYZ - LAX
2 stops11h 58mWestJet
dom 12/147:00 amLAX - YYZ
2 stops13h 39mWestJet
Deal found 7/27$180
This Booking.com deal was found by Cheapflights users on 7/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 9/128:30 pmYYZ - LAS
Nonstop4h 43mAir Canada
sex 9/1911:20 pmLAS - YYZ
Nonstop4h 20mAir Canada
Deal found 7/29$184
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
ter 9/23:00 pmYYZ - LAS
1 stop9h 29mWestJet
seg 9/812:35 pmLAS - YYZ
Nonstop4h 23mWestJet
Deal found 7/28$185
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
qui 9/410:40 amYYZ - LAX
Nonstop5h 20mMultiple Airlines
ter 9/911:10 pmLAX - YYZ
Nonstop4h 49mMultiple Airlines
Deal found 7/29$186
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
sáb 8/308:05 pmYYZ - LAS
Nonstop4h 50mPorter Airlines
qui 9/412:20 pmLAS - YYZ
Nonstop4h 25mPorter Airlines
Deal found 7/29$186
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
ter 9/29:30 amYYZ - LAS
Nonstop4h 45mMultiple Airlines
qui 9/1112:35 pmLAS - YYZ
Nonstop4h 23mMultiple Airlines
Deal found 7/28$187
This SmartFares deal was found by Cheapflights users on 7/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 8/318:05 pmYYZ - LAS
Nonstop4h 50mAir Transat
qui 9/412:20 pmLAS - YYZ
Nonstop4h 25mAir Transat
Deal found 7/29$188
This Air Canada deal was found by Cheapflights users on 7/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 9/56:35 pmYYZ - LAX
Nonstop5h 18mAir Canada
sáb 9/209:55 pmLAX - YYZ
Nonstop4h 51mAir Canada
Deal found 7/30$196
This flugladen.de deal was found by Cheapflights users on 7/29. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 9/128:25 pmYTZ - LAX
1 stop17h 40mAir Canada
sáb 9/2010:30 pmLAX - YTZ
1 stop8h 15mAir Canada
Deal found 7/29$198
This Air Canada deal was found by Cheapflights users on 7/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 9/73:25 pmYTZ - LAS
1 stop9h 47mAir Canada
qua 9/1011:25 amLAS - YTZ
1 stop17h 40mAir Canada
Deal found 7/29$207
This Air Canada deal was found by Cheapflights users on 7/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 8/208:10 amYUL - LAX
Nonstop5h 57mAir Canada
dom 8/3110:30 pmLAX - YUL
Nonstop5h 29mAir Canada
Deal found 7/29$218

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to California 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 julho 30, 2025.
Use the filters below to find and compare flights from Ontario to California that are best for you.

Fly from

Ontario

Fly to

California

Route

Depart

Return

Price

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

qui 9/4

10:40 am-1:00 pm

Nonstop5h 20m

Los Angeles

qua 9/10

2:00 pm-9:50 pm

Nonstop4h 50m

$179

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

sáb 8/30

11:00 am-8:23 pm

2 stops12h 23m

Los Angeles

sáb 9/13

7:00 am-12:31 am

2 stops14h 31m

$182

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

sex 9/12

8:30 pm-10:13 pm

Nonstop4h 43m

Las Vegas Harry Reid Intl

sex 9/19

11:20 pm-6:40 am

Nonstop4h 20m

$184

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

ter 9/2

3:00 pm-9:29 pm

1 stop9h 29m

Las Vegas Harry Reid Intl

seg 9/8

12:35 pm-7:58 pm

Nonstop4h 23m

$185

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

qui 9/4

10:40 am-1:00 pm

Nonstop5h 20m

Los Angeles

ter 9/9

11:10 pm-6:59 am

Nonstop4h 49m

$186

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

sáb 8/30

8:05 pm-9:55 pm

Nonstop4h 50m

Las Vegas Harry Reid Intl

qui 9/4

12:20 pm-7:45 pm

Nonstop4h 25m

$186

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

ter 9/2

9:30 am-11:15 am

Nonstop4h 45m

Las Vegas Harry Reid Intl

qui 9/11

12:35 pm-7:58 pm

Nonstop4h 23m

$187

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

dom 8/31

8:05 pm-9:55 pm

Nonstop4h 50m

Las Vegas Harry Reid Intl

qui 9/4

12:20 pm-7:45 pm

Nonstop4h 25m

$188

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

sex 9/5

6:35 pm-8:53 pm

Nonstop5h 18m

Los Angeles

sáb 9/20

9:55 pm-5:46 am

Nonstop4h 51m

$196

TorontoLos Angeles

YTZ - LAX

YTZLAX

Toronto Island

sex 9/12

8:25 pm-11:05 am

1 stop17h 40m

Los Angeles

sáb 9/20

10:30 pm-9:45 am

1 stop8h 15m

$198

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to California

Have a flexible travel schedule? Discover the best time to fly to California 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 California

What is the cheapest month to book a flight from Region of Ontario to California?

Currently, January is the cheapest month in which you can book a flight from Region of Ontario to California (average of $246). Flying from Region of Ontario to California in March is currently the most expensive (average of $326). 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.

What is the cheapest time of day to fly from ON to CA?

Find hourly flight availability from Ontario to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julho 30, 2025.

When flying from Region of Ontario to California, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Region of Ontario to California

Explore weekly flight availability from Ontario to California. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated julho 30, 2025.

The most flights from CAON to USCA are scheduled on a Wednesday (19 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (12 on average).

Reviews of airlines servicing California

Get insights into the airlines that provide service to California. 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 California. Reviews last updated julho 30, 2025.
Read through reviews of airlines operating flights from Ontario to California, such as Alaska Airlines, Porter Airlines, and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Porter Airlines
8.0
Very good
318 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Air Transat
7.7
Good
424 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

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

  • What are the cheapest airlines to fly from Region of Ontario to California one-way?

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $115. However, be on the lookout for offers from Porter Airlines and Air Canada, as they are both options that can get you from Region of Ontario to California for a low price.

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

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

  • How can I find direct flights from Ontario to California?

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

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

    Yes. Cheapflights offers flight deals from Ontario to California 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 Region of Ontario to California?

    Currently, January is the cheapest month in which you can book a flight from Region of Ontario to California (average of $246). Flying from Region of Ontario to California in March is currently the most expensive (average of $326). 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

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Alternative routes for Ontario to California

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Ontario to California

Discover the top 7 airlines that operate flights from Ontario to California. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julho 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$116Average$353FlexibilityNo cancel feeOn-time52%
WestJetCheapest$146Average$291FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$164Average$451FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$171Average$448FlexibilityNo cancel feeOn-time67%
Air TransatCheapest$197Average$353FlexibilityNo cancel feeOn-time50%
American AirlinesCheapest$199Average$468FlexibilityNo cancel feeOn-time71%
DeltaCheapest$267Average$408FlexibilityNo cancel feeOn-timeN/A

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