HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
California

$92+ 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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LAX
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to California 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 California

Keep the following information in mind while searching for Ontario to California flight deals. Data was last updated April 17, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$131
(Air Canada)

One-way from

$92
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$278

Good round-trip deal

$171 or less

Good one-way deal

$133 or less
Provider with most accurate pricing for Toronto (YTO)-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Toronto (YTO)-Los Angeles flights.
Search Deals
From Ontario to California
Search Deals
One-way flight from Ontario to California
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from Ontario to California.
Search Deals
Price to beat on a one-way flight from Ontario to California.
Search Deals

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 April 17, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3112:00 pmYYZ - LAS
2 stops11h 21mWestJet
Tue 6/31:25 pmLAS - YYZ
2 stops14h 27mWestJet
Deal found 4/16$112
This FlightHub deal was found by Cheapflights users on 4/16. 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.
Sat 5/311:50 pmYYZ - LAS
Nonstop4h 53mMultiple Airlines
Tue 6/31:25 pmLAS - YYZ
2 stops13h 26mMultiple Airlines
Deal found 4/16$114
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 4/234:10 pmYTZ - LAS
1 stop7h 30mPorter Airlines
Wed 4/309:05 amLAS - YTZ
1 stop6h 48mPorter Airlines
Deal found 4/16$136
This FlightHub deal was found by Cheapflights users on 4/16. 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.
Wed 6/259:00 amYYZ - LAX
2 stops14h 23mWestJet
Tue 8/1911:40 amLAX - YYZ
1 stop9h 44mWestJet
Deal found 4/16$144
This Air Canada deal was found by Cheapflights users on 4/16. 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.
Tue 10/73:25 pmYTZ - LAS
1 stop9h 47mAir Canada
Tue 10/2111:15 pmLAS - YTZ
1 stop9h 30mAir Canada
Deal found 4/16$148
This United Airlines deal was found by Cheapflights users on 4/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/35:30 pmYYZ - LAS
1 stop7h 42mUnited Airlines
Tue 5/612:59 amLAS - YYZ
1 stop7h 35mUnited Airlines
Deal found 4/16$155
This Air Canada deal was found by Cheapflights users on 4/16. 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.
Fri 5/24:00 pmYYZ - LAS
1 stop9h 19mAir Canada
Tue 5/64:50 pmLAS - YYZ
1 stop10h 14mAir Canada
Deal found 4/16$156
This Cheapflightsfares deal was found by Cheapflights users on 4/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/26:55 amYYZ - LAS
1 stop7h 30mPorter Airlines
Mon 5/511:10 pmLAS - YYZ
Nonstop4h 25mPorter Airlines
Deal found 4/17$160
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 5/69:45 amYYZ - LAX
Nonstop5h 25mMultiple Airlines
Fri 5/1611:40 amLAX - YYZ
1 stop8h 16mMultiple Airlines
Deal found 4/16$170
This lastminute.com deal was found by Cheapflights users on 4/16. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/166:45 amYUL - LAX
2 stops14h 25mWestJet
Mon 8/1811:40 amLAX - YUL
1 stop10h 03mWestJet
Deal found 4/16$175
This Air Canada deal was found by Cheapflights users on 4/17. 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.
Fri 5/235:15 pmYYZ - LAX
1 stop9h 58mAir Canada
Wed 5/2810:20 pmLAX - YYZ
1 stop10h 19mAir Canada
Deal found 4/17$186
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Sat 5/1011:00 amYYZ - SAN
2 stops15h 19mMultiple Airlines
Wed 5/146:15 amSAN - YYZ
1 stop8h 05mMultiple Airlines
Deal found 4/16$190

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 April 17, 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

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sat 5/31

12:00 pm-8:21 pm

2 stops11h 21m

Las Vegas Harry Reid Intl

Tue 6/3

1:25 pm-6:52 am

2 stops14h 27m

$112

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sat 5/31

1:50 pm-3:43 pm

Nonstop4h 53m

Las Vegas Harry Reid Intl

Tue 6/3

1:25 pm-5:51 am

2 stops13h 26m

$114

TorontoLas Vegas

YTZ - LAS

YTZLAS

Toronto Island

Wed 4/23

4:10 pm-8:40 pm

1 stop7h 30m

Las Vegas Harry Reid Intl

Wed 4/30

9:05 am-6:53 pm

1 stop6h 48m

$136

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sun 5/11

6:55 am-11:25 am

1 stop7h 30m

Las Vegas Harry Reid Intl

Wed 5/14

4:45 pm-12:12 am

Nonstop4h 27m

$143

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Wed 6/25

9:00 am-8:23 pm

2 stops14h 23m

Los Angeles

Tue 8/19

11:40 am-12:24 am

1 stop9h 44m

$144

TorontoLas Vegas

YTZ - LAS

YTZLAS

Toronto Island

Sat 5/10

12:25 pm-11:59 pm

2 stops14h 34m

Las Vegas Harry Reid Intl

Tue 5/13

6:00 am-9:35 pm

2 stops12h 35m

$155

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sat 5/3

5:30 pm-10:12 pm

1 stop7h 42m

Las Vegas Harry Reid Intl

Tue 5/6

12:59 am-11:34 am

1 stop7h 35m

$155

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Fri 5/2

4:00 pm-10:19 pm

1 stop9h 19m

Las Vegas Harry Reid Intl

Tue 5/6

4:50 pm-6:04 am

1 stop10h 14m

$156

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Thu 6/5

6:35 pm-8:59 pm

Nonstop5h 24m

Los Angeles

Mon 6/9

9:55 pm-5:46 am

Nonstop4h 51m

$165

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Tue 5/6

9:45 am-12:10 pm

Nonstop5h 25m

Los Angeles

Fri 5/16

11:40 am-10:56 pm

1 stop8h 16m

$170

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 60 results
1
2
3
...
6

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 June is currently the most expensive (average of $328). 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 April 17, 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 April 17, 2025.

The most flights from CAON to USCA are scheduled on a Monday (21 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (17 on average).

Rainfall in California by month

Plan your trip to California by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in California 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 California when rainfall is around 0.0 in.

Temperature in California by month

Plan your trip to California by taking into account the average temperature totals by month.

If weather is an important factor for your trip to California, 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 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 April 17, 2025.
See what other customers who have flown with Alaska Airlines, Porter Airlines and Delta from Ontario to California have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,887 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Porter Airlines
8.0
Very good
281 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,916 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Air Transat
7.8
Good
385 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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 $92. 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 June is currently the most expensive (average of $328). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to California

See prices for flight routes from nearby airports that may be better suited for you.
Toronto Island to Newark flights
Pearson Intl to Newark flights
Pierre Elliott Trudeau Intl to Fort Lauderdale flights
Vancouver Intl to Los Angeles flights
Pearson Intl to Las Vegas flights
Pearson Intl to Fort Lauderdale flights
Pearson Intl to John F Kennedy Intl flights
Pearson Intl to LaGuardia flights
Pierre Elliott Trudeau Intl to Newark flights
Vancouver Intl to Las Vegas flights
Pierre Elliott Trudeau Intl to LaGuardia flights
Pearson Intl to Los Angeles flights
Pearson Intl to San Francisco flights
Pearson Intl to Miami flights
Pearson Intl to Orlando flights
Vancouver Intl to John F Kennedy Intl flights
Pearson Intl to Dallas/Fort Worth flights
Pierre Elliott Trudeau Intl to Miami flights
Pierre Elliott Trudeau Intl to John F Kennedy Intl flights
Calgary to Las Vegas flights
Vancouver Intl to Newark flights
Pearson Intl to Reagan-National flights
Vancouver Intl to San Francisco flights
Pearson Intl to Seattle flights
Pearson Intl to Dulles Intl flights
Pierre Elliott Trudeau Intl to Los Angeles flights
Pearson Intl to O'Hare Intl flights
Pearson Intl to Hobby flights
Toronto Island to Fort Lauderdale flights
Pearson Intl to Sky Harbor Intl flights
Vancouver Intl to O'Hare Intl flights
Pearson Intl to Nashville flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Pearson Intl to Atlanta flights
Pearson Intl to Boston flights
Vancouver Intl to San Diego flights
Pierre Elliott Trudeau Intl to Orlando flights
Pearson Intl to Tampa flights
Vancouver Intl to Honolulu flights
Pearson Intl to George Bush Intcntl flights
Toronto Island to Orlando flights
Vancouver Intl to Sky Harbor Intl flights
Pierre Elliott Trudeau Intl to O'Hare Intl flights
Toronto Island to Boston flights
Vancouver Intl to LaGuardia flights
Vancouver Intl to Seattle flights
Vancouver Intl to Ontario flights
Pierre Elliott Trudeau Intl to San Francisco flights
Ottawa to Newark flights
Pearson Intl to Midway flights

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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$115Average$346FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$148Average$496FlexibilityNo cancel feeOn-time69%
WestJetCheapest$161Average$392FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$186Average$471FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$199Average$465FlexibilityNo cancel feeOn-time71%
Air TransatCheapest$210Average$379FlexibilityNo cancel feeOn-time50%
DeltaCheapest$257Average$437FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.