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$91+ 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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LAX
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$130
(FlightHub)

One-way from

$91
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$359

Good round-trip deal

$176 or less

Good one-way deal

$145 or less
Provider with most accurate pricing for Toronto (YTO)-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Toronto (YTO)-Los Angeles flights.
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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. 7% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This FlightHub deal was found by Cheapflights users on 3/27. 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.
Sun 4/207:25 pmYYZ - LAS
Nonstop5h 03mPorter Airlines
Thu 4/2410:35 pmLAS - YYZ
Nonstop4h 20mPorter Airlines
Deal found 3/27$130
This Mytrip deal was found by Cheapflights users on 3/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/77:25 pmYYZ - LAS
Nonstop5h 03mMultiple Airlines
Wed 4/911:25 pmLAS - YYZ
Nonstop4h 18mMultiple Airlines
Deal found 3/26$131
This FlightHub deal was found by Cheapflights users on 3/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/207:25 pmYYZ - LAS
Nonstop5h 03mAir Transat
Wed 4/2310:35 pmLAS - YYZ
Nonstop4h 20mAir Transat
Deal found 3/28$135
This Trip.com deal was found by Cheapflights users on 3/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/284:10 pmYTZ - LAS
1 stop7h 30mPorter Airlines
Thu 5/19:10 amLAS - YTZ
1 stop7h 17mPorter Airlines
Deal found 3/27$139
This Mytrip deal was found by Cheapflights users on 3/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/97:30 amYYZ - LAS
1 stop11h 20mAir Canada
Wed 4/161:00 pmLAS - YYZ
1 stop6h 48mAir Canada
Deal found 3/27$144
This FlightHub deal was found by Cheapflights users on 3/27. 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.
Sat 4/126:30 amYYZ - LAS
1 stop9h 47mWestJet
Wed 4/1611:25 pmLAS - YYZ
Nonstop4h 18mWestJet
Deal found 3/27$146
This United Airlines deal was found by Cheapflights users on 3/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/112:00 pmYYZ - LAS
1 stop7h 33mUnited Airlines
Mon 4/1412:59 amLAS - YYZ
1 stop7h 31mUnited Airlines
Deal found 3/28$168
This Air Canada deal was found by Cheapflights users on 3/26. 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 3/26$176
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/292:00 pmYYZ - LAX
1 stop9h 23mWestJet
Tue 6/2412:35 pmLAX - YYZ
1 stop9h 09mWestJet
Deal found 3/27$192
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/197:25 pmYYZ - LAX
1 stop13h 50mMultiple Airlines
Thu 5/297:00 amLAX - YYZ
1 stop8h 54mMultiple Airlines
Deal found 3/27$194
This Kissandfly.com deal was found by Cheapflights users on 3/26. 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.
Fri 5/25:20 pmYYZ - LAS
1 stop7h 39mBritish Airways
Wed 5/711:54 amLAS - YYZ
1 stop8h 06mBritish Airways
Deal found 3/26$196
This Kiwi.com deal was found by Cheapflights users on 3/26. 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 4/107:25 pmYYZ - SAN
1 stop15h 09mMultiple Airlines
Thu 4/176:15 amSAN - YYZ
1 stop20h 40mMultiple Airlines
Deal found 3/26$200

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 March 28, 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

Sun 4/20

7:25 pm-9:28 pm

Nonstop5h 03m

Las Vegas Harry Reid Intl

Thu 4/24

10:35 pm-5:55 am

Nonstop4h 20m

$130

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Mon 4/7

7:25 pm-9:28 pm

Nonstop5h 03m

Las Vegas Harry Reid Intl

Wed 4/9

11:25 pm-6:43 am

Nonstop4h 18m

$131

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sun 4/20

7:25 pm-9:28 pm

Nonstop5h 03m

Las Vegas Harry Reid Intl

Wed 4/23

10:35 pm-5:55 am

Nonstop4h 20m

$135

TorontoLas Vegas

YTZ - LAS

YTZLAS

Toronto Island

Mon 4/14

4:10 pm-8:40 pm

1 stop7h 30m

Las Vegas Harry Reid Intl

Fri 4/18

9:10 am-6:53 pm

1 stop6h 43m

$137

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Wed 4/9

7:30 am-3:50 pm

1 stop11h 20m

Las Vegas Harry Reid Intl

Wed 4/16

1:00 pm-10:48 pm

1 stop6h 48m

$144

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sat 4/12

6:30 am-1:17 pm

1 stop9h 47m

Las Vegas Harry Reid Intl

Wed 4/16

11:25 pm-6:43 am

Nonstop4h 18m

$146

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Fri 4/11

2:00 pm-6:33 pm

1 stop7h 33m

Las Vegas Harry Reid Intl

Mon 4/14

12:59 am-11:30 am

1 stop7h 31m

$168

TorontoLas Vegas

YTZ - LAS

YTZLAS

Toronto Island

Mon 4/7

3:25 pm-9:37 pm

1 stop9h 12m

Las Vegas Harry Reid Intl

Fri 4/11

7:00 am-5:50 pm

1 stop7h 50m

$184

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Tue 4/29

11:00 am-5:17 pm

1 stop9h 17m

Los Angeles

Mon 6/23

11:40 am-12:24 am

1 stop9h 44m

$192

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Sat 4/19

7:25 pm-6:15 am

1 stop13h 50m

Los Angeles

Thu 5/29

7:00 am-6:54 pm

1 stop8h 54m

$194

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

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 $330). 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 March 28, 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.

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 March 28, 2025.
See what other customers who have flown with Delta, Alaska Airlines and Porter Airlines 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.
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,896 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Alaska Airlines
8.0
Very good
9,798 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Porter Airlines
7.9
Good
276 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Transat
7.8
Good
381 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Copa Airlines
7.5
Good
1,395 reviews
Delta
8.0
Very good
7,896 reviews

Overall

8.0

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 Porter Airlines, with whom users have recently found tickets for as low as $91. However, be on the lookout for offers from Air Canada and Air Transat, 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 $330). 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$115Average$348FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$149Average$519FlexibilityNo cancel feeOn-time69%
WestJetCheapest$170Average$421FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$186Average$481FlexibilityNo cancel feeOn-time67%
DeltaCheapest$199Average$469FlexibilityNo cancel feeOn-timeN/A
Air TransatCheapest$210Average$379FlexibilityNo cancel feeOn-time50%
American AirlinesCheapest$236Average$470FlexibilityNo cancel feeOn-time71%
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