California

$109+ 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 1/16. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LAX
ene. 14 — ene. 211
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Cheap 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 diciembre 15, 2025.

This United Airlines deal was found by Cheapflights users on 12/13. 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.
mié. 12/176:10 amYYZ - LAS
1 stop12h 43mUnited Airlines
sáb. 1/1711:53 amLAS - YYZ
2 stops8h 53mUnited Airlines
Deal found 12/13$215
This United Airlines deal was found by Cheapflights users on 12/13. 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.
mar. 12/164:10 pmYYZ - LAS
2 stops10h 49mUnited Airlines
mié. 12/1711:55 amLAS - YYZ
2 stops9h 04mUnited Airlines
Deal found 12/13$228
This United Airlines deal was found by Cheapflights users on 12/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/154:10 pmYYZ - LAS
1 stop7h 36mUnited Airlines
vie. 12/262:26 pmLAS - YYZ
1 stop6h 33mUnited Airlines
Deal found 12/12$258
This Kiwi.com deal was found by Cheapflights users on 12/14. 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.
mié. 12/3110:50 pmYYZ - LAS
1 stop13h 09mWestJet
jue. 1/88:00 amLAS - YYZ
2 stops12h 39mWestJet
Deal found 12/14$263
This Air Canada deal was found by Cheapflights users on 12/14. 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.
mié. 12/176:20 amYYZ - LAS
1 stop17h 19mAir Canada
jue. 12/189:10 amLAS - YYZ
1 stop10h 54mAir Canada
Deal found 12/14$271
This Air Canada deal was found by Cheapflights users on 12/13. 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.
mar. 12/161:00 pmYYZ - LAS
1 stop10h 39mAir Canada
jue. 12/189:10 amLAS - YYZ
1 stop10h 54mAir Canada
Deal found 12/13$272
This Kiwi.com deal was found by Cheapflights users on 12/14. 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.
mar. 12/164:45 pmYYZ - LAS
1 stop9h 08mMultiple Airlines
jue. 12/1812:40 pmLAS - YYZ
Nonstop4h 15mMultiple Airlines
Deal found 12/14$276
This Kiwi.com deal was found by Cheapflights users on 12/14. 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.
mar. 12/164:45 pmYYZ - LAS
1 stop9h 08mMultiple Airlines
mié. 12/177:05 pmLAS - YYZ
1 stop14h 23mMultiple Airlines
Deal found 12/14$301
This United Airlines deal was found by Cheapflights users on 12/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/232:45 pmYYZ - LAS
1 stop11h 00mUnited Airlines
lun. 1/267:06 pmLAS - YYZ
2 stops16h 08mUnited Airlines
Deal found 12/12$303
This Air Canada deal was found by Cheapflights users on 12/13. 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.
lun. 12/1510:30 amYTZ - LAS
1 stop13h 09mAir Canada
lun. 12/229:10 amLAS - YTZ
1 stop7h 45mAir Canada
Deal found 12/13$354
This United Airlines deal was found by Cheapflights users on 12/14. 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.
mié. 12/317:40 pmYYZ - LAX
1 stop16h 23mUnited Airlines
dom. 1/1111:05 pmLAX - YYZ
1 stop17h 40mUnited Airlines
Deal found 12/14$399
This oojo deal was found by Cheapflights users on 12/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/156:45 amYUL - LAS
2 stops14h 26mWestJet
mié. 12/177:05 pmLAS - YUL
1 stop9h 00mWestJet
Deal found 12/14$407

Find flight deals from Ontario to California

Keep the following information in mind while searching for Ontario to California flight deals. Data was last updated diciembre 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$165
(oojo)

One-way from

$109
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$423

Good round-trip deal

$235 or less

Good one-way deal

$135 or less
Provider with most accurate pricing for Toronto (YTO)-Los Angeles flight deals.
Provider most trusted by Cheapflights users for Toronto (YTO)-Los Angeles flights.
From Ontario to California
One-way flight from Ontario to California
Highest demand for flights based on searches. 12% potential increase in price ($39 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($13 potential savings vs. average RT price).
Average for round-trip flights in December 2025
Price to beat on a round-trip flight from Ontario to California.
Price to beat on a one-way flight from Ontario to California.

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 diciembre 15, 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

mar. 1/6

2:57 pm-9:51 pm

1 stop9h 54m

Las Vegas Harry Reid Intl

lun. 1/12

6:00 am-4:52 pm

1 stop7h 52m

$201

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

mié. 1/14

2:45 pm-9:59 pm

2 stops10h 14m

Las Vegas Harry Reid Intl

sáb. 1/17

6:00 am-4:52 pm

1 stop7h 52m

$201

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

sáb. 1/17

7:30 am-6:29 pm

2 stops13h 59m

Las Vegas Harry Reid Intl

sáb. 1/17

11:18 pm-11:48 am

1 stop9h 30m

$201

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

dom. 1/18

6:10 am-9:59 pm

1 stop18h 49m

Las Vegas Harry Reid Intl

jue. 1/22

6:00 am-4:52 pm

1 stop7h 52m

$201

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

mar. 1/13

12:45 pm-8:32 pm

2 stops10h 47m

Las Vegas Harry Reid Intl

sáb. 1/17

11:53 am-11:46 pm

2 stops8h 53m

$201

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

mar. 3/3

2:45 pm-8:22 pm

1 stop8h 37m

Las Vegas Harry Reid Intl

vie. 3/6

11:59 pm-9:58 am

1 stop6h 59m

$205

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

mar. 3/10

4:10 pm-11:12 am

2 stops22h 02m

Las Vegas Harry Reid Intl

dom. 3/15

11:59 pm-7:45 pm

1 stop16h 46m

$205

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

jue. 3/12

9:00 pm-8:13 am

1 stop14h 13m

Las Vegas Harry Reid Intl

sáb. 3/28

10:43 pm-9:19 am

1 stop7h 36m

$205

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

jue. 2/19

10:00 am-8:22 pm

1 stop13h 22m

Las Vegas Harry Reid Intl

mar. 2/24

5:20 am-3:02 pm

1 stop6h 42m

$205

TorontoLas Vegas

YTZ - LAS

YTZLAS

Toronto Island

jue. 1/15

10:30 am-8:39 pm

1 stop13h 09m

Las Vegas Harry Reid Intl

mar. 1/20

9:00 am-9:35 pm

1 stop9h 35m

$238

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

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, August is the cheapest month in which you can book a flight from Region of Ontario to California (average of $80). Flying from Region of Ontario to California in March is currently the most expensive (average of $189). 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 diciembre 15, 2025.

When flying from Region of Ontario to California, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 17% versus a flight in the afternoon.

What is the cheapest day to fly from Region of Ontario to California?

Use this chart to determine the cheapest time to fly round-trip from Ontario to California. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Region of Ontario to California flight should consider departing on Sunday at noon when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 diciembre 15, 2025.

The most flights from CAON to USCA are scheduled on a Friday (19 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 on average).

How much does it cost to fly round-trip from Region of Ontario to California?

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 diciembre 15, 2025.
Read through reviews of airlines operating flights from Ontario to California, such as Porter Airlines, Delta, and United Airlines. 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.

Crew

8.6

Overall

8.0

Comfort

7.9

Entertainment

7.0

Food

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Crew

8.6

Overall

8.0

Comfort

7.9

Entertainment

7.0

Food

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Crew

8.6

Overall

8.0

Comfort

7.9

Entertainment

7.0

Food

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Crew

8.6

Overall

8.0

Comfort

7.9

Entertainment

7.0

Food

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Crew

8.6

Overall

8.0

Comfort

7.9

Entertainment

7.0

Food

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Crew

8.6

Overall

8.0

Comfort

7.9

Entertainment

7.0

Food

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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.
  • How long is the flight from Region of Ontario to California?

    Airlines like United Airlines, Air Canada, and Delta fly from Region of Ontario to California in about 9h 54m. The time it takes to get you to your destination can typically vary by up to 3h 15m. There are 1938 mi between Region of Ontario and California. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $102. 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, August is the cheapest month in which you can book a flight from Region of Ontario to California (average of $80). Flying from Region of Ontario to California in March is currently the most expensive (average of $189). 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

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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.

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 diciembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$115Average$334FlexibilityNo cancel feeOn-time52%
WestJetCheapest$118Average$273FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$167Average$430FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$171Average$430FlexibilityNo cancel feeOn-time69%
DeltaCheapest$176Average$426FlexibilityNo cancel feeOn-timeN/A
Air TransatCheapest$182Average$392FlexibilityNo cancel feeOn-time50%
American AirlinesCheapest$199Average$483FlexibilityNo cancel feeOn-time71%

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