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Cheap flights from Ontario to California from C$ 130

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 30/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LAX
2 Apr — 9 Apr1
1 adult

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 28 March 2025.

Round-trip from

C$ 186

One-way from

C$ 130

Popular in

December

Cheapest in

September

Average price

C$ 513

Good round-trip deal

C$ 298 or less

Good one-way deal

C$ 207 or less
Porter Airlines
  • Porter Airlines
  • 20/4-24/4
  • Nonstop
  • 9h 23m total
  • Ontario to California
Porter Airlines
  • Porter Airlines
  • 30/4
  • 1 total stop
  • 9h 40m total
  • Ontario to California
Highest demand for flights based on searches. 7% potential increase in price (C$ 48 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease (C$ 23 potential savings vs. average RT price).
Average for round-trip flights in March 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.

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 28 March 2025.

Sun 20/47:25 p.m.YYZ - LAS
Nonstop5h 03mPorter Airlines
Thu 24/410:35 p.m.LAS - YYZ
Nonstop4h 20mPorter Airlines
Deal found 27/3C$ 186
Mon 7/47:25 p.m.YYZ - LAS
Nonstop5h 03mMultiple Airlines
Wed 9/411:25 p.m.LAS - YYZ
Nonstop4h 18mMultiple Airlines
Deal found 26/3C$ 187
Sun 20/47:25 p.m.YYZ - LAS
Nonstop5h 03mAir Transat
Wed 23/410:35 p.m.LAS - YYZ
Nonstop4h 20mAir Transat
Deal found 28/3C$ 193
Mon 14/44:10 p.m.YTZ - LAS
1 stop7h 30mPorter Airlines
Fri 18/49:10 a.m.LAS - YTZ
1 stop6h 43mPorter Airlines
Deal found 27/3C$ 196
Wed 9/47:30 a.m.YYZ - LAS
1 stop11h 20mAir Canada
Wed 16/41:00 p.m.LAS - YYZ
1 stop6h 48mAir Canada
Deal found 27/3C$ 206
Sat 12/46:30 a.m.YYZ - LAS
1 stop9h 47mWestJet
Wed 16/411:25 p.m.LAS - YYZ
Nonstop4h 18mWestJet
Deal found 27/3C$ 209
Fri 11/410:15 a.m.YYZ - LAS
1 stop15h 01mUnited Airlines
Sun 13/411:55 p.m.LAS - YYZ
1 stop11h 24mUnited Airlines
Deal found 28/3C$ 240
Tue 7/103:25 p.m.YTZ - LAS
1 stop9h 47mAir Canada
Tue 21/1011:15 p.m.LAS - YTZ
1 stop9h 30mAir Canada
Deal found 26/3C$ 252
Tue 29/42:00 p.m.YYZ - LAX
1 stop9h 23mWestJet
Tue 24/612:35 p.m.LAX - YYZ
1 stop9h 09mWestJet
Deal found 27/3C$ 274
Sat 19/47:25 p.m.YYZ - LAX
1 stop13h 50mMultiple Airlines
Thu 29/57:00 a.m.LAX - YYZ
1 stop8h 54mMultiple Airlines
Deal found 27/3C$ 277
Fri 2/55:20 p.m.YYZ - LAS
1 stop7h 39mBritish Airways
Wed 7/511:54 a.m.LAS - YYZ
1 stop8h 06mBritish Airways
Deal found 26/3C$ 280
Mon 21/46:10 p.m.YOW - LAS
Nonstop5h 30mPorter Airlines
Wed 30/49:10 a.m.LAS - YOW
Nonstop4h 35mPorter Airlines
Deal found 27/3C$ 287

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 629,999 searches. Data last updated 28 March 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 20/4

7:25 p.m.-9:28 p.m.

Nonstop5h 03m

Las Vegas Harry Reid Intl

Thu 24/4

10:35 p.m.-5:55 a.m.

Nonstop4h 20m

C$ 186

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Mon 7/4

7:25 p.m.-9:28 p.m.

Nonstop5h 03m

Las Vegas Harry Reid Intl

Wed 9/4

11:25 p.m.-6:43 a.m.

Nonstop4h 18m

C$ 187

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sun 20/4

7:25 p.m.-9:28 p.m.

Nonstop5h 03m

Las Vegas Harry Reid Intl

Wed 23/4

10:35 p.m.-5:55 a.m.

Nonstop4h 20m

C$ 193

TorontoLas Vegas

YTZ - LAS

YTZLAS

Toronto Island

Mon 14/4

4:10 p.m.-8:40 p.m.

1 stop7h 30m

Las Vegas Harry Reid Intl

Fri 18/4

9:10 a.m.-6:53 p.m.

1 stop6h 43m

C$ 196

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Wed 9/4

7:30 a.m.-3:50 p.m.

1 stop11h 20m

Las Vegas Harry Reid Intl

Wed 16/4

1:00 p.m.-10:48 p.m.

1 stop6h 48m

C$ 206

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sat 12/4

6:30 a.m.-1:17 p.m.

1 stop9h 47m

Las Vegas Harry Reid Intl

Wed 16/4

11:25 p.m.-6:43 a.m.

Nonstop4h 18m

C$ 209

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Fri 11/4

2:00 p.m.-6:33 p.m.

1 stop7h 33m

Las Vegas Harry Reid Intl

Mon 14/4

12:59 a.m.-11:30 a.m.

1 stop7h 31m

C$ 240

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Tue 22/4

10:15 a.m.-5:14 p.m.

1 stop9h 59m

Las Vegas Harry Reid Intl

Tue 29/4

11:55 p.m.-10:04 a.m.

1 stop7h 09m

C$ 256

TorontoLas Vegas

YTZ - LAS

YTZLAS

Toronto Island

Mon 7/4

3:25 p.m.-9:37 p.m.

1 stop9h 12m

Las Vegas Harry Reid Intl

Fri 11/4

7:00 a.m.-5:50 p.m.

1 stop7h 50m

C$ 263

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Tue 29/4

2:00 p.m.-8:23 p.m.

1 stop9h 23m

Los Angeles

Tue 24/6

12:35 p.m.-12:44 a.m.

1 stop9h 09m

C$ 274

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/3

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, September is the cheapest month in which you can book a flight from Region of Ontario to California (average of C$ 231). Flying from Region of Ontario to California in July is currently the most expensive (average of C$ 314). 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 28 March 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 - 87.0 mm per month. February is typically the wettest month, when rainfall can reach 87.0 mm. July is typically the driest time to visit California when rainfall is around 0.0 mm.

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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

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 28 March 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta and Porter Airlines from Ontario to California by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
8.0
Very good

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Overall

8.0

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

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?

    For one-way options, check prices for Porter Airlines. According to our data, you can fly for as low as C$ 130. Users have also found prices from C$ 132 and C$ 133 on Air Canada and Air Transat, respectively.

  • 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, September is the cheapest month in which you can book a flight from Region of Ontario to California (average of C$ 231). Flying from Region of Ontario to California in July is currently the most expensive (average of C$ 314). 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 9 airlines flying from Ontario to California

Discover the top 9 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 629,999 searches. Data last updated 28 March 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 230AverageC$ 525FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 238AverageC$ 548FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
American AirlinesCheapestC$ 238AverageC$ 656FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapestC$ 256AverageC$ 567FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 296AverageC$ 708FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air TransatCheapestC$ 298AverageC$ 503FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Air CanadaCheapestC$ 314AverageC$ 666FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Alaska AirlinesCheapestC$ 347AverageC$ 753FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
WestJet EncoreCheapestC$ 666AverageC$ 733FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to California?

Cheapflights makes it easy to find Ontario to California flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Ontario to California?

Cheapflights simply makes it quick and affordable to book flights from Ontario to California by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Ontario to California with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ontario to California, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ontario to California become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to California from Ontario today and book when prices fit your budget.

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