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Cheap flights from Ontario to California from C$ 152

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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LAX
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to California

Enter your travel dates to find the best prices.

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 12 December 2025.

Sat 13/127:55 p.m.YYZ - LAS
Nonstop5h 07mPorter Airlines
Sun 14/1212:40 p.m.LAS - YYZ
Nonstop4h 15mPorter Airlines
Deal found 10/12C$ 232
Mon 15/128:25 p.m.YYZ - LAS
Nonstop5h 06mAir Canada
Tue 20/112:10 p.m.LAS - YYZ
Nonstop4h 15mAir Canada
Deal found 11/12C$ 247
Fri 12/129:45 a.m.YYZ - LAS
Nonstop5h 13mMultiple Airlines
Sat 24/111:05 p.m.LAS - YYZ
Nonstop4h 15mMultiple Airlines
Deal found 8/12C$ 250
Sat 13/127:55 p.m.YYZ - LAS
Nonstop5h 07mPorter Airlines
Wed 17/1212:40 p.m.LAS - YYZ
Nonstop4h 15mPorter Airlines
Deal found 10/12C$ 251
Mon 15/128:25 p.m.YYZ - LAS
Nonstop5h 06mAir Canada
Tue 13/14:45 p.m.LAS - YYZ
1 stop10h 14mAir Canada
Deal found 11/12C$ 255
Mon 15/128:25 p.m.YYZ - LAS
Nonstop5h 06mAir Canada
Mon 19/19:00 a.m.LAS - YYZ
1 stop9h 44mAir Canada
Deal found 11/12C$ 259
Thu 11/129:45 a.m.YYZ - LAS
Nonstop5h 13mWestJet
Fri 12/128:00 a.m.LAS - YYZ
1 stop8h 36mWestJet
Deal found 9/12C$ 263
Fri 12/129:45 a.m.YYZ - LAS
Nonstop5h 13mWestJet
Mon 15/1211:25 p.m.LAS - YYZ
Nonstop4h 22mWestJet
Deal found 10/12C$ 266
Sat 13/127:55 p.m.YYZ - LAS
Nonstop5h 07mPorter Airlines
Sat 24/111:05 p.m.LAS - YYZ
Nonstop4h 15mPorter Airlines
Deal found 8/12C$ 268
Fri 12/129:45 a.m.YYZ - LAS
Nonstop5h 13mMultiple Airlines
Sun 14/1211:05 p.m.LAS - YYZ
Nonstop4h 15mMultiple Airlines
Deal found 9/12C$ 269
Mon 15/1210:15 p.m.YYZ - LAS
1 stop17h 04mWestJet
Thu 18/129:15 p.m.LAS - YYZ
1 stop17h 26mWestJet
Deal found 11/12C$ 274
Mon 15/1210:30 a.m.YTZ - LAS
1 stop13h 09mAir Canada
Wed 17/129:10 a.m.LAS - YTZ
1 stop7h 45mAir Canada
Deal found 9/12C$ 392

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 12 December 2025.

Round-trip from

C$ 228

One-way from

C$ 152

Popular in

December

Cheapest in

May

Average price

C$ 581

Good round-trip deal

C$ 414 or less

Good one-way deal

C$ 229 or less
WestJet
  • WestJet
  • 9/1-18/1
  • Nonstop
  • 9h 31m total
  • Ontario to California
Search Deals
WestJet
  • WestJet
  • 3/3
  • 1 total stop
  • 11h 03m total
  • Ontario to California
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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

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 12 December 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 11/4

9:40 a.m.-6:13 p.m.

2 stops11h 33m

Las Vegas Harry Reid Intl

Mon 13/4

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

Nonstop4h 18m

C$ 241

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Thu 29/1

12:30 p.m.-9:31 p.m.

2 stops12h 01m

Las Vegas Harry Reid Intl

Sun 1/2

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

Nonstop4h 18m

C$ 245

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sat 11/4

9:40 a.m.-6:13 p.m.

2 stops11h 33m

Las Vegas Harry Reid Intl

Sat 18/4

7:05 p.m.-6:13 a.m.

1 stop8h 08m

C$ 245

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sat 11/4

7:55 p.m.-10:02 p.m.

Nonstop5h 07m

Las Vegas Harry Reid Intl

Mon 13/4

11:05 p.m.-6:20 a.m.

Nonstop4h 15m

C$ 251

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Wed 21/1

9:40 a.m.-6:39 p.m.

2 stops11h 59m

Las Vegas Harry Reid Intl

Sat 24/1

7:50 p.m.-12:09 a.m.

2 stops25h 19m

C$ 261

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Wed 21/1

8:25 p.m.-10:31 p.m.

Nonstop5h 06m

Las Vegas Harry Reid Intl

Sat 24/1

11:30 p.m.-6:40 a.m.

Nonstop4h 10m

C$ 268

TorontoLas Vegas

YTZ - LAS

YTZLAS

Toronto Island

Fri 29/5

4:05 p.m.-8:30 p.m.

1 stop7h 25m

Las Vegas Harry Reid Intl

Sun 31/5

9:35 a.m.-10:22 p.m.

1 stop9h 47m

C$ 288

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Wed 25/2

10:00 a.m.-12:36 p.m.

Nonstop5h 36m

Los Angeles

Wed 4/3

1:40 p.m.-9:22 p.m.

Nonstop4h 42m

C$ 368

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Tue 24/2

10:00 a.m.-12:36 p.m.

Nonstop5h 36m

Los Angeles

Mon 2/3

1:40 p.m.-9:22 p.m.

Nonstop4h 42m

C$ 368

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Tue 3/3

10:00 a.m.-12:39 p.m.

Nonstop5h 39m

Los Angeles

Mon 9/3

1:40 p.m.-9:22 p.m.

Nonstop4h 42m

C$ 368

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

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 C$ 110). Flying from Region of Ontario to California in March is currently the most expensive (average of C$ 261). 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 12 December 2025.

It’s optimal to fly from Region of Ontario to California in the evening. By choosing this option you can save up to 18% on the cost of your flight, compared to 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 16 December 2024.

Travelers seeking maximum savings on their Region of Ontario to California flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday afternoons 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 12 December 2025.

The most flights from CAON to USCA are scheduled on a Thursday (16 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 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 12 December 2025.
Check out reviews from past customers who have flown with Porter Airlines,Air Transat, andUnited Airlines from Ontario to California to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
398 reviews
Check prices

Food

7.6

Boarding

8.2

Entertainment

7.0

Overall

8.0

Comfort

7.9

Crew

8.6

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
Porter Airlines
8.0
Very good
398 reviews
Porter Airlines
8.0
Very good
398 reviews
Check prices

Food

7.6

Boarding

8.2

Entertainment

7.0

Overall

8.0

Comfort

7.9

Crew

8.6

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
Air Transat
7.8
Good
480 reviews
Porter Airlines
8.0
Very good
398 reviews
Check prices

Food

7.6

Boarding

8.2

Entertainment

7.0

Overall

8.0

Comfort

7.9

Crew

8.6

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
United Airlines
7.4
Good
9,093 reviews
Porter Airlines
8.0
Very good
398 reviews
Check prices

Food

7.6

Boarding

8.2

Entertainment

7.0

Overall

8.0

Comfort

7.9

Crew

8.6

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
WestJet
7.2
Good
3,195 reviews
Porter Airlines
8.0
Very good
398 reviews
Check prices

Food

7.6

Boarding

8.2

Entertainment

7.0

Overall

8.0

Comfort

7.9

Crew

8.6

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
Air Canada
7.1
Good
10,517 reviews
Porter Airlines
8.0
Very good
398 reviews
Check prices

Food

7.6

Boarding

8.2

Entertainment

7.0

Overall

8.0

Comfort

7.9

Crew

8.6

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?

    WestJet, Porter Airlines, and Air Canada can get you from Region of Ontario to California in just under 7h 25m. Your travel time can differ by up to 4h 08m. The distance between Region of Ontario and California is about 3137 km. This flight may include one or multiple stops.

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

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as C$ 135. Users have also found prices from C$ 143 and C$ 171 on Porter Airlines 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, August is the cheapest month in which you can book a flight from Region of Ontario to California (average of C$ 110). Flying from Region of Ontario to California in March is currently the most expensive (average of C$ 261). 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 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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 132AverageC$ 600FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 196AverageC$ 417FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 200AverageC$ 550FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 216AverageC$ 439FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
DeltaCheapestC$ 228AverageC$ 490FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air TransatCheapestC$ 238AverageC$ 497FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapestC$ 285AverageC$ 596FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapestC$ 334AverageC$ 678FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
APG AirlinesCheapestC$ 609AverageC$ 610FlexibilityNo cancel feeOn-timeN/A
Search APG Airlines 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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