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Cheap flights from Ontario to California from C$ 128

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 26/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LAX
22 Apr — 29 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 17 April 2025.

Round-trip from

C$ 182

One-way from

C$ 128

Popular in

December

Cheapest in

September

Average price

C$ 385

Good round-trip deal

C$ 295 or less

Good one-way deal

C$ 205 or less
Air Canada
  • Air Canada
  • 6/5-12/5
  • Nonstop
  • 9h 14m total
  • Ontario to California
WestJet
  • WestJet
  • 26/5
  • 1 total stop
  • 18h 30m total
  • Ontario to California
Highest demand for flights based on searches. 9% potential increase in price (C$ 59 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 April 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 17 April 2025.

Tue 6/58:35 p.m.YYZ - LAS
Nonstop4h 55mAir Canada
Mon 12/511:30 p.m.LAS - YYZ
Nonstop4h 19mAir Canada
Deal found 17/4C$ 182
Wed 7/52:00 p.m.YYZ - LAS
1 stop9h 21mWestJet
Sun 11/58:00 a.m.LAS - YYZ
2 stops13h 35mWestJet
Deal found 17/4C$ 183
Thu 18/97:45 p.m.YKF - LAS
1 stop17h 55mWestJet
Mon 22/910:00 a.m.LAS - YKF
2 stops11h 45mWestJet
Deal found 16/4C$ 184
Wed 23/44:10 p.m.YTZ - LAS
1 stop7h 30mPorter Airlines
Wed 30/49:05 a.m.LAS - YTZ
1 stop6h 48mPorter Airlines
Deal found 16/4C$ 189
Wed 21/56:55 a.m.YYZ - LAS
1 stop7h 30mMultiple Airlines
Wed 28/56:20 p.m.LAS - YYZ
1 stop8h 54mMultiple Airlines
Deal found 17/4C$ 194
Wed 25/69:00 a.m.YYZ - LAX
2 stops14h 23mWestJet
Tue 19/811:40 a.m.LAX - YYZ
1 stop9h 44mWestJet
Deal found 16/4C$ 200
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 16/4C$ 205
Sun 11/58:05 p.m.YYZ - LAS
Nonstop4h 53mPorter Airlines
Tue 13/54:45 p.m.LAS - YYZ
Nonstop4h 27mPorter Airlines
Deal found 17/4C$ 230
Fri 9/510:05 a.m.YYZ - LAS
1 stop11h 07mUnited Airlines
Sat 10/512:59 a.m.LAS - YYZ
1 stop7h 35mUnited Airlines
Deal found 17/4C$ 232
Tue 6/59:45 a.m.YYZ - LAX
Nonstop5h 25mMultiple Airlines
Wed 14/56:05 p.m.LAX - YYZ
1 stop9h 09mMultiple Airlines
Deal found 16/4C$ 236
Sun 18/56:35 p.m.YYZ - LAX
Nonstop5h 24mAir Canada
Mon 26/510:20 p.m.LAX - YYZ
1 stop9h 19mAir Canada
Deal found 17/4C$ 237
Sat 16/86:45 a.m.YUL - LAX
2 stops14h 25mWestJet
Mon 18/811:40 a.m.LAX - YUL
1 stop10h 03mWestJet
Deal found 16/4C$ 243

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 17 April 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 31/5

12:00 p.m.-8:21 p.m.

2 stops11h 21m

Las Vegas Harry Reid Intl

Tue 3/6

1:25 p.m.-6:52 a.m.

2 stops14h 27m

C$ 155

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sat 31/5

1:50 p.m.-3:43 p.m.

Nonstop4h 53m

Las Vegas Harry Reid Intl

Tue 3/6

1:25 p.m.-5:51 a.m.

2 stops13h 26m

C$ 158

TorontoLas Vegas

YKF - LAS

YKFLAS

Toronto Region of Waterloo Intl

Thu 18/9

7:45 p.m.-10:40 a.m.

1 stop17h 55m

Las Vegas Harry Reid Intl

Mon 22/9

10:00 a.m.-12:45 a.m.

2 stops11h 45m

C$ 184

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Wed 25/6

9:00 a.m.-8:23 p.m.

2 stops14h 23m

Los Angeles

Tue 19/8

11:40 a.m.-12:24 a.m.

1 stop9h 44m

C$ 200

TorontoLas Vegas

YTZ - LAS

YTZLAS

Toronto Island

Tue 7/10

3:25 p.m.-10:12 p.m.

1 stop9h 47m

Las Vegas Harry Reid Intl

Tue 21/10

11:15 p.m.-11:45 a.m.

1 stop9h 30m

C$ 205

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sat 3/5

5:30 p.m.-10:12 p.m.

1 stop7h 42m

Las Vegas Harry Reid Intl

Tue 6/5

12:59 a.m.-11:34 a.m.

1 stop7h 35m

C$ 215

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Fri 2/5

4:00 p.m.-10:19 p.m.

1 stop9h 19m

Las Vegas Harry Reid Intl

Tue 6/5

4:50 p.m.-6:04 a.m.

1 stop10h 14m

C$ 216

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Fri 2/5

6:55 a.m.-11:25 a.m.

1 stop7h 30m

Las Vegas Harry Reid Intl

Mon 5/5

11:10 p.m.-6:35 a.m.

Nonstop4h 25m

C$ 222

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Tue 6/5

9:45 a.m.-12:10 p.m.

Nonstop5h 25m

Los Angeles

Wed 14/5

6:05 p.m.-6:14 a.m.

1 stop9h 09m

C$ 236

MontrealLos Angeles

YUL - LAX

YULLAX

Montreal Pierre Elliott Trudeau Intl

Sat 16/8

6:45 a.m.-6:10 p.m.

2 stops14h 25m

Los Angeles

Mon 18/8

11:40 a.m.-12:43 a.m.

1 stop10h 03m

C$ 243

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/4

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$ 230). 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 17 April 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 17 April 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 - 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 17 April 2025.
Get a feel of what it's like to fly with Alaska Airlines, Porter Airlines and Delta 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.

Boarding

8.1

Comfort

7.9

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

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

Boarding

8.1

Comfort

7.9

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

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

Boarding

8.1

Comfort

7.9

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
8.0
Very good

Boarding

8.1

Comfort

7.9

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

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

Boarding

8.1

Comfort

7.9

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

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

Boarding

8.1

Comfort

7.9

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

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?

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as C$ 128. Users have also found prices from C$ 133 and C$ 136 on Porter Airlines and Air Canada, 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$ 230). 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 17 April 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 210AverageC$ 506FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 229AverageC$ 522FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
American AirlinesCheapestC$ 231AverageC$ 636FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air TransatCheapestC$ 239AverageC$ 485FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
DeltaCheapestC$ 248AverageC$ 536FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 287AverageC$ 670FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 305AverageC$ 637FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Alaska AirlinesCheapestC$ 336AverageC$ 729FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
WestJet EncoreCheapestC$ 646AverageC$ 703FlexibilityNo 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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