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Cheap flights from Ontario to California from C$ 150

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 22/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LAX
26 Jan — 2 Feb1
1 adult

Cheap flight deals from Ontario to California

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (CAON) to California (USCA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 January 2025.

Round-trip from

C$ 225

One-way from

C$ 150

Good round-trip deal

C$ 351 or less

Good one-way deal

C$ 208 or less
Porter Airlines
  • Porter Airlines
  • 5/2-9/2
  • 1 total stop
  • 14h 00m total
  • Ontario to California
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WestJet
  • WestJet
  • 24/3
  • 1 total stop
  • 9h 46m total
  • Ontario to California
Search Deals
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 21 January 2025.

Tue 28/111:25 a.m.YYZ - LAS
Nonstop5h 03mPorter Airlines
Fri 31/110:35 p.m.LAS - YYZ
Nonstop4h 20mPorter Airlines
Deal found 21/1C$ 225
Tue 4/22:00 p.m.YTZ - LAS
1 stop9h 25mPorter Airlines
Fri 7/29:10 a.m.LAS - YTZ
1 stop6h 43mPorter Airlines
Deal found 20/1C$ 226
Tue 28/18:15 p.m.YYZ - LAS
Nonstop5h 03mAir Canada
Tue 4/211:35 a.m.LAS - YYZ
Nonstop4h 21mAir Canada
Deal found 20/1C$ 227
Mon 17/28:00 p.m.YYZ - LAS
Nonstop5h 13mWestJet
Mon 3/311:25 p.m.LAS - YYZ
Nonstop4h 20mWestJet
Deal found 21/1C$ 230
Mon 17/22:00 p.m.YYZ - LAS
1 stop9h 40mMultiple Airlines
Thu 20/28:40 a.m.LAS - YYZ
1 stop9h 31mMultiple Airlines
Deal found 20/1C$ 243
Tue 11/33:25 p.m.YTZ - LAS
1 stop9h 28mAir Canada
Wed 12/311:50 p.m.LAS - YTZ
2 stops17h 53mAir Canada
Deal found 21/1C$ 248
Fri 31/18:00 a.m.YYZ - LAS
1 stop9h 18mUnited Airlines
Fri 31/16:00 p.m.LAS - YYZ
1 stop9h 36mUnited Airlines
Deal found 21/1C$ 272
Wed 19/28:00 p.m.YYZ - SAN
1 stop16h 01mMultiple Airlines
Wed 26/23:00 p.m.SAN - YYZ
1 stop12h 43mMultiple Airlines
Deal found 20/1C$ 282
Fri 21/22:35 p.m.YUL - LAS
1 stop9h 53mPorter Airlines
Mon 24/210:35 p.m.LAS - YUL
1 stop7h 25mPorter Airlines
Deal found 21/1C$ 299
Wed 12/26:10 p.m.YOW - LAS
Nonstop5h 30mPorter Airlines
Wed 19/29:10 a.m.LAS - YOW
Nonstop4h 35mPorter Airlines
Deal found 20/1C$ 312
Sun 1/67:00 a.m.YUL - LAS
2 stops15h 38mWestJet
Wed 4/611:30 a.m.LAS - YUL
1 stop10h 13mWestJet
Deal found 21/1C$ 312
Fri 7/28:00 p.m.YYZ - LAX
1 stop14h 38mMultiple Airlines
Mon 10/29:32 p.m.LAX - YYZ
2 stops20h 39mMultiple Airlines
Deal found 19/1C$ 314

Find flights from Ontario to California within your budget

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 21 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Fri 20/6

9:00 a.m.-9:30 p.m.

2 stops15h 30m

Las Vegas Harry Reid Intl

Tue 24/6

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

2 stops13h 26m

C$ 225

TorontoLas Vegas

YTZ - LAS

YTZLAS

Toronto Island

Sun 16/2

1:50 p.m.-8:40 p.m.

1 stop9h 50m

Las Vegas Harry Reid Intl

Wed 19/2

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

1 stop6h 43m

C$ 227

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Fri 7/2

2:00 p.m.-8:40 p.m.

1 stop9h 40m

Las Vegas Harry Reid Intl

Sun 9/2

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

Nonstop4h 20m

C$ 229

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Wed 5/2

11:25 a.m.-1:28 p.m.

Nonstop5h 03m

Las Vegas Harry Reid Intl

Thu 6/2

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

Nonstop4h 18m

C$ 243

TorontoLas Vegas

YTZ - LAS

YTZLAS

Toronto Island

Tue 11/3

3:25 p.m.-9:53 p.m.

1 stop9h 28m

Las Vegas Harry Reid Intl

Wed 12/3

11:50 p.m.-8:43 p.m.

2 stops17h 53m

C$ 248

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Tue 4/2

6:55 p.m.-11:59 p.m.

1 stop8h 04m

Las Vegas Harry Reid Intl

Thu 6/2

7:45 a.m.-9:20 p.m.

1 stop10h 35m

C$ 258

TorontoSan Diego

YYZ - SAN

YYZSAN

Toronto Pearson Intl

Wed 19/2

8:00 p.m.-9:01 a.m.

1 stop16h 01m

San Diego

Wed 26/2

3:00 p.m.-6:43 a.m.

1 stop12h 43m

C$ 282

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sun 23/2

6:55 p.m.-12:06 a.m.

1 stop8h 11m

Las Vegas Harry Reid Intl

Wed 26/2

8:34 p.m.-6:36 a.m.

1 stop7h 02m

C$ 285

MontrealLas Vegas

YUL - LAS

YULLAS

Montreal Pierre Elliott Trudeau Intl

Mon 5/5

6:45 a.m.-5:35 p.m.

2 stops13h 50m

Las Vegas Harry Reid Intl

Fri 9/5

10:00 a.m.-12:43 a.m.

2 stops11h 43m

C$ 308

OttawaLas Vegas

YOW - LAS

YOWLAS

Ottawa

Wed 12/2

6:10 p.m.-8:40 p.m.

Nonstop5h 30m

Las Vegas Harry Reid Intl

Wed 19/2

9:10 a.m.-4:45 p.m.

Nonstop4h 35m

C$ 312

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/1

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.

Travel insights for flights from Ontario to California

Get recent, data-driven insights about flights from Ontario to California including ideal travel times, pricing trends, and more.

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$ 234). 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 21 January 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 21 January 2025.

The most flights from CAON to USCA are scheduled on a Tuesday (17 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (10 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 21 January 2025.
Get a feel of what it's like to fly with WestJet, United 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.
Delta
8.0
Very good
8,521 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 10

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

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 10

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

Alaska Airlines
8.0
Very good
9,706 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 10

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

Porter Airlines
7.9
Good
277 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 10

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
8,521 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 10

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

Copa Airlines
7.7
Good
1,662 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Comfort

8.0

Boarding

8.2

Crew

8.6

Entertainment

7.9

Overall

8.0

Food

7.3

Reviews

1 / 10

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?

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as C$ 150. Users have also found prices from C$ 151 and C$ 157 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$ 234). 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

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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 10 airlines flying from Ontario to California

Discover the top 10 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 21 January 2025.
AirlineCheapestAverageFlexibilityOn-time
Lynx AirCheapestC$ 179AverageC$ 337FlexibilityNo cancel feeOn-timeN/A
Search Lynx Air flights
United AirlinesCheapestC$ 208AverageC$ 793FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 219AverageC$ 699FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 231AverageC$ 568FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 245AverageC$ 575FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
DeltaCheapestC$ 260AverageC$ 608FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air TransatCheapestC$ 295AverageC$ 512FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
American AirlinesCheapestC$ 298AverageC$ 660FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Alaska AirlinesCheapestC$ 417AverageC$ 787FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
WestJet EncoreCheapestC$ 558AverageC$ 822FlexibilityNo 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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