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Cheap flights from Ontario to California from C$ 155

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
14 Apr — 21 Apr1
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 15 March 2026.

Fri 10/48:00 p.m.
YYZ
-
LAS
Nonstop5h 12m
WestJet
Mon 13/411:25 p.m.
LAS
-
YYZ
Nonstop4h 18m
WestJet
Deal found 13/3C$ 232
Wed 22/41:35 p.m.
YYZ
-
LAS
2 stops10h 58m
WestJet
Fri 24/412:15 p.m.
LAS
-
YYZ
1 stop8h 23m
WestJet
Deal found 11/3C$ 243
Mon 20/412:30 p.m.
YYZ
-
LAS
1 stop10h 46m
WestJet
Fri 24/412:15 p.m.
LAS
-
YYZ
1 stop8h 23m
WestJet
Deal found 11/3C$ 246
Mon 20/48:00 p.m.
YYZ
-
LAS
Nonstop5h 12m
WestJet
Thu 23/48:05 a.m.
LAS
-
YYZ
1 stop8h 31m
WestJet
Deal found 11/3C$ 248
Wed 22/411:00 a.m.
YYZ
-
LAS
1 stop10h 13m
WestJet
Tue 28/412:35 p.m.
LAS
-
YYZ
Nonstop4h 25m
WestJet
Deal found 12/3C$ 250
Mon 13/412:30 p.m.
YYZ
-
LAS
1 stop10h 46m
WestJet
Mon 20/411:25 p.m.
LAS
-
YYZ
Nonstop4h 18m
WestJet
Deal found 12/3C$ 251
Wed 22/49:40 a.m.
YYZ
-
LAS
2 stops11h 33m
WestJet
Wed 29/41:45 p.m.
LAS
-
YYZ
2 stops12h 25m
WestJet
Deal found 11/3C$ 254
Sat 16/55:30 p.m.
YTZ
-
LAS
1 stop8h 00m
Air Canada
Tue 26/511:25 p.m.
LAS
-
YTZ
1 stop9h 27m
Air Canada
Deal found 12/3C$ 320
Sat 2/54:30 p.m.
YTZ
-
LAS
1 stop9h 00m
Air Canada
Wed 13/511:25 p.m.
LAS
-
YTZ
2 stops10h 52m
Air Canada
Deal found 11/3C$ 342
Mon 20/41:30 p.m.
YYZ
-
LAX
1 stop11h 33m
WestJet
Sat 25/47:00 a.m.
LAX
-
YYZ
1 stop9h 36m
WestJet
Deal found 10/3C$ 355
Fri 17/410:00 a.m.
YYZ
-
LAX
1 stop11h 30m
WestJet
Tue 21/47:00 a.m.
LAX
-
YYZ
1 stop8h 26m
WestJet
Deal found 11/3C$ 357
Sat 18/410:00 a.m.
YYZ
-
LAX
1 stop9h 58m
WestJet
Thu 23/47:00 a.m.
LAX
-
YYZ
1 stop9h 36m
WestJet
Deal found 12/3C$ 365

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 15 March 2026.

Round-trip from

C$ 232

One-way from

C$ 155

Popular in

March

Cheapest in

September

Average price

C$ 557

Good round-trip deal

C$ 482 or less

Good one-way deal

C$ 275 or less
WestJet
  • WestJet
  • 10/4-13/4
  • Nonstop
  • 9h 30m total
  • Ontario to California
Search Deals
WestJet
  • WestJet
  • 22/4
  • 2 total stops
  • 10h 58m total
  • Ontario to California
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 81 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 15 March 2026.
Use the filters below to find and compare flights from Ontario to California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Fri 1/5

12:45 p.m.-10:13 p.m.

1 stop12h 28m

Las Vegas Harry Reid Intl

Mon 4/5

11:52 p.m.-11:43 a.m.

1 stop8h 51m

C$ 342

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Fri 17/4

2:30 p.m.-10:13 p.m.

1 stop10h 43m

Las Vegas Harry Reid Intl

Tue 21/4

10:50 a.m.-11:59 p.m.

2 stops10h 09m

C$ 350

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Thu 7/5

9:35 a.m.-10:13 p.m.

1 stop15h 38m

Las Vegas Harry Reid Intl

Sun 10/5

11:59 p.m.-5:56 p.m.

1 stop14h 57m

C$ 353

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Mon 25/5

10:15 a.m.-9:54 p.m.

1 stop14h 39m

Las Vegas Harry Reid Intl

Fri 29/5

12:36 a.m.-9:54 a.m.

1 stop6h 18m

C$ 353

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Tue 7/4

5:20 p.m.-10:04 p.m.

1 stop7h 44m

Las Vegas Harry Reid Intl

Mon 13/4

12:36 a.m.-3:46 p.m.

2 stops12h 10m

C$ 354

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Tue 7/4

5:20 p.m.-10:04 p.m.

1 stop7h 44m

Las Vegas Harry Reid Intl

Sat 18/4

5:30 a.m.-3:14 p.m.

1 stop6h 44m

C$ 365

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Tue 19/5

2:45 p.m.-10:04 p.m.

1 stop10h 19m

Las Vegas Harry Reid Intl

Mon 25/5

7:03 p.m.-9:54 a.m.

1 stop11h 51m

C$ 370

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Tue 28/4

8:50 a.m.-5:23 p.m.

2 stops11h 33m

Las Vegas Harry Reid Intl

Mon 4/5

11:59 p.m.-9:54 a.m.

1 stop6h 55m

C$ 370

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Fri 10/4

4:18 p.m.-9:58 p.m.

1 stop8h 40m

Las Vegas Harry Reid Intl

Mon 13/4

4:57 p.m.-9:54 a.m.

2 stops13h 57m

C$ 381

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Wed 15/4

6:15 a.m.-3:24 p.m.

1 stop12h 09m

Las Vegas Harry Reid Intl

Sat 18/4

12:40 a.m.-11:31 a.m.

1 stop7h 51m

C$ 384

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/3

Showing 1-10 of 60 resultsSorted by cheapest first
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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, July is the cheapest month in which you can book a flight from Region of Ontario to California (average of C$ 132). Flying from Region of Ontario to California in March is currently the most expensive (average of C$ 251). 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 15 March 2026.

It’s optimal to fly from Region of Ontario to California in the morning. By choosing this option you can save up to 48% on the cost of your flight, compared to a flight in the evening.

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 14 March 2026.

Travelers seeking maximum savings on their Region of Ontario to California flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday 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 15 March 2026.

The most flights from CAON to USCA are scheduled on a Tuesday (19 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (16 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 15 March 2026.
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
423 reviews
Check prices

Overall

8.0

Comfort

8.0

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Porter Airlines
8.0
Very good
423 reviews
Porter Airlines
8.0
Very good
423 reviews
Check prices

Overall

8.0

Comfort

8.0

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Transat
7.7
Good
521 reviews
Porter Airlines
8.0
Very good
423 reviews
Check prices

Overall

8.0

Comfort

8.0

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
United Airlines
7.4
Good
9,428 reviews
Porter Airlines
8.0
Very good
423 reviews
Check prices

Overall

8.0

Comfort

8.0

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
WestJet
7.2
Good
3,295 reviews
Porter Airlines
8.0
Very good
423 reviews
Check prices

Overall

8.0

Comfort

8.0

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.
Air Canada
7.1
Good
10,801 reviews
Porter Airlines
8.0
Very good
423 reviews
Check prices

Overall

8.0

Comfort

8.0

Food

7.6

Entertainment

7.0

Boarding

8.2

Crew

8.6

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

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?

    United Airlines, American Airlines, and WestJet can get you from Region of Ontario to California in just under 10h. Your travel time can differ by up to 12h 45m. The distance between Region of Ontario and California is about 3592 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$ 134. Users have also found prices from C$ 141 and C$ 175 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, July is the cheapest month in which you can book a flight from Region of Ontario to California (average of C$ 132). Flying from Region of Ontario to California in March is currently the most expensive (average of C$ 251). 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 15 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Flair AirlinesCheapestC$ 115AverageC$ 470FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
American AirlinesCheapestC$ 131AverageC$ 581FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapestC$ 179AverageC$ 597FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 189AverageC$ 426FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 194AverageC$ 441FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
DeltaCheapestC$ 227AverageC$ 489FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air TransatCheapestC$ 235AverageC$ 509FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapestC$ 255AverageC$ 617FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapestC$ 289AverageC$ 493FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
APG AirlinesCheapestC$ 605AverageC$ 607FlexibilityNo 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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