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Cheap flights from Ontario to California from C$ 213

YYZ — LAX
12 Oct — 19 Oct1
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

Mon 19/108:35 p.m. -
Nonstop4h 47m
Fri 23/1011:20 p.m. -
Nonstop4h 19m
Deal found 11/9C$ 341
Mon 19/109:00 a.m. -
1 stop9h 30m
Fri 23/101:20 p.m. -
1 stop8h 45m
Deal found 11/9C$ 344
Fri 25/98:35 p.m. -
Nonstop4h 47m
Fri 2/108:30 a.m. -
2 stops11h 55m
Deal found 11/9C$ 363
Wed 21/1010:50 a.m. -
1 stop9h 25m
Mon 26/108:05 p.m. -
2 stops15h 00m
Deal found 10/9C$ 364
Fri 23/108:35 p.m. -
Nonstop4h 47m
Tue 27/107:45 a.m. -
1 stop9h 35m
Deal found 11/9C$ 366
Sat 24/101:50 p.m. -
Nonstop4h 47m
Tue 27/107:45 a.m. -
1 stop9h 35m
Deal found 11/9C$ 367
Tue 17/112:15 p.m. -
1 stop9h 30m
Thu 26/114:45 p.m. -
1 stop9h 15m
Deal found 11/9C$ 369
Tue 17/1110:30 a.m. -
1 stop9h 34m
Tue 17/117:30 p.m. -
1 stop9h 00m
Deal found 10/9C$ 370
Fri 16/1012:40 p.m. -
2 stops12h 00m
Mon 19/107:20 p.m. -
1 stop21h 35m
Deal found 9/9C$ 371
Thu 15/1012:40 p.m. -
1 stop8h 50m
Fri 23/1011:20 p.m. -
Nonstop4h 19m
Deal found 11/9C$ 373
Tue 27/1012:30 p.m. -
2 stops13h 01m
Wed 28/106:00 a.m. -
1 stop7h 42m
Deal found 9/9C$ 398
Thu 24/910:05 a.m. -
Nonstop5h 29m
Sun 27/912:05 a.m. -
Nonstop4h 55m
Deal found 9/9C$ 400

Find flight deals from Ontario to California

Round-trip from

C$ 363

One-way from

C$ 213

Popular in

August

Cheapest in

January

Average price

C$ 522

Good round-trip deal

C$ 506 or less

Good one-way deal

C$ 339 or less
WestJet
  • WestJet
  • 25/9-2/10
  • 2 total stops
  • 16h 42m total
  • Ontario to California
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WestJet
  • WestJet
  • 26/11-31/12
  • 2 total stops
  • 12h 10m total
  • Ontario to California
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 84 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 18 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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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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Cheapflights Fare Finder

 
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 Toronto Pearson Intl - LAS Las Vegas Harry Reid Intl

YYZLAS

Toronto Pearson Intl

Sun 15/11

5:25 p.m.-11:31 p.m.

1 stop9h 06m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 233

TorontoLas Vegas

YYZ Toronto Pearson Intl - LAS Las Vegas Harry Reid Intl

YYZLAS

Toronto Pearson Intl

Sat 14/11

8:35 a.m.-4:03 p.m.

2 stops10h 28m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 234

MontrealLas Vegas

YUL Montreal Pierre Elliott Trudeau Intl - LAS Las Vegas Harry Reid Intl

YULLAS

Montreal Pierre Elliott Trudeau Intl

Sat 5/12

5:25 p.m.-10:37 p.m.

1 stop8h 12m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 247

TorontoLas Vegas

YYZ Toronto Pearson Intl - LAS Las Vegas Harry Reid Intl

YYZLAS

Toronto Pearson Intl

Wed 14/10

10:45 a.m.-8:11 p.m.

1 stop12h 26m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 255

TorontoLas Vegas

YYZ Toronto Pearson Intl - LAS Las Vegas Harry Reid Intl

YYZLAS

Toronto Pearson Intl

Tue 29/9

1:34 p.m.-6:13 p.m.

1 stop7h 39m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 255

TorontoLas Vegas

YYZ Toronto Pearson Intl - LAS Las Vegas Harry Reid Intl

YYZLAS

Toronto Pearson Intl

Wed 14/10

11:38 a.m.-7:52 p.m.

1 stop11h 14m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 255

TorontoLas Vegas

YYZ Toronto Pearson Intl - LAS Las Vegas Harry Reid Intl

YYZLAS

Toronto Pearson Intl

Fri 25/9

11:00 a.m.-3:32 p.m.

1 stop7h 32m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 260

TorontoLas Vegas

YYZ Toronto Pearson Intl - LAS Las Vegas Harry Reid Intl

YYZLAS

Toronto Pearson Intl

Sat 26/9

9:44 a.m.-2:54 p.m.

1 stop8h 10m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 262

TorontoLas Vegas

YYZ Toronto Pearson Intl - LAS Las Vegas Harry Reid Intl

YYZLAS

Toronto Pearson Intl

Fri 25/9

1:34 p.m.-9:29 p.m.

1 stop10h 55m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 262

TorontoLas Vegas

YYZ Toronto Pearson Intl - LAS Las Vegas Harry Reid Intl

YYZLAS

Toronto Pearson Intl

Sun 27/9

7:30 a.m.-12:46 p.m.

1 stop8h 16m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 262

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

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

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, January is the cheapest month in which you can book a flight from Region of Ontario to California (average of C$ 492). Flying from Region of Ontario to California in August is currently the most expensive (average of C$ 690). 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?

It’s optimal to fly from Region of Ontario to California in the morning. By choosing this option you can save up to 56% on the cost of your flight, compared to a flight in the evening.

Weekly flight availability from Region of Ontario to California

The most flights from CAON to USCA are scheduled on a Friday (27 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).

How much does it cost to fly round-trip from Region of Ontario to California?

Airfare is typical for this route at the moment.
Region of Ontario to California flights typically cost between C$ 425 and C$ 635 in October.
The cheapest round-trip price found within the last 5 days was C$ 431 on WestJet (26 Oct-30 Oct).

How far ahead should I book a flight from Region of Ontario to California?

To ensure you get the cheapest price possible for a flight from Region of Ontario to California, you should look to book at least 68 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest day to fly from Region of Ontario to California?

Travelers seeking maximum savings on their Region of Ontario to California flight should consider departing on Sunday evenings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing California

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
460 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.6

Entertainment

6.9

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
Porter Airlines
8.0
Very good
460 reviews
Porter Airlines
8.0
Very good
460 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.6

Entertainment

6.9

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
Air Transat
7.7
Good
579 reviews
Porter Airlines
8.0
Very good
460 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.6

Entertainment

6.9

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
United Airlines
7.4
Good
10,206 reviews
Porter Airlines
8.0
Very good
460 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.6

Entertainment

6.9

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
WestJet
7.2
Good
3,445 reviews
Porter Airlines
8.0
Very good
460 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.6

Entertainment

6.9

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
Air Canada
7.1
Good
11,617 reviews
Porter Airlines
8.0
Very good
460 reviews
Check prices

Boarding

8.2

Overall

8.0

Crew

8.6

Food

7.6

Entertainment

6.9

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

D,Sep 2026

YHM - YVR

The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.

Related info for your journey

  • How long is the flight from Region of Ontario to California?

    United Airlines, Delta, and Porter Airlines can get you from Region of Ontario to California in just under 9h. Your travel time can differ by up to 1h 43m. The distance between Region of Ontario and California is about 4073 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$ 127. Users have also found prices from C$ 164 and C$ 177 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, January is the cheapest month in which you can book a flight from Region of Ontario to California (average of C$ 492). Flying from Region of Ontario to California in August is currently the most expensive (average of C$ 690). 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

Alternative routes for Ontario to California

Toronto Island to Newark flights
Pearson Intl to Newark flights
Pearson Intl to John F Kennedy Intl flights
Pierre Elliott Trudeau Intl to LaGuardia flights
Vancouver Intl to Los Angeles flights
Pierre Elliott Trudeau Intl to Fort Lauderdale flights
Pearson Intl to LaGuardia flights
Pearson Intl to Fort Lauderdale flights
Pearson Intl to Las Vegas flights
Toronto Island to LaGuardia flights
Pierre Elliott Trudeau Intl to Miami flights
Pierre Elliott Trudeau Intl to Newark flights
Pearson Intl to Dallas/Fort Worth flights
Toronto Island to John F Kennedy Intl flights
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Vancouver Intl to Las Vegas flights
Pierre Elliott Trudeau Intl to John F Kennedy Intl flights
Pearson Intl to Miami flights
Vancouver Intl to San Francisco flights
Pearson Intl to San Francisco flights
Vancouver Intl to Newark flights
Hamilton to Newark flights
Pearson Intl to Reagan-National flights
Toronto Island to Fort Lauderdale flights
Vancouver Intl to John F Kennedy Intl flights
Vancouver Intl to Ontario flights
Pierre Elliott Trudeau Intl to Los Angeles flights
Pearson Intl to O'Hare Intl flights
Toronto Island to Orlando flights
Pearson Intl to Seattle flights
Pierre Elliott Trudeau Intl to Dallas/Fort Worth flights
Pearson Intl to Dulles Intl flights
Pierre Elliott Trudeau Intl to Orlando flights
Pearson Intl to Hobby flights
Toronto Island to O'Hare Intl flights
Calgary to Las Vegas flights
Toronto Island to Boston flights
Vancouver Intl to Honolulu flights
Pearson Intl to George Bush Intcntl flights
Ottawa to Fort Lauderdale flights
Vancouver Intl to O'Hare Intl flights
Pearson Intl to Sky Harbor Intl flights
Abbotsford to Los Angeles flights
Pierre Elliott Trudeau Intl to Boston flights
Pearson Intl to Tampa flights
Pierre Elliott Trudeau Intl to O'Hare Intl flights
Vancouver Intl to LaGuardia flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Vancouver Intl to Miami flights

Top 9 airlines flying from Ontario to California

AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 181AverageC$ 696FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 206AverageC$ 518FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 215AverageC$ 659FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapestC$ 238AverageC$ 576FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Porter AirlinesCheapestC$ 274AverageC$ 544FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Alaska AirlinesCheapestC$ 292AverageC$ 399FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Air TransatCheapestC$ 297AverageC$ 607FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
American AirlinesCheapestC$ 303AverageC$ 617FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
JazzCheapestC$ 929AverageC$ 984FlexibilityNo cancel feeOn-timeN/A
Search Jazz flights

Fly with Cheapflights

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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