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

For one-way options, check prices for Porter Airlines. According to our data, you can fly for as low as C$ 130. Users have also found prices from C$ 132 and C$ 133 on Air Canada and Air Transat, respectively.

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

Travellers have found it’s best to book a flight 58 days in advance to save up to 79% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 58 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Region of Ontario to California 1-2 weeks in advance for as low as C$ 495, or C$ 826 for flights within the next 24 hours.

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

September is one of the best times of the year to fly to California from Region of Ontario. Prices for September average C$ 444 per person but you can even find prices for as low as C$ 214. The most expensive prices can be found in the month of December. Opting for a September flight can save you 37% on your journey compared to booking in December

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.

C$ 130+ Flights from Ontario to California

Cheap flight deals from Ontario to California

Round-trip from	C$ 186
One-way from	C$ 130
Popular in	December
Cheapest in	September
Average price	C$ 513
Good round-trip deal	C$ 298 or less
Good one-way deal	C$ 207 or less

Porter Airlines
20/4-24/4
Nonstop
9h 23m total
Ontario to California

Search Deals

Porter Airlines
30/4
1 total stop
9h 40m total
Ontario to California

Search Deals

Highest demand for flights based on searches. 7% potential increase in price (C$ 48 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (C$ 23 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 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

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 28 March 2025.

Sun 20/47:25 p.m.YYZ - LAS

Nonstop5h 03mPorter Airlines

Thu 24/410:35 p.m.LAS - YYZ

Nonstop4h 20mPorter Airlines

Deal found 27/3C$ 186

Mon 7/47:25 p.m.YYZ - LAS

Nonstop5h 03mMultiple Airlines

Wed 9/411:25 p.m.LAS - YYZ

Nonstop4h 18mMultiple Airlines

Deal found 26/3C$ 187

Sun 20/47:25 p.m.YYZ - LAS

Nonstop5h 03mAir Transat

Wed 23/410:35 p.m.LAS - YYZ

Nonstop4h 20mAir Transat

Deal found 28/3C$ 193

Mon 14/44:10 p.m.YTZ - LAS

1 stop7h 30mPorter Airlines

Fri 18/49:10 a.m.LAS - YTZ

1 stop6h 43mPorter Airlines

Deal found 27/3C$ 196

Wed 9/47:30 a.m.YYZ - LAS

1 stop11h 20mAir Canada

Wed 16/41:00 p.m.LAS - YYZ

1 stop6h 48mAir Canada

Deal found 27/3C$ 206

Sat 12/46:30 a.m.YYZ - LAS

1 stop9h 47mWestJet

Wed 16/411:25 p.m.LAS - YYZ

Nonstop4h 18mWestJet

Deal found 27/3C$ 209

Fri 11/410:15 a.m.YYZ - LAS

1 stop15h 01mUnited Airlines

Sun 13/411:55 p.m.LAS - YYZ

1 stop11h 24mUnited Airlines

Deal found 28/3C$ 240

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 26/3C$ 252

Tue 29/42:00 p.m.YYZ - LAX

1 stop9h 23mWestJet

Tue 24/612:35 p.m.LAX - YYZ

1 stop9h 09mWestJet

Deal found 27/3C$ 274

Sat 19/47:25 p.m.YYZ - LAX

1 stop13h 50mMultiple Airlines

Thu 29/57:00 a.m.LAX - YYZ

1 stop8h 54mMultiple Airlines

Deal found 27/3C$ 277

Fri 2/55:20 p.m.YYZ - LAS

1 stop7h 39mBritish Airways

Wed 7/511:54 a.m.LAS - YYZ

1 stop8h 06mBritish Airways

Deal found 26/3C$ 280

Mon 21/46:10 p.m.YOW - LAS

Nonstop5h 30mPorter Airlines

Wed 30/49:10 a.m.LAS - YOW

Nonstop4h 35mPorter Airlines

Deal found 27/3C$ 287

Best flights from Ontario to California
Discover carefully curated flight deals from Ontario to California that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 28 March 2025.

Sun 20/47:25 p.m.YYZ - LAS

Nonstop5h 03mPorter Airlines

Thu 24/410:35 p.m.LAS - YYZ

Nonstop4h 20mPorter Airlines

Deal found 27/3C$ 186

Mon 7/47:25 p.m.YYZ - LAS

Nonstop5h 03mMultiple Airlines

Wed 9/411:25 p.m.LAS - YYZ

Nonstop4h 18mMultiple Airlines

Deal found 26/3C$ 187

Sun 20/47:25 p.m.YYZ - LAS

Nonstop5h 03mAir Transat

Wed 23/410:35 p.m.LAS - YYZ

Nonstop4h 20mAir Transat

Deal found 28/3C$ 193

Wed 9/47:30 a.m.YYZ - LAS

1 stop11h 20mAir Canada

Wed 16/41:00 p.m.LAS - YYZ

1 stop6h 48mAir Canada

Deal found 27/3C$ 206

Sat 12/46:30 a.m.YYZ - LAS

1 stop9h 47mWestJet

Wed 16/411:25 p.m.LAS - YYZ

Nonstop4h 18mWestJet

Deal found 27/3C$ 209

Fri 11/410:15 a.m.YYZ - LAS

1 stop15h 01mUnited Airlines

Sun 13/411:55 p.m.LAS - YYZ

1 stop11h 24mUnited Airlines

Deal found 28/3C$ 240

Fri 2/55:20 p.m.YYZ - LAS

1 stop7h 39mBritish Airways

Wed 7/511:54 a.m.LAS - YYZ

1 stop8h 06mBritish Airways

Deal found 26/3C$ 280

Sat 10/510:35 a.m.YYZ - LAS

2 stops12h 09mAmerican Airlines

Sat 17/512:59 a.m.LAS - YYZ

1 stop12h 26mAmerican Airlines

Deal found 27/3C$ 300

Tue 3/611:38 a.m.YYZ - SAN

1 stop9h 24mDelta

Tue 10/66:15 a.m.SAN - YYZ

1 stop7h 25mDelta

Deal found 26/3C$ 380

Mon 14/44:10 p.m.YTZ - LAS

1 stop7h 30mPorter Airlines

Fri 18/49:10 a.m.LAS - YTZ

1 stop6h 43mPorter Airlines

Deal found 27/3C$ 196

Wed 9/44:45 p.m.YYZ - SAN

2 stops10h 14mAlaska Airlines

Wed 23/47:55 p.m.SAN - YYZ

1 stop16h 05mAlaska Airlines

Deal found 27/3C$ 480

Mon 7/43:25 p.m.YTZ - LAS

1 stop9h 12mAir Canada

Fri 11/47:00 a.m.LAS - YTZ

1 stop7h 50mAir Canada

Deal found 26/3C$ 263

Direct flights from Ontario to California
Explore direct flight options from Ontario to California based on user searches, and compare prices and availability for your desired travel dates. Data last updated 28 March 2025.

Sun 20/47:25 p.m.YYZ - LAS

Nonstop5h 03mPorter Airlines

Thu 24/410:35 p.m.LAS - YYZ

Nonstop4h 20mPorter Airlines

Deal found 27/3C$ 186

Mon 7/47:25 p.m.YYZ - LAS

Nonstop5h 03mMultiple Airlines

Wed 9/411:25 p.m.LAS - YYZ

Nonstop4h 18mMultiple Airlines

Deal found 26/3C$ 187

Sun 20/47:25 p.m.YYZ - LAS

Nonstop5h 03mAir Transat

Wed 23/410:35 p.m.LAS - YYZ

Nonstop4h 20mAir Transat

Deal found 28/3C$ 193

Thu 10/48:10 p.m.YYZ - LAS

Nonstop4h 45mAir Canada

Tue 9/911:30 p.m.LAS - YYZ

Nonstop4h 20mAir Canada

Deal found 27/3C$ 227

Mon 21/48:00 p.m.YYZ - LAS

Nonstop5h 13mWestJet

Fri 25/411:25 p.m.LAS - YYZ

Nonstop4h 18mWestJet

Deal found 27/3C$ 247

Mon 21/49:45 a.m.YYZ - LAX

Nonstop5h 35mMultiple Airlines

Sun 6/711:10 p.m.LAX - YYZ

Nonstop4h 50mMultiple Airlines

Deal found 27/3C$ 274

Sun 18/57:45 p.m.YYZ - LAX

Nonstop5h 25mWestJet

Tue 27/511:10 p.m.LAX - YYZ

Nonstop4h 50mWestJet

Deal found 28/3C$ 280

Mon 21/46:10 p.m.YOW - LAS

Nonstop5h 30mPorter Airlines

Wed 30/49:10 a.m.LAS - YOW

Nonstop4h 35mPorter Airlines

Deal found 27/3C$ 287

Fri 12/99:45 a.m.YYZ - LAX

Nonstop5h 20mAir Transat

Sun 14/91:05 p.m.LAX - YYZ

Nonstop4h 53mAir Transat

Deal found 27/3C$ 290

Fri 25/45:30 p.m.YYZ - LAX

Nonstop5h 35mPorter Airlines

Mon 28/47:35 a.m.LAX - YYZ

Nonstop4h 48mPorter Airlines

Deal found 27/3C$ 297

Sat 3/54:30 p.m.YYZ - LAX

Nonstop5h 24mAir Canada

Sat 3/59:55 p.m.LAX - YYZ

Nonstop4h 51mAir Canada

Deal found 27/3C$ 299

Fri 9/59:05 a.m.YOW - LAS

Nonstop5h 20mAir Transat

Sun 11/512:20 p.m.LAS - YOW

Nonstop4h 35mAir Transat

Deal found 27/3C$ 309

Last-minute flights from Ontario to California
Discover last-minute flight deals from Ontario to California. Data last updated 28 March 2025 and is based on user searches.

Wed 2/44:10 p.m.YTZ - LAS

1 stop7h 30mPorter Airlines

Wed 9/49:10 a.m.LAS - YTZ

1 stop6h 43mPorter Airlines

Deal found 26/3C$ 212

Wed 2/48:10 p.m.YYZ - LAS

Nonstop4h 57mAir Canada

Wed 9/46:01 a.m.LAS - YYZ

1 stop6h 10mAir Canada

Deal found 26/3C$ 229

Wed 2/48:00 a.m.YYZ - LAS

2 stops12h 14mUnited Airlines

Wed 9/46:00 a.m.LAS - YYZ

1 stop7h 14mUnited Airlines

Deal found 26/3C$ 257

Fri 4/46:45 a.m.YUL - LAX

1 stop8h 35mMultiple Airlines

Fri 2/56:05 p.m.LAX - YUL

1 stop27h 38mMultiple Airlines

Deal found 27/3C$ 372

Sat 5/47:25 p.m.YYZ - LAS

Nonstop5h 03mAir Transat

Sun 6/410:35 p.m.LAS - YYZ

Nonstop4h 20mAir Transat

Deal found 27/3C$ 337

Sun 6/47:25 p.m.YYZ - LAS

Nonstop5h 03mPorter Airlines

Thu 10/410:35 p.m.LAS - YYZ

Nonstop4h 20mPorter Airlines

Deal found 27/3C$ 223

Sun 6/47:25 p.m.YYZ - SAN

1 stop15h 16mMultiple Airlines

Wed 16/46:15 a.m.SAN - YYZ

1 stop21h 28mMultiple Airlines

Deal found 27/3C$ 292

Mon 7/47:25 p.m.YYZ - LAS

Nonstop5h 03mMultiple Airlines

Wed 9/411:25 p.m.LAS - YYZ

Nonstop4h 18mMultiple Airlines

Deal found 26/3C$ 187

Mon 7/43:25 p.m.YTZ - LAS

1 stop9h 12mAir Canada

Fri 11/47:00 a.m.LAS - YTZ

1 stop7h 50mAir Canada

Deal found 26/3C$ 263

Mon 7/410:35 p.m.YYZ - LAS

1 stop25h 19mWestJet

Fri 11/48:40 a.m.LAS - YYZ

2 stops11h 50mWestJet

Deal found 26/3C$ 264

Mon 7/47:25 p.m.YYZ - LAX

1 stop19h 48mMultiple Airlines

Thu 1/511:40 a.m.LAX - YYZ

1 stop9h 44mMultiple Airlines

Deal found 26/3C$ 303

Mon 7/47:25 p.m.YYZ - ONT

1 stop22h 39mMultiple Airlines

Thu 10/43:02 p.m.ONT - YYZ

1 stop11h 53mMultiple Airlines

Deal found 27/3C$ 336

One-way flights from Ontario to California
Search for one-way flight options from Ontario to California. Find affordable one-way fares based on user searches. Data last updated 28 March 2025.

Wed 30/42:00 p.m.YYZ - LAS

1 stop9h 40mPorter Airlines

Deal found 27/3C$ 130

Sun 27/48:10 p.m.YYZ - LAS

Nonstop4h 45mAir Canada

Deal found 27/3C$ 132

Tue 22/45:50 p.m.YYZ - LAS

Nonstop5h 03mAir Transat

Deal found 27/3C$ 133

Fri 9/57:00 a.m.YTZ - LAS

1 stop7h 25mPorter Airlines

Deal found 27/3C$ 143

Sat 3/512:00 p.m.YYZ - LAS

2 stops12h 30mWestJet

Deal found 27/3C$ 150

Tue 15/43:25 p.m.YTZ - LAS

1 stop9h 12mAir Canada

Deal found 27/3C$ 152

Tue 1/412:45 p.m.YYZ - LAS

1 stop8h 22mUnited Airlines

Deal found 27/3C$ 159

Sun 13/46:10 p.m.YOW - LAS

Nonstop5h 30mPorter Airlines

Deal found 27/3C$ 176

Tue 29/49:00 a.m.YYZ - LAX

2 stops12h 10mWestJet

Deal found 27/3C$ 180

Wed 9/47:25 p.m.YYZ - LAX

1 stop26h 34mMultiple Airlines

Deal found 27/3C$ 182

Sat 3/510:45 a.m.YYZ - LAX

2 stops11h 44mUnited Airlines

Deal found 27/3C$ 184

Mon 26/512:20 p.m.YOW - LAS

2 stops12h 10mWestJet

Deal found 26/3C$ 189

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

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sun 20/4

7:25 p.m.-9:28 p.m.

Nonstop5h 03m

Las Vegas Harry Reid Intl

Thu 24/4

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

Nonstop4h 20m

C$ 186

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Mon 7/4

7:25 p.m.-9:28 p.m.

Nonstop5h 03m

Las Vegas Harry Reid Intl

Wed 9/4

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

Nonstop4h 18m

C$ 187

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sun 20/4

7:25 p.m.-9:28 p.m.

Nonstop5h 03m

Las Vegas Harry Reid Intl

Wed 23/4

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

Nonstop4h 20m

C$ 193

TorontoLas Vegas

YTZ - LAS

YTZLAS

Toronto Island

Mon 14/4

4:10 p.m.-8:40 p.m.

1 stop7h 30m

Las Vegas Harry Reid Intl

Fri 18/4

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

1 stop6h 43m

C$ 196

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Wed 9/4

7:30 a.m.-3:50 p.m.

1 stop11h 20m

Las Vegas Harry Reid Intl

Wed 16/4

1:00 p.m.-10:48 p.m.

1 stop6h 48m

C$ 206

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Sat 12/4

6:30 a.m.-1:17 p.m.

1 stop9h 47m

Las Vegas Harry Reid Intl

Wed 16/4

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

Nonstop4h 18m

C$ 209

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Fri 11/4

2:00 p.m.-6:33 p.m.

1 stop7h 33m

Las Vegas Harry Reid Intl

Mon 14/4

12:59 a.m.-11:30 a.m.

1 stop7h 31m

C$ 240

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Tue 22/4

10:15 a.m.-5:14 p.m.

1 stop9h 59m

Las Vegas Harry Reid Intl

Tue 29/4

11:55 p.m.-10:04 a.m.

1 stop7h 09m

C$ 256

TorontoLas Vegas

YTZ - LAS

YTZLAS

Toronto Island

Mon 7/4

3:25 p.m.-9:37 p.m.

1 stop9h 12m

Las Vegas Harry Reid Intl

Fri 11/4

7:00 a.m.-5:50 p.m.

1 stop7h 50m

C$ 263

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Tue 29/4

2:00 p.m.-8:23 p.m.

1 stop9h 23m

Los Angeles

Tue 24/6

12:35 p.m.-12:44 a.m.

1 stop9h 09m

C$ 274

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/3

Showing 1-10 of 60 results

...

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$ 231). 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?

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.

Rainfall in California 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

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 a feel of what it's like to fly with Alaska Airlines, Delta and Porter Airlines 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.

Alaska Airlines

8.0

Very good

9,798 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Alaska Airlines

8.0

Very good

9,798 reviews

Alaska Airlines

8.0

Very good

9,798 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Delta

8.0

Very good

7,896 reviews

Alaska Airlines

8.0

Very good

9,798 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Porter Airlines

7.9

Good

276 reviews

Alaska Airlines

8.0

Very good

9,798 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Air Transat

7.8

Good

381 reviews

Alaska Airlines

8.0

Very good

9,798 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

United Airlines

7.4

Good

8,603 reviews

Alaska Airlines

8.0

Very good

9,798 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Related info for your journey

What are the cheapest airlines to fly from Region of Ontario to California one-way?
For one-way options, check prices for Porter Airlines. According to our data, you can fly for as low as C$ 130. Users have also found prices from C$ 132 and C$ 133 on Air Canada 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, September is the cheapest month in which you can book a flight from Region of Ontario to California (average of C$ 231). 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

Alternative routes for Ontario to California

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Complete your trip

California car rentals

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Direct flights to United States

Find a return flight route from California

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Top 9 airlines flying from Ontario to California

Airline	Cheapest	Average	Flexibility	On-time
WestJet	CheapestC$ 230	AverageC$ 525	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Porter Airlines	CheapestC$ 238	AverageC$ 548	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
American Airlines	CheapestC$ 238	AverageC$ 656	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Delta	CheapestC$ 256	AverageC$ 567	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
United Airlines	CheapestC$ 296	AverageC$ 708	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air Transat	CheapestC$ 298	AverageC$ 503	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights
Air Canada	CheapestC$ 314	AverageC$ 666	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Alaska Airlines	CheapestC$ 347	AverageC$ 753	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
WestJet Encore	CheapestC$ 666	AverageC$ 733	FlexibilityNo cancel fee	On-timeN/A	Search WestJet Encore flights

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Can Cheapflights notify me if prices for flights from Ontario to California become cheaper?

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Cheap flights from Ontario to California from C$ 130

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 30/4. Fares are subject to change and may not be available on all flights or dates of travel.

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 28 March 2025.

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Find flight deals from Ontario to California

Cheapest flights from Ontario to CaliforniaExplore 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 28 March 2025.

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 28 March 2025.

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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.

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?

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 28 March 2025.

Rainfall in California by month

Plan your trip to California by taking into account the average rainfall totals by month.

Temperature in California by month

Plan your trip to California by taking into account the average temperature totals by month.

Reviews of airlines servicing California

Get a feel of what it's like to fly with Alaska Airlines, Delta and Porter Airlines 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.

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?

Can I find deals for flights from Ontario to California that include hotel bookings?

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Can I find deals for business class flights from Ontario to California?

What is the cheapest month to book a flight from Region of Ontario to California?

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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

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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 28 March 2025.