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Cheap flights from California to Ontario from C$ 147

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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YYZ
25 Nov — 2 Dec1
1 adult

Cheap flight deals from California to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from California (USCA) to Ontario (CAON). 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 20 November 2024.

Find flight deals from California to Ontario

Cheapest flights from California to Ontario
Explore the most affordable flight options available from California to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 November 2024.

Fri 13/127:35 a.m.LAX - YYZ
Nonstop4h 41mMultiple Airlines
Sun 15/127:55 a.m.YYZ - LAX
1 stop11h 57mMultiple Airlines
Deal found 19/11C$ 283
Tue 10/129:35 a.m.SAN - YYZ
Nonstop4h 45mPorter Airlines
Mon 16/1210:20 a.m.YYZ - SAN
Nonstop5h 45mPorter Airlines
Deal found 19/11C$ 301
Tue 10/127:35 a.m.LAX - YYZ
Nonstop4h 41mPorter Airlines
Sat 14/129:30 a.m.YYZ - LAX
Nonstop5h 38mPorter Airlines
Deal found 18/11C$ 308
Fri 6/1210:30 a.m.LAX - YYZ
1 stop10h 04mWestJet
Tue 10/121:50 p.m.YYZ - LAX
1 stop10h 52mWestJet
Deal found 18/11C$ 312
Tue 10/129:35 a.m.SAN - YYZ
Nonstop4h 45mMultiple Airlines
Fri 13/1210:20 a.m.YYZ - SAN
Nonstop5h 45mMultiple Airlines
Deal found 19/11C$ 330
Tue 10/123:25 p.m.SAN - YYZ
1 stop17h 01mUnited Airlines
Mon 16/129:25 a.m.YYZ - SAN
Nonstop5h 38mUnited Airlines
Deal found 19/11C$ 346
Mon 9/127:00 p.m.SFO - YYZ
1 stop17h 16mMultiple Airlines
Wed 11/128:00 p.m.YYZ - SFO
1 stop14h 14mMultiple Airlines
Deal found 19/11C$ 350
Wed 4/121:42 p.m.SJC - YYZ
1 stop14h 04mMultiple Airlines
Mon 9/128:00 p.m.YYZ - SJC
1 stop14h 46mMultiple Airlines
Deal found 19/11C$ 361
Wed 4/121:30 p.m.SFO - YUL
1 stop7h 58mPorter Airlines
Mon 9/126:45 a.m.YUL - SFO
1 stop8h 39mPorter Airlines
Deal found 20/11C$ 375
Tue 3/125:30 a.m.OAK - YYZ
2 stops10h 51mMultiple Airlines
Wed 11/128:00 p.m.YYZ - OAK
1 stop16h 25mMultiple Airlines
Deal found 19/11C$ 378
Thu 5/121:15 p.m.LAX - YUL
1 stop8h 13mPorter Airlines
Mon 9/126:45 a.m.YUL - LAX
1 stop8h 23mPorter Airlines
Deal found 20/11C$ 378
Tue 10/125:30 a.m.LAX - YUL
1 stop8h 05mMultiple Airlines
Tue 17/125:35 p.m.YUL - LAX
1 stop18h 40mMultiple Airlines
Deal found 18/11C$ 389

Find flights from California to Ontario within your budget

Customize your flight search to find flights from California to Ontario 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 645,034 searches. Data last updated 20 November 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Fri 13/12

7:35 a.m.-3:16 p.m.

Nonstop4h 41m

Toronto Pearson Intl

Sun 15/12

7:55 a.m.-4:52 p.m.

1 stop11h 57m

C$ 283

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Tue 10/12

9:35 a.m.-5:20 p.m.

Nonstop4h 45m

Toronto Pearson Intl

Mon 16/12

10:20 a.m.-1:05 p.m.

Nonstop5h 45m

C$ 301

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Tue 10/12

7:35 a.m.-3:16 p.m.

Nonstop4h 41m

Toronto Pearson Intl

Sat 14/12

9:30 a.m.-12:08 p.m.

Nonstop5h 38m

C$ 308

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Fri 6/12

10:30 a.m.-11:34 p.m.

1 stop10h 04m

Toronto Pearson Intl

Tue 10/12

1:50 p.m.-9:42 p.m.

1 stop10h 52m

C$ 312

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Mon 13/1

12:35 p.m.-12:26 a.m.

1 stop8h 51m

Toronto Pearson Intl

Fri 17/1

10:20 a.m.-1:05 p.m.

Nonstop5h 45m

C$ 319

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Tue 10/12

3:25 p.m.-11:26 a.m.

1 stop17h 01m

Toronto Pearson Intl

Mon 16/12

9:25 a.m.-12:03 p.m.

Nonstop5h 38m

C$ 346

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Mon 9/12

7:00 p.m.-3:16 p.m.

1 stop17h 16m

Toronto Pearson Intl

Wed 11/12

8:00 p.m.-7:14 a.m.

1 stop14h 14m

C$ 350

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Wed 4/12

1:42 p.m.-6:46 a.m.

1 stop14h 04m

Toronto Pearson Intl

Mon 9/12

8:00 p.m.-7:46 a.m.

1 stop14h 46m

C$ 361

OaklandToronto

OAK - YYZ

OAKYYZ

Oakland

Sat 18/1

5:34 p.m.-5:55 a.m.

1 stop9h 21m

Toronto Pearson Intl

Wed 29/1

8:00 p.m.-6:47 a.m.

1 stop13h 47m

C$ 365

San FranciscoMontreal

SFO - YUL

SFOYUL

San Francisco

Wed 4/12

1:30 p.m.-12:28 a.m.

1 stop7h 58m

Montreal Pierre Elliott Trudeau Intl

Mon 9/12

6:45 a.m.-12:24 p.m.

1 stop8h 39m

C$ 375

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/11

Showing 1-10 of 60 results
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Best time to book a flight from California to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from California 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 California to Ontario

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

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

Currently, October is the cheapest month in which you can book a flight from California to Region of Ontario (average of C$ 178). Flying from California to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 CA to ON?

Find hourly flight availability from California to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 November 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from California to Region of Ontario as you normally would.

Weekly flight availability from California to Region of Ontario

Explore weekly flight availability from California to Ontario. 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 20 November 2024.

The most flights from USCA to CAON are scheduled on a Monday (25 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (15 on average).

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Region of Ontario, 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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated 20 November 2024.
Read reviews from past customers who have flown Porter Airlines, WestJet and United Airlines from California to Ontario. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
8,756 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

8.0
Very good
8,756 reviews
8.0
Very good
8,756 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

8.0
Very good
9,461 reviews
8.0
Very good
8,756 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

7.8
Good
288 reviews
8.0
Very good
8,756 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

7.8
Good
389 reviews
8.0
Very good
8,756 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

7.6
Good
1,637 reviews
8.0
Very good
8,756 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from California to Ontario. 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 California to Region of Ontario one-way?

    C$ 147 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Porter Airlines and WestJet, with prices starting from C$ 147 and C$ 150, respectively.

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

    Yes. In addition to deals on California to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from California to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to Ontario.

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

    Yes. Cheapflights offers flight deals from California to Ontario 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 California to Region of Ontario?

    Currently, October is the cheapest month in which you can book a flight from California to Region of Ontario (average of C$ 178). Flying from California to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 California to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from California to Ontario

Discover the top 7 airlines that operate flights from California to Ontario. 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 645,034 searches. Data last updated 20 November 2024.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 203AverageC$ 590FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 227AverageC$ 781FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Lynx AirCheapestC$ 241AverageC$ 307FlexibilityNo cancel feeOn-timeN/A
Search Lynx Air flights
WestJetCheapestC$ 250AverageC$ 535FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air TransatCheapestC$ 301AverageC$ 564FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
American AirlinesCheapestC$ 341AverageC$ 444FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 391AverageC$ 725FlexibilityNo cancel feeOn-time69%
Search United 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 California to Ontario?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ontario from California today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from California to Ontario?

Cheapflights helps you find that perfect flight to Ontario from California by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from California to Ontario with no change fees?

Certainly. Search results for flights to Ontario from California shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ontario from California today and book when prices fit your budget.

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