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Cheap flights from California to Ontario from C$ 88

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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — YYZ
25 Feb — 4 Mar1
1 adult

Cheap flight deals from California to Ontario

Keep the following information in mind while searching for California to Ontario flight deals. Data was last updated 20 February 2025.

Round-trip from

C$ 176

One-way from

C$ 88

Popular in

December

Cheapest in

September

Average price

C$ 430

Good round-trip deal

C$ 168 or less

Good one-way deal

C$ 183 or less
Porter Airlines
  • Porter Airlines
  • 10/4-15/4
  • Nonstop
  • 9h 21m total
  • California to Ontario
11/3
  • 11/3
  • 1 total stop
  • 13h 00m total
  • California to Ontario
Highest demand for flights based on searches. 6% potential increase in price (C$ 47 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease (C$ 18 potential savings vs. average RT price).
Average for round-trip flights in February 2025
Price to beat on a round-trip flight from California to Ontario.
Price to beat on a one-way flight from California to Ontario.

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 February 2025.

Thu 10/411:25 p.m.LAS - YYZ
Nonstop4h 18mMultiple Airlines
Tue 15/47:25 p.m.YYZ - LAS
Nonstop5h 03mMultiple Airlines
Deal found 20/2C$ 176
Wed 16/411:25 p.m.LAS - YYZ
Nonstop4h 18mWestJet
Mon 21/46:30 a.m.YYZ - LAS
1 stop9h 02mWestJet
Deal found 19/2C$ 213
Fri 21/310:35 p.m.LAS - YYZ
Nonstop4h 20mPorter Airlines
Mon 31/32:00 p.m.YYZ - LAS
1 stop9h 40mPorter Airlines
Deal found 20/2C$ 214
Tue 15/45:25 p.m.LAX - YYZ
1 stop10h 18mMultiple Airlines
Tue 22/48:00 p.m.YYZ - LAX
1 stop21h 11mMultiple Airlines
Deal found 19/2C$ 241
Mon 14/49:41 p.m.ONT - YYZ
1 stop30h 02mMultiple Airlines
Tue 22/48:00 p.m.YYZ - ONT
1 stop16h 53mMultiple Airlines
Deal found 19/2C$ 249
Tue 15/47:02 p.m.SFO - YYZ
1 stop8h 41mMultiple Airlines
Tue 22/48:00 p.m.YYZ - SFO
1 stop14h 45mMultiple Airlines
Deal found 20/2C$ 249
Tue 1/47:28 p.m.SJC - YYZ
1 stop7h 27mMultiple Airlines
Tue 8/48:00 p.m.YYZ - SJC
1 stop23h 31mMultiple Airlines
Deal found 19/2C$ 250
Wed 2/48:07 p.m.SAN - YYZ
1 stop7h 36mMultiple Airlines
Wed 9/48:00 p.m.YYZ - SAN
1 stop26h 16mMultiple Airlines
Deal found 20/2C$ 254
Tue 27/57:00 a.m.LAX - YYZ
1 stop10h 54mWestJet
Sat 7/66:45 a.m.YYZ - LAX
2 stops13h 32mWestJet
Deal found 20/2C$ 261
Mon 17/312:59 a.m.LAS - YYZ
1 stop10h 21mUnited Airlines
Wed 26/38:00 a.m.YYZ - LAS
2 stops12h 12mUnited Airlines
Deal found 20/2C$ 270
Sat 17/511:40 a.m.LAX - YUL
1 stop10h 03mWestJet
Sat 31/57:00 a.m.YUL - LAX
1 stop10h 12mWestJet
Deal found 19/2C$ 325
Sat 5/47:00 a.m.LAX - YYZ
Nonstop4h 48mPorter Airlines
Fri 11/45:30 p.m.YYZ - LAX
Nonstop5h 35mPorter Airlines
Deal found 20/2C$ 328

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 629,999 searches. Data last updated 20 February 2025.

Fly from

California

Fly to

Ontario

Route

Depart

Return

Price

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Thu 10/4

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

Nonstop4h 18m

Toronto Pearson Intl

Tue 15/4

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

Nonstop5h 03m

C$ 176

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Wed 16/4

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

Nonstop4h 18m

Toronto Pearson Intl

Mon 21/4

6:30 a.m.-12:32 p.m.

1 stop9h 02m

C$ 213

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Fri 21/3

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

Nonstop4h 20m

Toronto Pearson Intl

Mon 31/3

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

1 stop9h 40m

C$ 214

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Tue 15/4

5:25 p.m.-6:43 a.m.

1 stop10h 18m

Toronto Pearson Intl

Tue 22/4

8:00 p.m.-2:11 p.m.

1 stop21h 11m

C$ 241

OntarioToronto

ONT - YYZ

ONTYYZ

Ontario

Wed 9/4

2:43 p.m.-6:43 a.m.

1 stop13h 00m

Toronto Pearson Intl

Tue 15/4

8:00 p.m.-8:19 p.m.

1 stop27h 19m

C$ 249

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Tue 15/4

7:02 p.m.-6:43 a.m.

1 stop8h 41m

Toronto Pearson Intl

Tue 22/4

8:00 p.m.-7:45 a.m.

1 stop14h 45m

C$ 249

San JoseToronto

SJC - YYZ

SJCYYZ

San Jose

Tue 1/4

7:28 p.m.-5:55 a.m.

1 stop7h 27m

Toronto Pearson Intl

Tue 8/4

8:00 p.m.-4:31 p.m.

1 stop23h 31m

C$ 250

San DiegoToronto

SAN - YYZ

SANYYZ

San Diego

Wed 2/4

8:07 p.m.-6:43 a.m.

1 stop7h 36m

Toronto Pearson Intl

Wed 9/4

8:00 p.m.-7:16 p.m.

1 stop26h 16m

C$ 254

Los AngelesToronto

LAX - YYZ

LAXYYZ

Los Angeles

Tue 27/5

7:00 a.m.-8:54 p.m.

1 stop10h 54m

Toronto Pearson Intl

Sat 7/6

6:45 a.m.-5:17 p.m.

2 stops13h 32m

C$ 261

Las VegasToronto

LAS - YYZ

LASYYZ

Las Vegas Harry Reid Intl

Mon 17/3

12:59 a.m.-2:20 p.m.

1 stop10h 21m

Toronto Pearson Intl

Wed 26/3

8:00 a.m.-5:12 p.m.

2 stops12h 12m

C$ 270

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/2

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, January is the cheapest month in which you can book a flight from California to Region of Ontario (average of C$ 167). 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 February 2025.

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 February 2025.

The most flights from USCA to CAON are scheduled on a Thursday (20 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (10 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 February 2025.
Read reviews from past customers who have flown ANA, Delta and Alaska 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.

Comfort

8.2

Food

7.7

Entertainment

7.9

Overall

8.4

Crew

8.7

Boarding

8.5

Reviews

1 / 20

10.0
Excellent

Anonymous,Feb 2025

MNL - HND

Great experience! Roomy economy leg room with foot rest, great crew and accommodations. Highly recommend!

8.4
Very good

Comfort

8.2

Food

7.7

Entertainment

7.9

Overall

8.4

Crew

8.7

Boarding

8.5

Reviews

1 / 20

10.0
Excellent

Anonymous,Feb 2025

MNL - HND

Great experience! Roomy economy leg room with foot rest, great crew and accommodations. Highly recommend!

8.0
Very good

Comfort

8.2

Food

7.7

Entertainment

7.9

Overall

8.4

Crew

8.7

Boarding

8.5

Reviews

1 / 20

10.0
Excellent

Anonymous,Feb 2025

MNL - HND

Great experience! Roomy economy leg room with foot rest, great crew and accommodations. Highly recommend!

Comfort

8.2

Food

7.7

Entertainment

7.9

Overall

8.4

Crew

8.7

Boarding

8.5

Reviews

1 / 20

10.0
Excellent

Anonymous,Feb 2025

MNL - HND

Great experience! Roomy economy leg room with foot rest, great crew and accommodations. Highly recommend!

Comfort

8.2

Food

7.7

Entertainment

7.9

Overall

8.4

Crew

8.7

Boarding

8.5

Reviews

1 / 20

10.0
Excellent

Anonymous,Feb 2025

MNL - HND

Great experience! Roomy economy leg room with foot rest, great crew and accommodations. Highly recommend!

Comfort

8.2

Food

7.7

Entertainment

7.9

Overall

8.4

Crew

8.7

Boarding

8.5

Reviews

1 / 20

10.0
Excellent

Anonymous,Feb 2025

MNL - HND

Great experience! Roomy economy leg room with foot rest, great crew and accommodations. Highly recommend!

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$ 88 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on United Airlines and Porter Airlines, with prices starting from C$ 89 and C$ 94, 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, January is the cheapest month in which you can book a flight from California to Region of Ontario (average of C$ 167). 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 6 airlines flying from California to Ontario

Discover the top 6 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 629,999 searches. Data last updated 20 February 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 179AverageC$ 782FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 212AverageC$ 591FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Lynx AirCheapestC$ 214AverageC$ 302FlexibilityNo cancel feeOn-timeN/A
Search Lynx Air flights
Air TransatCheapestC$ 246AverageC$ 572FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
WestJetCheapestC$ 254AverageC$ 497FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 324AverageC$ 713FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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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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