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$102+ Cheap flights from Ontario to California

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 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — LAX
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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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 May 1, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$169
(Kiwi.com)

One-way from

$111
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$275

Good round-trip deal

$163 or less

Good one-way deal

$131 or less
Provider with most accurate pricing for Toronto (YTO)-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Toronto (YTO)-Los Angeles flights.
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From Ontario to California
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One-way flight from Ontario to California
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Highest demand for flights based on searches. 9% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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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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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 May 1, 2025.

This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3112:00 pmYYZ - LAX
2 stops11h 23mWestJet
Mon 8/411:10 pmLAX - YYZ
Nonstop4h 50mWestJet
Deal found 5/1$169
This Cheapflightsfares deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2810:00 amYYZ - LAS
1 stop10h 35mWestJet
Wed 6/48:00 amLAS - YYZ
1 stop9h 54mWestJet
Deal found 4/29$178
This Cheapflightsfares deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/216:55 amYYZ - LAS
1 stop7h 30mPorter Airlines
Tue 5/274:45 pmLAS - YYZ
Nonstop4h 27mPorter Airlines
Deal found 4/29$180
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/19:45 amYYZ - LAX
Nonstop5h 25mMultiple Airlines
Wed 7/27:00 amLAX - YYZ
2 stops11h 03mMultiple Airlines
Deal found 4/30$189
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/286:55 amYYZ - LAS
1 stop7h 30mMultiple Airlines
Tue 6/31:25 pmLAS - YYZ
2 stops13h 26mMultiple Airlines
Deal found 4/30$203
This Air Canada deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/73:25 pmYTZ - LAS
1 stop9h 47mAir Canada
Tue 10/2111:15 pmLAS - YTZ
1 stop9h 30mAir Canada
Deal found 4/30$207
This Jettzy deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/18:35 pmYYZ - LAS
Nonstop4h 46mAir Canada
Thu 9/411:15 pmLAS - YYZ
1 stop8h 24mAir Canada
Deal found 4/30$210
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/314:30 pmYYZ - LAX
Nonstop5h 24mUnited Airlines
Sat 6/75:22 amLAX - YYZ
1 stop6h 49mUnited Airlines
Deal found 4/30$212
This Cheapflightsfares deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/216:45 amYUL - LAX
1 stop8h 25mPorter Airlines
Wed 5/281:10 pmLAX - YUL
1 stop8h 27mPorter Airlines
Deal found 4/29$217
This Trip.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/157:00 amYUL - LAX
1 stop10h 12mWestJet
Tue 7/227:00 amLAX - YUL
2 stops14h 37mWestJet
Deal found 4/28$221
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/293:10 pmYYZ - LAX
1 stop9h 42mAmerican Airlines
Wed 6/412:30 amLAX - YYZ
1 stop11h 00mAmerican Airlines
Deal found 4/29$228
This Cheapflightsfares deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/227:00 amYUL - LAX
1 stop10h 12mMultiple Airlines
Tue 7/292:00 pmLAX - YUL
1 stop7h 37mMultiple Airlines
Deal found 4/29$233

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 2,558,603 searches. Data last updated May 1, 2025.
Use the filters below to find and compare flights from Ontario to California that are best for you.

Fly from

Ontario

Fly to

California

Route

Depart

Return

Price

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Thu 7/31

12:00 pm-8:23 pm

2 stops11h 23m

Los Angeles

Mon 8/4

11:10 pm-7:00 am

Nonstop4h 50m

$169

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Wed 5/28

10:00 am-5:35 pm

1 stop10h 35m

Las Vegas Harry Reid Intl

Wed 6/4

8:00 am-8:54 pm

1 stop9h 54m

$178

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Wed 5/21

6:55 am-11:25 am

1 stop7h 30m

Las Vegas Harry Reid Intl

Tue 5/27

4:45 pm-12:12 am

Nonstop4h 27m

$180

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Sun 6/1

9:45 am-12:10 pm

Nonstop5h 25m

Los Angeles

Wed 7/2

7:00 am-9:03 pm

2 stops11h 03m

$189

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Wed 5/28

6:55 am-11:25 am

1 stop7h 30m

Las Vegas Harry Reid Intl

Tue 6/3

1:25 pm-5:51 am

2 stops13h 26m

$203

TorontoLas Vegas

YYZ - LAS

YYZLAS

Toronto Pearson Intl

Mon 9/1

8:35 pm-10:21 pm

Nonstop4h 46m

Las Vegas Harry Reid Intl

Thu 9/4

11:15 pm-10:39 am

1 stop8h 24m

$210

TorontoLos Angeles

YYZ - LAX

YYZLAX

Toronto Pearson Intl

Sat 5/31

6:35 pm-8:59 pm

Nonstop5h 24m

Los Angeles

Fri 6/6

12:23 am-12:42 pm

1 stop9h 19m

$212

MontrealLos Angeles

YUL - LAX

YULLAX

Montreal Pierre Elliott Trudeau Intl

Wed 5/21

6:45 am-12:10 pm

1 stop8h 25m

Los Angeles

Wed 5/28

1:10 pm-12:37 am

1 stop8h 27m

$217

MontrealLos Angeles

YUL - LAX

YULLAX

Montreal Pierre Elliott Trudeau Intl

Tue 7/15

7:00 am-2:12 pm

1 stop10h 12m

Los Angeles

Tue 7/22

7:00 am-12:37 am

2 stops14h 37m

$221

TorontoLas Vegas

YTZ - LAS

YTZLAS

Toronto Island

Tue 6/24

3:25 pm-12:27 am

2 stops12h 02m

Las Vegas Harry Reid Intl

Tue 7/1

7:25 am-9:31 pm

2 stops11h 06m

$227

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 60 results
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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, January is the cheapest month in which you can book a flight from Region of Ontario to California (average of $246). Flying from Region of Ontario to California in March is currently the most expensive (average of $327). 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 May 1, 2025.

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

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

In terms of precipitation, rainfall in California ranges from 0.0 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. July is typically the driest time to visit California when rainfall is around 0.0 in.

Temperature in California by month

Plan your trip to California by taking into account the average temperature totals 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

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 May 1, 2025.
See what other customers who have flown with Alaska Airlines, Porter Airlines and Delta from Ontario to California have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Porter Airlines
8.0
Very good
285 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Air Transat
7.8
Good
385 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
SWISS
7.5
Good
1,588 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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?

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $111. However, be on the lookout for offers from Porter Airlines and Air Canada, as they are both options that can get you from Region of Ontario to California for a low price.

  • 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 $246). Flying from Region of Ontario to California in March is currently the most expensive (average of $327). 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 Ontario to California

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Ontario to California

Discover the top 7 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 2,558,603 searches. Data last updated May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapest$115Average$345FlexibilityNo cancel feeOn-time52%
United AirlinesCheapest$148Average$493FlexibilityNo cancel feeOn-time69%
WestJetCheapest$154Average$325FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$186Average$444FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$199Average$470FlexibilityNo cancel feeOn-time71%
Air TransatCheapest$210Average$356FlexibilityNo cancel feeOn-time50%
DeltaCheapest$257Average$427FlexibilityNo cancel feeOn-timeN/A

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