Cheap flights from Ontario to California from C$ 128
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 26/5. 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 17 April 2025.
Round-trip from | C$ 182 |
---|---|
One-way from | C$ 128 |
Popular in | December |
Cheapest in | September |
Average price | C$ 385 |
Good round-trip deal | C$ 295 or less |
Good one-way deal | C$ 205 or less |
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 17 April 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 17 April 2025.
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 629,999 searches. Data last updated 17 April 2025.
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
Sat 31/5
12:00 p.m.-8:21 p.m.
2 stops11h 21m
Las Vegas Harry Reid Intl
Tue 3/6
1:25 p.m.-6:52 a.m.
2 stops14h 27m
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Sat 31/5
1:50 p.m.-3:43 p.m.
Nonstop4h 53m
Las Vegas Harry Reid Intl
Tue 3/6
1:25 p.m.-5:51 a.m.
2 stops13h 26m
TorontoLas Vegas
YKF - LAS
YKFLAS
Toronto Region of Waterloo Intl
Thu 18/9
7:45 p.m.-10:40 a.m.
1 stop17h 55m
Las Vegas Harry Reid Intl
Mon 22/9
10:00 a.m.-12:45 a.m.
2 stops11h 45m
TorontoLos Angeles
YYZ - LAX
YYZLAX
Toronto Pearson Intl
Wed 25/6
9:00 a.m.-8:23 p.m.
2 stops14h 23m
Los Angeles
Tue 19/8
11:40 a.m.-12:24 a.m.
1 stop9h 44m
TorontoLas Vegas
YTZ - LAS
YTZLAS
Toronto Island
Tue 7/10
3:25 p.m.-10:12 p.m.
1 stop9h 47m
Las Vegas Harry Reid Intl
Tue 21/10
11:15 p.m.-11:45 a.m.
1 stop9h 30m
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Sat 3/5
5:30 p.m.-10:12 p.m.
1 stop7h 42m
Las Vegas Harry Reid Intl
Tue 6/5
12:59 a.m.-11:34 a.m.
1 stop7h 35m
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Fri 2/5
4:00 p.m.-10:19 p.m.
1 stop9h 19m
Las Vegas Harry Reid Intl
Tue 6/5
4:50 p.m.-6:04 a.m.
1 stop10h 14m
TorontoLas Vegas
YYZ - LAS
YYZLAS
Toronto Pearson Intl
Fri 2/5
6:55 a.m.-11:25 a.m.
1 stop7h 30m
Las Vegas Harry Reid Intl
Mon 5/5
11:10 p.m.-6:35 a.m.
Nonstop4h 25m
TorontoLos Angeles
YYZ - LAX
YYZLAX
Toronto Pearson Intl
Tue 6/5
9:45 a.m.-12:10 p.m.
Nonstop5h 25m
Los Angeles
Wed 14/5
6:05 p.m.-6:14 a.m.
1 stop9h 09m
MontrealLos Angeles
YUL - LAX
YULLAX
Montreal Pierre Elliott Trudeau Intl
Sat 16/8
6:45 a.m.-6:10 p.m.
2 stops14h 25m
Los Angeles
Mon 18/8
11:40 a.m.-12:43 a.m.
1 stop10h 03m
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?
Currently, September is the cheapest month in which you can book a flight from Region of Ontario to California (average of C$ 230). 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?
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 17 April 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.
Weekly flight availability from Region of Ontario to California
Explore weekly flight availability from Ontario to California. 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 17 April 2025.
The most flights from CAON to USCA are scheduled on a Monday (21 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (17 on average).
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 - 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
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 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 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 17 April 2025.
Get a feel of what it's like to fly with Alaska Airlines, Porter Airlines and Delta 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.
Boarding
Comfort
Food
Overall
Entertainment
Crew
Reviews
Anonymous,Apr 2025
LAS - STS
Boarding
Comfort
Food
Overall
Entertainment
Crew
Reviews
Anonymous,Apr 2025
LAS - STS
Boarding
Comfort
Food
Overall
Entertainment
Crew
Reviews
Anonymous,Apr 2025
LAS - STS
Boarding
Comfort
Food
Overall
Entertainment
Crew
Reviews
Anonymous,Apr 2025
LAS - STS
Boarding
Comfort
Food
Overall
Entertainment
Crew
Reviews
Anonymous,Apr 2025
LAS - STS
Boarding
Comfort
Food
Overall
Entertainment
Crew
Reviews
Anonymous,Apr 2025
LAS - STS
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.
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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
Discover the top 9 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 629,999 searches. Data last updated 17 April 2025.
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 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.