Cheap flights from California to Ontario from C$ 108
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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
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 21 January 2025.
Find flight deals from California to Ontario
Cheapest flights from California to OntarioExplore 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 21 January 2025.
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 21 January 2025.
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 21 January 2025.
Fly from
Fly to
Route
Depart
Return
Price
Las VegasToronto
LAS - YYZ
LASYYZ
Las Vegas Harry Reid Intl
Wed 5/3
11:25 p.m.-6:45 a.m.
Nonstop4h 20m
Toronto Pearson Intl
Wed 12/3
7:25 p.m.-9:30 p.m.
Nonstop5h 05m
Las VegasToronto
LAS - YYZ
LASYYZ
Las Vegas Harry Reid Intl
Thu 13/2
11:25 p.m.-6:43 a.m.
Nonstop4h 18m
Toronto Pearson Intl
Wed 19/2
8:00 p.m.-10:13 p.m.
Nonstop5h 13m
Las VegasToronto
LAS - YYZ
LASYYZ
Las Vegas Harry Reid Intl
Thu 13/2
10:35 p.m.-5:55 a.m.
Nonstop4h 20m
Toronto Pearson Intl
Sat 22/2
7:25 p.m.-9:28 p.m.
Nonstop5h 03m
Las VegasToronto
LAS - YYZ
LASYYZ
Las Vegas Harry Reid Intl
Tue 4/2
11:35 a.m.-6:56 p.m.
Nonstop4h 21m
Toronto Pearson Intl
Fri 7/2
8:15 a.m.-10:19 a.m.
Nonstop5h 04m
Los AngelesToronto
LAX - YYZ
LAXYYZ
Los Angeles
Tue 11/2
9:30 p.m.-6:43 a.m.
1 stop30h 13m
Toronto Pearson Intl
Tue 18/2
8:00 p.m.-9:40 a.m.
1 stop16h 40m
San FranciscoToronto
SFO - YYZ
SFOYYZ
San Francisco
Tue 4/3
10:59 p.m.-6:45 a.m.
1 stop28h 46m
Toronto Pearson Intl
Tue 11/3
8:00 p.m.-7:06 a.m.
1 stop14h 06m
San JoseToronto
SJC - YYZ
SJCYYZ
San Jose
Tue 18/2
9:18 p.m.-6:43 a.m.
1 stop30h 25m
Toronto Pearson Intl
Tue 25/2
8:00 p.m.-10:21 a.m.
1 stop17h 21m
SacramentoToronto
SMF - YYZ
SMFYYZ
Sacramento Intl
Tue 4/3
4:20 p.m.-5:55 a.m.
1 stop10h 35m
Toronto Pearson Intl
Tue 11/3
8:00 p.m.-8:37 a.m.
1 stop15h 37m
Las VegasToronto
LAS - YYZ
LASYYZ
Las Vegas Harry Reid Intl
Thu 6/2
12:59 a.m.-11:25 a.m.
1 stop7h 26m
Toronto Pearson Intl
Sat 8/2
3:00 p.m.-8:15 p.m.
1 stop8h 15m
OntarioToronto
ONT - YYZ
ONTYYZ
Ontario
Sat 15/2
12:16 p.m.-5:55 a.m.
1 stop14h 39m
Toronto Pearson Intl
Wed 19/2
8:00 p.m.-7:26 a.m.
1 stop14h 26m
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.
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$ 168). 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 21 January 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 21 January 2025.
The most flights from USCA to CAON are scheduled on a Monday (21 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (12 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 21 January 2025.
Read reviews from past customers who have flown United Airlines, Porter Airlines and WestJet 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
Crew
Overall
Food
Entertainment
Boarding
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Comfort
Crew
Overall
Food
Entertainment
Boarding
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Comfort
Crew
Overall
Food
Entertainment
Boarding
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Comfort
Crew
Overall
Food
Entertainment
Boarding
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Comfort
Crew
Overall
Food
Entertainment
Boarding
Reviews
This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Comfort
Crew
Overall
Food
Entertainment
Boarding
Reviews
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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 21 January 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 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.