Cheap flights from California to Ontario from C$ 77
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to Ontario departing on 22/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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American Airlines flights from California to Region of Ontario
Our best American Airlines deals on California to Region of Ontario flight tickets
Delta flights from California to Region of Ontario
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How to get the cheapest flight ticket from California to Region of Ontario
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Region of Ontario?
In general, May is the cheapest month to fly from California to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 360. If you are unable to visit Region of Ontario during the month of May, then departing from California during the month September is also very affordable. Most momondo users find prices during this month for around C$ 371.
What is the cheapest day to depart on your flight to Region of Ontario?
The cheapest day to depart from California to Region of Ontario is on a Monday. Travellers who choose to depart for Region of Ontario on a Monday will often find tickets for as low as C$ 309. The most expensive day to fly to Region of Ontario is Tuesday, with ticket prices averaging around C$ 463.
What is the cheapest time of day to depart on your flight to Region of Ontario?
Our most recent data shows that the best time of day to fly to Region of Ontario is in the evening. Flights from California to Region of Ontario during this time can be as low as C$ 336. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 456 on average. Flights to Region of Ontario from California in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest California to Ontario flight route?
Fly from Los Angeles to Toronto Pearson Intl for the best California - Ontario flight prices
How far in advance should I book a flight to Region of Ontario?
You are more likely to see cheaper flights to Region of Ontario from California when booking 15 weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around C$ 435 when searching 15 weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from California for as low as C$ 292 on momondo.
What cabin class options are available on California to Ontario flights?
There are 4 cabin classes available to choose from on California to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from California to Ontario?
WestJet, Air Canada, and Porter Airlines are the most popular carriers operating from California to Ontario
Which airlines fly to Region of Ontario?
Porter Airlines, Air Canada and WestJet are the top three most popular airlines that fly to Region of Ontario from California according to our data. Porter Airlines is the first choice among our users, with 39% of people opting to fly with this airline when travelling to Region of Ontario. Keep in mind that there are 5 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.
How many flights depart from California to Region of Ontario on average per day?
The number of flights available between California and Region of Ontario is 66 per day as of June 2025. The most frequent departure time is 12:00p.m., with 53% of daily flights leaving in the afternoon.
How many flights depart from California to Region of Ontario on average per week?
The number of flights available between California and Region of Ontario is 466 per week as of June 2025. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.
Cheap California to Region of Ontario flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from California to Region of Ontario
Best price found | C$ 77 |
|---|---|
Fastest flight time | 4h 41m |
Direct flights | Every day |
Airports in Region of Ontario | 3 airports |
When did momondo last update prices for flights from California to Ontario?
Prices for flights from California to Ontario refresh daily.
How many operators does momondo search for flights from California to Ontario?
The number of operators available for flights from California to Ontario is 5 as of June 2025.
How old do you have to be to fly from California to Ontario?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from California to Ontario.
What documentation or ID do you need to fly to Ontario?
The travel and health documents you'll need for your trip to Ontario may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from California to Region of Ontario?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from California to Region of Ontario is Embraer 195 E2 (34.39% of total bookings). The next most popular plane models are Boeing 737 MAX 8 (13.83%), Airbus A321-100/200 (13.47%), and Airbus A320-100/200 (9.15%).
Best airlines flying from California to Region of Ontario
Compare and see reviews for airlines that fly from California to Region of Ontario with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom C$ 144 | Free Cancellation | Rating 8.0 289 reviews | |||
| PriceFrom C$ 173 | Free Cancellation | Rating 7.8 398 reviews | |||
| PriceFrom C$ 199 | Free Cancellation | Rating 7.1 9,553 reviews | |||
| PriceFrom C$ 206 | Free Cancellation | Rating 7.4 8,801 reviews | |||
| PriceFrom C$ 218 | Free Cancellation | Rating 7.2 2,873 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from California to Ontario?
It is quick and easy to find California to Ontario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ontario that suits you.
Can I find flights from California to Ontario with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for California to Ontario flights to just show those with flexible booking policies.
How can momondo help me find flights from California to Ontario?
momondo helps you find the best flight between California and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from California to Ontario right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Ontario, momondo offers a useful price alert feature which will track prices for flights to Ontario from California and alert you when they change.