Cheap flights from Ontario to San Francisco from $122
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to San Francisco departing on 8/22. 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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Porter Airlines flights from Region of Ontario to San Francisco
Our best Porter Airlines deals on Region of Ontario to San Francisco flight tickets
American Airlines flights from Region of Ontario to San Francisco
Our best American Airlines deals on Region of Ontario to San Francisco flight tickets
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How to get the cheapest flight ticket from Region of Ontario to San Francisco
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 San Francisco?
If you aren’t able to travel to San Francisco during the month of April, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $330.
What is the cheapest day to depart on your flight to San Francisco?
The cheapest day to depart from Region of Ontario to San Francisco is on a Thursday when prices can be found for as low as $438. The most expensive day to fly to San Francisco is Tuesday, with ticket prices averaging around $757.
What is the cheapest time of day to depart on your flight to San Francisco?
Our data shows that the cheapest Region of Ontario to San Francisco flights are usually those with departure times at noon. Our users have found flights to San Francisco at noon for as low as $414. Flights in the evening are often more expensive with an average ticket price of $910.
What is the cheapest Ontario to San Francisco flight route?
Fly from Toronto Pearson Intl to San Francisco for the best Ontario - San Francisco flight prices
How far in advance should I book a flight to San Francisco?
You are more likely to see cheaper flights to San Francisco from Region of Ontario when booking 17 weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $386 when searching 17 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Region of Ontario for as low as $335 on momondo.
What cabin class options are available on Ontario to San Francisco flights?
There are 4 cabin classes available to choose from on Ontario to San Francisco 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 Ontario to San Francisco?
WestJet, Flair Airlines, and Porter Airlines are the most popular carriers operating from Ontario to San Francisco
What airlines fly to San Francisco?
Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to San Francisco from Region of Ontario according to our data. Air Canada is the first choice among our users, with 44% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 7 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.
How many flights depart from Region of Ontario to San Francisco on average per day?
As of June 2025, 26 flights take off from Region of Ontario and land in San Francisco each day. The most common flight departure time for this route is 7:00PM, with 45% of daily flights taking off at noon.
How many flights depart from Region of Ontario to San Francisco on average per week?
The number of flights available between Region of Ontario and San Francisco is 185 per week as of June 2025. The most frequent departure day is Wed, with 18% of weekly flights leaving on this day.
Cheap Region of Ontario to San Francisco flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to San Francisco
Best Price Found | $122 |
|---|---|
Fastest flight time | 5h 28m |
Direct flights | Every day |
Airports in San Francisco | 1 airport |
When did momondo last update prices for flights from Ontario to San Francisco Airport?
Prices for flights from Ontario to San Francisco Airport refresh daily.
How many operators does momondo search for flights from Ontario to San Francisco Airport?
The number of operators available for flights from Ontario to San Francisco Airport is 7 as of June 2025.
How old do you have to be to fly from Ontario to San Francisco Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The travel and health documents required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Region of Ontario to San Francisco?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Region of Ontario to San Francisco is Embraer 195 E2 (37.44% of total bookings). The next most popular plane models are Boeing 737-800 (32.51%), Airbus A320-100/200 (12.38%), and Boeing 737 MAX 8 (4.56%).
Best airlines flying from Region of Ontario to San Francisco
Compare and see reviews for airlines that fly from Region of Ontario to San Francisco with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $174 | Free Cancellation | Rating 7.2 2,876 reviews | |||
| PriceFrom $241 | Free Cancellation | Rating 7.4 8,809 reviews | |||
| PriceFrom $251 | Free Cancellation | Rating 8.0 289 reviews | |||
| PriceFrom $265 | Free Cancellation | Rating 7.8 398 reviews | |||
| PriceFrom $267 | Free Cancellation | Rating 7.1 9,568 reviews | |||
| PriceFrom $288 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $308 | Free Cancellation | Rating 8.0 7,965 reviews |
Traveling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ontario to San Francisco?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to San Francisco. momondo saves you time and could save you money on your trip.
Can I find flights from Ontario to San Francisco with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to San Francisco from Ontario with this policy.
How can momondo help me find flights from Ontario to San Francisco?
momondo provides multiple filters to help you find the best flight to San Francisco from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Ontario to San Francisco right now. Can momondo alert me if prices change?
Price alerts on flights to San Francisco from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.