Cheap flights from Toronto to San Francisco from $178

If you aren’t able to travel to San Francisco during the month of April, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $354.

The cheapest day to depart from Toronto to San Francisco is on a Thursday when prices can be found for as low as $463. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $745.

Our data shows that the cheapest Toronto to San Francisco flights are usually those with departure times in the morning. Our users have found flights to San Francisco in the morning for as low as $476. Flights in the evening are often more expensive with an average ticket price of $958.

Fly from Toronto Pearson Intl to San Francisco for the best Toronto - San Francisco flight prices

You are more likely to see cheaper flights to San Francisco from Toronto when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $375 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Toronto for as low as $313 on momondo.

There are 4 cabin classes available to choose from on Toronto to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 16% on your flight if you consider stops on a Toronto to San Francisco flight.

As of March 2026, prices for Toronto to San Francisco flights are approximately 6% more expensive when compared to flights at the same time last year.

WestJet, Porter Airlines, and Air Canada are the most popular carriers operating from Toronto to San Francisco

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to San Francisco from Toronto according to our data. Air Canada is the first choice among our users, with 47% 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.

Historically, on average around 26% of flights between Toronto and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 161 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 16% of their flights experiencing any sort of delay.

Calgary (YYC) was the most common stop: 80% of momondo users choosing 1-stop flights on this route connected there.

Flights via Calgary (YYC) offer the lowest average round-trip price of $280.

Flights connecting via Calgary (YYC) have the shortest average one-way travel time: 8h 50m.

Calgary (YYC) has the shortest average layover time for this route: 1h 33m.

As of March 2026, there are 4 flights per day flying from Toronto to San Francisco. The most common time of day flights depart is 6:00PM, with 53% of flights taking off at noon.

As of March 2026, there are 33 flights per week flying from Toronto to San Francisco. The most common day of the week flights depart is Sat, with 45% of flights taking off on this day.