Cheap flights from Toronto Pearson Intl Airport to San Francisco from C$ 256

The cheapest month to fly to San Francisco from Toronto Pearson Intl Airport is in January. Flight prices, which tend to average around C$ 483, are often lower during this time because this is during the off-season. The month of November is another great option to travel to San Francisco, with average flight prices from Toronto Pearson Intl Airport averaging around C$ 500.

The cheapest day to depart from Toronto Pearson Intl Airport to San Francisco is on a Friday. Travellers who choose to depart for San Francisco on a Friday will often find tickets for as low as C$ 724. On the other hand, Sunday is the most expensive day to depart from Toronto Pearson Intl Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 1,155.

Flying to San Francisco from Toronto Pearson Intl Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as C$ 704 when looking at flights departing in the morning. In contrast, the most expensive time of day to depart to San Francisco is in the afternoon when prices are around C$ 1,331.

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

You are more likely to see cheaper flights to San Francisco from Toronto Pearson Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around C$ 562 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 Pearson Intl Airport for as low as C$ 490 on momondo.

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

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

Porter Airlines, Air Canada and United Airlines are the top three most popular airlines that fly to San Francisco from Toronto Pearson Intl Airport according to our data. Porter Airlines is the first choice among our users, with 43% of people opting to fly with this airline when travelling to San Francisco. Keep in mind that there are 8 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 27% 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 149 minutes.

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

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines has had the least delays on this route over the last 12 months, with about 19% of their flights experiencing any sort of delay.

Calgary (YYC) was the most common stop: 95% of momondo users choosing one-stop flights on this route connected there.

Flights via Calgary (YYC) offer the lowest average round-trip price of C$ 418.

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 7h 30m.

Calgary (YYC) has the shortest average layover time for this route: 2h 13m.

The number of flights available between Toronto Pearson Intl Airport and San Francisco is 23 per day as of September 2026. The most frequent departure time is 6:00p.m., with 49% of daily flights leaving at noon.

The number of flights available between Toronto Pearson Intl Airport and San Francisco is 162 per week as of September 2026. The most frequent departure day is Fri, with 17% of weekly flights leaving on this day.