Cheap flights from San Francisco to Toronto from $159

The month of January is, on average, the cheapest month to fly to Toronto from San Francisco, with most prices found around $384. If you are unable to visit Toronto during the month of January, then departing from San Francisco during the month February is also very affordable. Most momondo users find prices during this month for around $389.

On average, the least expensive day to fly to Toronto from San Francisco is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $605. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Toronto is Sunday, with ticket prices averaging around $762.

At noon is the cheapest time of day to fly from San Francisco to Toronto when you can find flight prices for as low as $564. Flying to Toronto at noon is an ideal time because this is during off-peak travel hours. Flights to Toronto are more costly in the morning, with an average ticket price of $786. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Toronto from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Toronto for around $510 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Toronto from San Francisco for as low as $456 on momondo.

There are 4 cabin classes available to choose from on San Francisco to Toronto 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 18% on your flight if you consider stops on a San Francisco to Toronto flight.

As of September 2026, prices for San Francisco to Toronto flights are approximately 11% cheaper when compared to flights at the same time last year.

WestJet, Delta, and United Airlines are the most popular carriers operating from San Francisco to Toronto

Air Canada, Porter Airlines and United Airlines are the top three most popular airlines that fly to Toronto from San Francisco according to our data. Air Canada is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Toronto. Keep in mind that there are 8 different airlines that fly to Toronto on a routine basis, so you have a few additional options to choose from.

Detroit (DTW) was the most common stop: 63% of momondo users choosing 1-stop flights on this route connected there.

Flights via Calgary (YYC) offer the lowest average round-trip price of $309.

Flights connecting via Detroit (DTW) have the shortest average one-way travel time: 7h 10m.

Detroit (DTW) has the shortest average layover time for this route: 0h 59m.

The number of flights available between San Francisco and Toronto is 17 per day as of September 2026. The most frequent departure time is 8:00AM, with 50% of daily flights leaving at noon.

The number of flights available between San Francisco and Toronto is 122 per week as of September 2026. The most frequent departure day is Tue, with 22% of weekly flights leaving on this day.