Cheap Flights Toronto – San Francisco from £117

Flight FAQs

• Which airlines offer the cheapest flights from Toronto (YTO) to San Francisco (SFO)?

  Based on Trip.com data, Air Canada offers one-way fares as low as £117 on Cheapest nonstop routes (e.g. YTZ to SFO on Thu, May 7), while Porter Airlines offers Cheapest nonstop round-trips from £193 departing on Wed, Apr 15 and returning on Wed, Apr 22.

• Which airlines offer direct flights from Toronto to San Francisco?

  At the moment, you can catch a direct flight from Toronto to San Francisco with the following airlines, including: Air Canada Porter Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long is the flight from Toronto (YTO) to San Francisco (SFO)?

  It takes about 5 hours 48 minutes to fly from Toronto (YTO) to San Francisco (SFO).

• When is the best time to book flights from Toronto to San Francisco?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Toronto to San Francisco is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Toronto to San Francisco?

  Based on Trip.com data in the past 4 weeks, there is 75 flight per week flying from Toronto to San Francisco. You can check the weekly schedule for popular airlines on this route below: Air Canada: S/M/T/W/T/F/S -- AC4105 (06:59) Air Canada: S/M/T/W/T/F/S -- AC745 (19:12) United Airlines: S/M/T/W/T/F/S -- UA565 (06:59)

• How can I find the best deals on flights from Toronto to San Francisco?

  To find best deals on flights from Toronto to San Francisco, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, May 7, with one-way flights priced at just £117.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is United Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for San Francisco travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When is the best time to book a flight from Toronto to San Francisco to get the best price?

  The cheapest months to fly from Toronto to San Francisco is November, when demand for travel is lower.

• Which upcoming date is the cheapest for flights from Toronto to San Francisco?

  After crunching the numbers on our March flight calendar, it's currently cheapest to fly from Toronto to San Francisco on March 24, 2026 with WestJet, with prices starting at £91.

• Which airports can I fly through when travelling to San Francisco from Toronto?

  You can land at any one of the following hubs in San Francisco, with Toronto Pearson International Airport to San Francisco International Airport (YYZ-SFO) is by far the most common option on this route: San Francisco International Airport (SFO).

• What is the time difference between Toronto and San Francisco?

  The time difference between San Francisco and Toronto is 3h.

• How can I change or cancel my flight ticket from Toronto to San Francisco?

  Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.