Cheap Flights from Toronto to San Francisco International

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Find the cheapest month or even day of the year to fly to San Francisco International

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Flight deals from Toronto to San Francisco International Airport

Looking for a cheap last-minute deal or the best return flight from Toronto to San Francisco International Airport? If you want to travel next month, return fares start from R 4,446. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Toronto to San Francisco International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Toronto to San Francisco International flights are currently cheapest in May.

Direct flights from Toronto to San Francisco International

Toronto to San Francisco: Flight information

The things to know before you go.
Cheapest flight foundR 2,430
Cheapest month to flyMay
Average flight time5 hrs, 42 mins
Most popular airlineUnited
Average flights per week164

Finding cheap flights from Toronto to San Francisco International: Frequently asked questions

The best price we found for a return flight from Toronto to San Francisco International is R 4,009. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
5 hours and 42 minutes is the average flight time from Toronto to San Francisco International.
United, Air Canada and Air New Zealand fly direct from Toronto to San Francisco International.
As of March 2026, there are 328 flights per week flying from Toronto to San Francisco International.
The cheapest month to fly from Toronto to San Francisco International is usually May.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Toronto to San Francisco International Airport on Wednesday, 13 May 2026.
Yes – the average flight time is 5 hours and 42 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Francisco is around 40 days in advance, so don’t leave your flight to the last minute.

Flying from Toronto to San Francisco International Airport (SFO): What you need to know

  • Toronto Pearson International Airport (YYZ) is Toronto's main airport. Explore your options for booking a flight from Toronto to San Francisco International Airport (SFO) taking off from here.

  • Take off on a direct Toronto to San Francisco International Airport flight and you'll be in the air for an average of 5 hours 40 minutes.

  • San Francisco is three hours behind Toronto. San Francisco International Airport is located in San Francisco, which is in the UTC-8 timezone.

  • The busiest route is from Toronto Pearson International Airport (YYZ) to San Francisco International Airport (SFO), with 46 direct services every week. If you want to be on your way right away, the earliest flight from YYZ to SFO is the 6:30am United Airlines option. If you prefer travelling later, the last departure is at 7:20pm with Air Canada.

  • Your flight from Toronto to SFO won't wait if you're late, so show up at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • Popular months like July or other busy periods mean bigger queues and potential delays. Stay ahead of the crowds by getting to the airport even earlier. Plan for at least four hours ahead of an international flight and two hours before domestic departures.

Airports in Toronto

Toronto Pearson International Airport (YYZ)

  • You can jump on a direct flight from Toronto to San Francisco International Airport (SFO) departing from Toronto Pearson International Airport (YYZ).

  • At YYZ, you can choose from various airlines that operate direct flights from Toronto to San Francisco International Airport, such as:

  • The majority of travellers prefer to fly with Air Canada between YYZ and SFO.

  • The carrier with the best on-time performance on this route is Porter Airlines (Canada) Ltd. Its services land as planned 71.93% of the time.

  • Travelling from central Toronto to YYZ takes about 25 minutes on public transport. If you ride-share, drive or get a taxi, you'll cover the 27 kilometres in 30 minutes or so, depending on traffic.

  • Want an easy start to your travels? Stay near Toronto Pearson International Airport. Whether you've booked an early flight from Toronto to San Francisco International Airport or want to avoid feeling rushed, these hotels are just the thing:

  • When it comes to Toronto Pearson International Airport's on-time performance, 68% of flights arrive within the scheduled time frame.

Billy Bishop Toronto City Airport (YTZ)

  • YTZ is about 3 kilometres from central Toronto. It takes 10 minutes or so to get to the airport if you're driving from the city centre. Public transport takes roughly 20 minutes.

  • Flying out early in the morning? Think about staying at one of these accommodation options near Billy Bishop Toronto City Airport the day before your Toronto to SFO flight:

  • 70% of all departures from Billy Bishop Toronto City Airport arrive according to schedule.

John C. Munro Hamilton International Airport (YHM)

  • YHM is around 72 kilometres from central Toronto. Driving from the city centre to the terminal takes about 1 hour 10 minutes. If you're thinking about using public transport, you can expect a journey of around 1 hour 50 minutes.

  • Make catching an early Toronto to San Francisco International Airport flight the easiest part of your journey. Book a room at one of these accommodation options close to John C. Munro Hamilton International Airport and get to your departure gate with plenty of time to spare:

  • Airports have an on-time performance rating that monitors how often flights arrive at their destinations without delays. At YHM, that rate is 68%.

About San Francisco International Airport (SFO)

  • If you're arriving on a late flight from Toronto to San Francisco International Airport, few things beat the convenience of staying close to the terminal. Grab your luggage from the carousel and then be showered and snoozing soon after at one of these options near SFO:

  • For the lowest price, book your ride around one week in advance of your Toronto to San Francisco International Airport flight.

Getting from San Francisco International Airport (SFO) to central San Francisco

  • From San Francisco International Airport, central San Francisco is around 21 kilometres away. It takes about 25 minutes to reach the city centre by car.

  • It takes roughly 35 minutes if you're travelling on public transport.

How to find the cheapest flights from Toronto to San Francisco International Airport (SFO)

  • R 2,430 is currently the lowest price for a one-way ticket from Toronto to San Francisco International Airport. A return flight starts from R 4,009. These prices may change based on availability.

  • Book one month before you want to fly. Pricing trends show that this is the ideal window for finding cheap flights from Toronto to SFO.

  • June is when you're most likely to find a good deal on a Toronto to San Francisco International Airport ticket. If you want to travel at a different time of year, the 'Whole month' tool will give you the lowest prices for every month.

  • There's no need to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll let you know when a better deal is available on plane tickets from Toronto to SFO.

  • Filters make it easier to save some cash on your flight from Toronto to San Francisco International Airport. Pick the departure times, airlines and number of stops that work for you. Then sort the results by 'Cheapest' to find the lowest price right away.

The best time to fly from Toronto to San Francisco International Airport (SFO)

  • July is when most people book flights from Toronto to San Francisco International Airport (SFO). Visit San Francisco in December if you'd rather avoid peak season.

  • The warmest month in San Francisco is September, with temperatures ranging between 12ºC (54ºF) and 24ºC (75ºF). Lock in your Toronto to SFO plane ticket then if that's your idea of comfortable weather.

  • January has temperatures of between 5ºC (41ºF) and 16ºC (61ºF). Search for cheap tickets from Toronto to San Francisco International Airport around that time if you want to travel in cooler conditions.

More about San Francisco

Explore more of the United States

  • Fresno is just one of the many cities in the United States waiting to be discovered once you've taken in the sights of San Francisco. Around 257 kilometres away to the east, its best attractions include Forestiere Underground Gardens, Shinzen Japanese Garden and Fresno Chaffee Zoo.

  • If you're looking to explore another well-known destination in the United States, head for Sacramento, roughly 129 kilometres northeast of San Francisco. California State Railroad Museum, Old Sacramento State Historic Park and Crocker Art Museum are among the biggest draws.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.