How much does it cost to fly round-trip from San Francisco to Toronto?

Airfare is below average for this route at the moment. San Francisco to Toronto flights typically cost between $385 and $614 in September. The cheapest round-trip price found within the last 3 days was $235 on Multiple Airlines (Sep 4-Sep 10).

What are the cheapest airlines flying from San Francisco to Toronto round-trip?

Our cheapest airline available from San Francisco to Toronto is WestJet. Our recent data shows that you can find tickets from as low as $287 on this airline. An additional option worth looking into is Air Canada, starting at $346. You may be able to fly from San Francisco to Toronto for 34% less than the average price by searching for these airlines.

How far ahead should I book a flight from San Francisco to Toronto?

The price you pay for your flight from San Francisco to Toronto may vary depending on when you book. For the best chance of a lower fare, look to book 10 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from San Francisco to Toronto?

Currently, January is the cheapest month in which you can book a flight from San Francisco to Toronto (average of $243). Flying from San Francisco to Toronto in August is currently the most expensive (average of $348). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from San Francisco to Toronto?

Travelers seeking maximum savings on their San Francisco to Toronto flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Francisco to Toronto

The most flights from SFO to YTO are scheduled on a Monday (22 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (17 on average).

In terms of precipitation, rainfall in Toronto ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Toronto when rainfall is around 2.0 in.

If weather is an important factor for your trip to Toronto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

What are the most popular routes from San Francisco to Toronto?

Most travelers choose San Francisco - Toronto Pearson Intl, San Francisco - Toronto Island or San Francisco - Hamilton when deciding on the best route from San Francisco to Toronto.

What are the cheapest flights from San Francisco to Toronto?

While on average a flight from San Francisco to Toronto is generally $1,145, our data shows the cheapest flight currently is $166. When looking at the most popular route, (San Francisco - Toronto Pearson Intl), you can expect to pay $235 for that flight.

What are the most reliable airlines from San Francisco to Toronto?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Francisco to Toronto on time: Brussels Airlines (94%), Singapore Airlines (78%), Austrian Airlines (72%).

What are the most popular airlines that fly from San Francisco to Toronto?

Before booking your flight from San Francisco to Toronto check out the most popular airlines for this route: American Airlines, Air Canada or Delta.

What is the cheapest day to fly round-trip from San Francisco to Toronto?

Saturday flights are generally found to be more expensive for flights from San Francisco to Toronto. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Toronto.

How far in advance should I book a flight from San Francisco to Toronto?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 11 days in advance, which can save you up to 48% on flights from San Francisco to Toronto compared to booking the week you need them. Waiting 11 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $303. For sooner than that we have options available in the next 3 days from $476.

What is the cheapest month to fly from San Francisco to Toronto?

Our data shows that April tends to be the cheapest month to fly to Toronto from San Francisco. Users have commonly found prices around $435 for the month, but tickets can be as low as $155. Due to multiple factors, prepare for potentially higher prices in December.

What is the cheapest time of day to fly from SFO to YTO?

Unlike in the morning, when flights are generally more expensive, you can save up to 46% on flights from San Francisco to Toronto by exploring options for tickets at noon.

What airport do you fly from for flights from San Francisco to Toronto?

San Francisco (SFO), located 11.8 mi from the city center, is the airport you fly out of when you book flights from San Francisco to Toronto. 8 airlines have flights from San Francisco to Toronto on a regular basis. Booking flights from San Francisco to Toronto should not be difficult; the airport handles an average of 19 outbound flights to Toronto per day.

Can I find deals for flights from San Francisco to Toronto that include hotel bookings?

Yes. In addition to deals on San Francisco to Toronto flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from San Francisco to Toronto?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Toronto.

Can I find deals for business class flights from San Francisco to Toronto?

Yes. Cheapflights offers flight deals from San Francisco to Toronto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$97+ Flights from San Francisco to Toronto

Round-trip from	$235 (Trip.com)
One-way from	$97 (Trip.com)
Popular in	December
Cheapest in	April
Average price	$483
Good round-trip deal	$453 or less
Good one-way deal	$187 or less

PorterReserve offers extra legroom with 36 inches and premium snacks, ideal for longer flights.

Enjoy free Wi-Fi and streaming on your device during flights, enhancing your travel experience.

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$36	Average$81	FlexibilityNo cancel fee	On-time62%
Porter Airlines	Cheapest$157	Average$394	FlexibilityNo cancel fee	On-time52%
Air Transat	Cheapest$194	Average$410	FlexibilityNo cancel fee	On-time50%
Delta	Cheapest$197	Average$540	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$200	Average$505	FlexibilityNo cancel fee	On-time67%
WestJet	Cheapest$219	Average$311	FlexibilityNo cancel fee	On-time60%
United Airlines	Cheapest$355	Average$574	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$403	Average$541	FlexibilityNo cancel fee	On-time71%

$97+ Cheap flights from San Francisco (SFO) to Toronto (YTO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from San Francisco to Toronto are usually found in April or February, booked 10 days in advance, depart on a Wednesday or Tuesday and return on a Friday

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Cheapest flights from San Francisco to TorontoExplore the most affordable flight options available from San Francisco to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 7, 2025.

Explore the most affordable flight options available from San Francisco to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 7, 2025.

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Use the filters below to find and compare flights from San Francisco to Toronto that are best for you.

The best insider tips for San Francisco to Toronto flights

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Best time to book a flight from San Francisco to Toronto

Have a flexible travel schedule? Discover the best time to fly to Toronto from San Francisco with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Toronto

How far ahead should I book a flight from San Francisco to Toronto?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Toronto. Price data was last updated on August 1, 2025.

What is the cheapest month to book a flight from San Francisco to Toronto?

What is the cheapest time of day to fly from SFO to YTO?

Find hourly flight availability from San Francisco to Toronto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 7, 2025.

What is the cheapest day to fly from San Francisco to Toronto?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Toronto. Price data was last updated on December 16, 2024.

Weekly flight availability from San Francisco to Toronto

How much does it cost to fly round-trip from San Francisco to Toronto?

Reviews of airlines servicing Toronto

Read through reviews of airlines operating flights from San Francisco to Toronto, such as Porter Airlines, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Toronto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from San Francisco to Toronto?

What are the cheapest airlines flying from San Francisco to Toronto round-trip?

What are the most popular routes from San Francisco to Toronto?

What are the most reliable airlines from San Francisco to Toronto?

What are the cheapest flights from San Francisco to Toronto?

Can I find deals for flights from San Francisco to Toronto that include hotel bookings?

How can I find direct flights from San Francisco to Toronto?

Can I find deals for business class flights from San Francisco to Toronto?

What is the cheapest month to book a flight from San Francisco to Toronto?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Francisco to Toronto

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Top 8 airlines flying from San Francisco to Toronto

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Cheapest flights from San Francisco to Toronto
Explore the most affordable flight options available from San Francisco to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 7, 2025.