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 $376 and $554 in September. The cheapest round-trip price found within the last 3 days was $252 on Multiple Airlines (Sep 30-Oct 30).

How long is the flight from San Francisco to Toronto?

WestJet, Air Canada, and Porter Airlines can get you from San Francisco to Toronto in just under 4h 57m. Your travel time can differ by up to 3h 53m. There are 2253 mi between San Francisco and Toronto. Both multi-stop and nonstop flights can be found to your destination and back.

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

Our cheapest airline available from San Francisco to Toronto is Frontier. Our recent data shows that you can find tickets from as low as $36 on this airline. Additional options worth looking into are Porter Airlines and Air Transat, starting at $165 and $192 round-trip. You may be able to fly from San Francisco to Toronto for 91% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from San Francisco to Toronto one-way?

The cheapest airlines for a one-way flight from San Francisco to Toronto are WestJet ($130), Air Canada ($169), and Delta ($171).

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 Wednesday 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 (25 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (22 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 $1,168, our data shows the cheapest flight currently is $158. When looking at the most popular route, (San Francisco - Toronto Pearson Intl), you can expect to pay $208 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: Porter Airlines (79%), Air Transat (79%), Air Canada (68%).

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 time of day to fly from SFO to YTO?

Unlike in the morning, when flights are generally more expensive, you can save up to 45% 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 24 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.

$90+ Flights from San Francisco to Toronto

Round-trip from	$252 (Kiwi.com)
One-way from	$90 (Mytrip)
Popular in	December
Cheapest in	April
Average price	$450
Good round-trip deal	$391 or less
Good one-way deal	$215 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$165	Average$393	FlexibilityNo cancel fee	On-time52%
Air Transat	Cheapest$192	Average$410	FlexibilityNo cancel fee	On-time50%
Delta	Cheapest$197	Average$543	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$199	Average$498	FlexibilityNo cancel fee	On-time67%
WestJet	Cheapest$216	Average$311	FlexibilityNo cancel fee	On-time60%
United Airlines	Cheapest$355	Average$564	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$403	Average$556	FlexibilityNo cancel fee	On-time71%

$90+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Francisco to Toronto with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Cheap flight deals from San Francisco to Toronto

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from San Francisco to Toronto

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 September 17, 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 September 17, 2025.

Cheapflights Fare Finder

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

Cheapflights partnered with top experts to bring you the best recommendations for your San Francisco to Toronto trip

Airlines

Air Canada

Porter Airlines

Air Transat

Airports

SFO

YYZ

Our travel experts

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 September 12, 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 September 17, 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, Air Transat, 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?

How long is the flight from San Francisco to Toronto?

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

What are the cheapest airlines to fly from San Francisco to Toronto one-way?

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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Francisco to Toronto

See prices for flight routes from nearby airports that may be better suited for you.

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 September 17, 2025.