$145 Cheap Flights from San Francisco (SFO) to Toronto (YYZ)

View $145 flight on Sat, Aug 9, 2025Opens in a new window

Popular airlines from San Francisco Intl. Airport (SFO) to Toronto Pearson Intl. Airport (YYZ)

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Find available prices by choosing your travel dates.

Cheap Flights from San Francisco to Toronto (SFO-YYZ)

Prices were available within the past 7 days and start at $145 for one-way flights and $310 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Sun, Aug 10 - Mon, Aug 11
SFO
San Francisco
YYZ
Toronto
$310 Roundtrip, found 2 hours ago
$310
Roundtrip
found 2 hours ago
Select WestJet flight, departing Sun, Aug 10 from San Francisco to Toronto, returning Mon, Aug 11, priced at $310 found 2 hours ago
WestJet
Sun, Aug 10 - Mon, Aug 11
SFO
San Francisco
YYZ
Toronto
$319 Roundtrip, found 2 hours ago
$319
Roundtrip
found 2 hours ago
Select WestJet flight, departing Sun, Aug 10 from San Francisco to Toronto, returning Mon, Aug 11, priced at $319 found 2 hours ago
WestJet
Tue, Jul 29 - Wed, Jul 30
SFO
San Francisco
YYZ
Toronto
$321 Roundtrip, found 5 days ago
$321
Roundtrip
found 5 days ago
Select WestJet flight, departing Tue, Jul 29 from San Francisco to Toronto, returning Wed, Jul 30, priced at $321 found 5 days ago
WestJet
Mon, Jun 30 - Fri, Jul 18
SFO
San Francisco
YYZ
Toronto
$334 Roundtrip, found 1 day ago
$334
Roundtrip
found 1 day ago
Select WestJet flight, departing Mon, Jun 30 from San Francisco to Toronto, returning Fri, Jul 18, priced at $334 found 1 day ago
WestJet
Tue, Aug 12 - Wed, Aug 13
SFO
San Francisco
YYZ
Toronto
$334 Roundtrip, found 2 hours ago
$334
Roundtrip
found 2 hours ago
Select WestJet flight, departing Tue, Aug 12 from San Francisco to Toronto, returning Wed, Aug 13, priced at $334 found 2 hours ago
WestJet
Wed, Jun 25 - Fri, Sep 12
SFO
San Francisco
YYZ
Toronto
$335 Roundtrip, found 3 days ago
$335
Roundtrip
found 3 days ago
Select WestJet flight, departing Wed, Jun 25 from San Francisco to Toronto, returning Fri, Sep 12, priced at $335 found 3 days ago
Delta
Sat, Aug 16 - Tue, Sep 2
SFO
San Francisco
YYZ
Toronto
$341 Roundtrip, found 6 days ago
$341
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Aug 16 from San Francisco to Toronto, returning Tue, Sep 2, priced at $341 found 6 days ago
American Airlines
Wed, Jun 18 - Wed, Jul 16
SFO
San Francisco
YYZ
Toronto
$342 Roundtrip, found 6 hours ago
$342
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Wed, Jun 18 from San Francisco to Toronto, returning Wed, Jul 16, priced at $342 found 6 hours ago
Air Canada
Tue, Jun 17 - Wed, Jul 9
SFO
San Francisco
YYZ
Toronto
$395 Roundtrip, just found
$395
Roundtrip
just found
Select Air Canada flight, departing Tue, Jun 17 from San Francisco to Toronto, returning Wed, Jul 9, priced at $395 just found
United
Fri, Jun 13 - Sat, Jun 14
SFO
San Francisco
YYZ
Toronto
$444 Roundtrip, found 19 hours ago
$444
Roundtrip
found 19 hours ago
Select United flight, departing Fri, Jun 13 from San Francisco to Toronto, returning Sat, Jun 14, priced at $444 found 19 hours ago
Flights from San Francisco (SFO) to Toronto (YYZ)
Origin airport
San Francisco Intl.
Destination airport
Pearson Intl.
Airlines serving
Air Canada, Air Transat, Alaska Airlines, American Airlines, Delta, Porter Airlines, United, WestJet
Roundtrip price
$310
Distance
2255 mi

San Francisco to Toronto Flights

The cheapest times to fly from San Francisco to Toronto

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Francisco to Toronto are during the month of August. You can find some of the cheapest flights from San Francisco to Toronto with Expedia's search tool and vast selection of airlines.

The best time to book a flight from San Francisco to Toronto

Sunday is one of the best days to book for cheap flights from San Francisco to Toronto: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from San Francisco to Toronto

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Francisco to Toronto in 2025. You can also book with separate airlines for your outbound and return journeys, from $145 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Francisco to Toronto flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Francisco to Toronto airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from San Francisco Intl. Airport (SFO) to Pearson Intl. Airport (YYZ) cost?
Cheap return fares from San Francisco Intl. Airport (SFO) to Pearson Intl. Airport (YYZ) start at $364. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Air Canada and Porter Airlines flight leaving SFO on May 9 2025 and touching down at YYZ. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from SFO to YYZ?
The cheapest flights from SFO to YYZ are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from San Francisco Intl. Airport (SFO) to Pearson Intl. Airport (YYZ)?
Enjoy an uninterrupted journey to Pearson Intl. Airport (YYZ). 3 airlines offer nonstop flights from San Francisco Intl. Airport (SFO), including:

  • Air Canada
  • Porter Airlines
  • United Airlines

What is the cheapest airline that flies from SFO to YYZ?
At the moment, the cheapest carrier offering one-way flights from SFO to YYZ is Porter Airlines. You can book a seat on this route from $176. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SFO on July 2 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from San Francisco Intl. Airport (SFO) to Pearson Intl. Airport (YYZ)?
When jetting out of San Francisco Intl. Airport (SFO), you can pick from an average of 5 daily direct flights to Pearson Intl. Airport (YYZ).
What are the most popular departure times for flights from San Francisco Intl. Airport (SFO) to Pearson Intl. Airport (YYZ)?
Flights between SFO and YYZ are their busiest at 8 AM. If you’re after a quieter experience and possibly cheaper fares, choose a time outside the usual busy windows.
What day of the week has the most flights from SFO to YYZ?
Fly on a Friday if you’re after the largest selection of flights from San Francisco Intl. Airport (SFO) to Pearson Intl. Airport (YYZ).
What is the earliest flight from San Francisco Intl. Airport (SFO) to Pearson Intl. Airport (YYZ)?
Take the earliest flight at around 8:25AM UTC-8, departing from San Francisco Intl. Airport (SFO). You’ll be flying for about 4h 52m, arriving at Pearson Intl. Airport (YYZ) at approximately 4:17PM UTC-5.
How long does it take to fly from San Francisco Intl. Airport (SFO) to Pearson Intl. Airport (YYZ)?
It takes approximately 4 hours and 58 minutes to cover the 2,300 mi from SFO to YYZ.
What is the best time to fly from San Francisco Intl. Airport (SFO) to Pearson Intl. Airport (YYZ)?
To avoid potential delays on the San Francisco Intl. Airport (SFO) to Pearson Intl. Airport (YYZ) route, aim to travel before 3 PM. Later flights have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Toronto from San Francisco Intl. Airport (SFO)?
Browse your flight options from San Francisco Intl. Airport (SFO) to Pearson Intl. Airport (YYZ). This is the only Toronto airport you can touch down at if you’re taking a direct flight.
Is it cheaper to buy a plane ticket from San Francisco Intl. Airport (SFO) to Pearson Intl. Airport (YYZ) last-minute?
Last-minute bookings from SFO to YYZ are typically more expensive. To lock in the lowest rates, start searching for flights as early as possible. That being said, if you can play around with your travel dates, you may land a cheap fare right before you leave.
Is it cheaper to book a SFO to YYZ flight and hotel package?
You’ll generally save money by booking a SFO to YYZ flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s simple to manage everything in one place. After selecting your preferred accommodations and flights, consider other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from San Francisco Intl. Airport (SFO) to Pearson Intl. Airport (YYZ)?
In most instances, you can cancel or reschedule your SFO to YYZ flight. However, there may be additional charges, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline’s fees and policies on flight changes, or if you’d like more information, visit our Customer Service portal.

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*Available to One Key members.