$157 Cheap Flights from San Francisco (SFO) to Toronto (YTO)

View $157 flight on Thu, Sep 4, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $157 for one-way flights and $345 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sat, Sep 27 - Thu, Oct 2
SFO
San Francisco
YYZ
Toronto
$345 Roundtrip, just found
$345
Roundtrip
just found
Select Air Canada flight, departing Sat, Sep 27 from San Francisco to Toronto, returning Thu, Oct 2, priced at $345 just found
WestJet
Wed, Oct 15 - Wed, Oct 22
SFO
San Francisco
YYZ
Toronto
$346 Roundtrip, just found
$346
Roundtrip
just found
Select WestJet flight, departing Wed, Oct 15 from San Francisco to Toronto, returning Wed, Oct 22, priced at $346 just found
Porter Airlines
Mon, Sep 29 - Sat, Oct 4
SFO
San Francisco
YYZ
Toronto
$347 Roundtrip, just found
$347
Roundtrip
just found
Select Porter Airlines flight, departing Mon, Sep 29 from San Francisco to Toronto, returning Sat, Oct 4, priced at $347 just found
Air Canada
Sat, Sep 27 - Thu, Oct 2
SFO
San Francisco
YYZ
Toronto
$350 Roundtrip, just found
$350
Roundtrip
just found
Select Air Canada flight, departing Sat, Sep 27 from San Francisco to Toronto, returning Thu, Oct 2, priced at $350 just found
WestJet
Wed, Oct 22 - Mon, Oct 27
SFO
San Francisco
YYZ
Toronto
$351 Roundtrip, just found
$351
Roundtrip
just found
Select WestJet flight, departing Wed, Oct 22 from San Francisco to Toronto, returning Mon, Oct 27, priced at $351 just found
Air Canada
Thu, Sep 4 - Mon, Sep 8
SFO
San Francisco
YYZ
Toronto
$352 Roundtrip, just found
$352
Roundtrip
just found
Select Air Canada flight, departing Thu, Sep 4 from San Francisco to Toronto, returning Mon, Sep 8, priced at $352 just found
WestJet
Sat, Aug 30 - Fri, Sep 5
SFO
San Francisco
YYZ
Toronto
$353 Roundtrip, just found
$353
Roundtrip
just found
Select WestJet flight, departing Sat, Aug 30 from San Francisco to Toronto, returning Fri, Sep 5, priced at $353 just found
Air Canada
Mon, Sep 8 - Mon, Sep 15
SFO
San Francisco
YYZ
Toronto
$357 Roundtrip, found 1 hour ago
$357
Roundtrip
found 1 hour ago
Select Air Canada flight, departing Mon, Sep 8 from San Francisco to Toronto, returning Mon, Sep 15, priced at $357 found 1 hour ago
Alaska Airlines
Tue, Sep 16 - Sun, Sep 21
SFO
San Francisco
YYZ
Toronto
$361 Roundtrip, just found
$361
Roundtrip
just found
Select Alaska Airlines flight, departing Tue, Sep 16 from San Francisco to Toronto, returning Sun, Sep 21, priced at $361 just found
Delta
Wed, Oct 15 - Mon, Oct 20
SFO
San Francisco
YYZ
Toronto
$367 Roundtrip, just found
$367
Roundtrip
just found
Select Delta flight, departing Wed, Oct 15 from San Francisco to Toronto, returning Mon, Oct 20, priced at $367 just found

Find the cheapest month to fly from San Francisco (SFO) to Toronto (YTO)

June is typically the cheapest month to fly

From $245 - $384 per traveler.

Graph displaying average flight prices per month

Alternative airports near Toronto

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to John C. Munro Hamilton Intl. YHM. Average driving time to city center is 1 hour 0 minutes. Flights from $629
YHM
John C. Munro Hamilton Intl.
Average driving time to city center1 h 0 min
Flights from $629
Select flight to Region of Waterloo Intl. YKF. Cheapest option available. Average driving time to city center is 1 hour 13 minutes. Flights from $584
YKF
Region of Waterloo Intl.
Cheapest
Average driving time to city center1 h 13 min
Flights from $584
Flights from San Francisco (SFO) to Toronto (YYZ)
Origin airport
San Francisco Intl.
Destination airport
Pearson Intl.
Roundtrip price
$344
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 September. 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 $157 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 is a flight from San Francisco Airport to Toronto (YTO-All Airports)?
The lowest price advertised for a round-trip flight from San Francisco Intl. Airport (SFO) to Toronto (YTO-All Airports) is $345. But you better act quick. This price is based on fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from San Francisco Airport to Toronto (YTO-All Airports)?
Most flights can be canceled online, but each airline has its own terms and conditions. If you do decide to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from San Francisco Intl. Airport (SFO) to Toronto (YTO-All Airports) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for San Francisco Intl. Airport (SFO) to Toronto (YTO-All Airports) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from SFO to Toronto (YTO-All Airports)?
You'll be in the air for a while, as the flight distance from San Francisco Airport to Toronto (YTO-All Airports) is 2237 mi. Create a playlist of your favorite podcasts before leaving home to stay entertained during the journey.
Which airlines fly direct from SFO to Toronto (YTO-All Airports)?
One airline that flies from SFO to Toronto (YTO-All Airports) is Air Canada (AC). It offers 91 monthly flights. United Airlines (UA) is another popular choice. It offers 30 flights each month. Between these two airlines, you'll be able to find a good deal from San Francisco to Ontario.
Are San Francisco Airport to Toronto (YTO-All Airports) flight tickets cheaper when they're purchased at the last minute?
It is possible to get a fantastic last-minute deal from SFO to Toronto (YTO-All Airports), but there's no guarantee. As many airlines publish prices up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to pounce when you spot a bargain. Expedia compares carrier prices and updates flight deals regularly, so you can rest assured you're always seeing the latest offers.

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*Available to One Key members.