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

View AU$255 flight on Sun, 24 Aug. 2025Opens in a new window

Popular airlines from Toronto to San Francisco, CA (SFO-San Francisco Intl.)

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

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Thu, 16 Oct. - Fri, 24 Oct.
YYZ
Toronto
SFO
San Francisco
AU$503 Return, found 3 hours ago
AU$503
Return
found 3 hours ago
Select WestJet flight, departing Thu, 16 Oct. from Toronto to San Francisco, returning Fri, 24 Oct., priced at AU$503 found 3 hours ago
WestJet
Wed, 10 Sep. - Wed, 17 Sep.
YYZ
Toronto
SFO
San Francisco
AU$515 Return, found 4 days ago
AU$515
Return
found 4 days ago
Select WestJet flight, departing Wed, 10 Sep. from Toronto to San Francisco, returning Wed, 17 Sep., priced at AU$515 found 4 days ago
WestJet
Sat, 30 Aug. - Sat, 6 Sep.
YYZ
Toronto
SFO
San Francisco
AU$517 Return, found 6 days ago
AU$517
Return
found 6 days ago
Select WestJet flight, departing Sat, 30 Aug. from Toronto to San Francisco, returning Sat, 6 Sep., priced at AU$517 found 6 days ago
WestJet
Fri, 17 Oct. - Fri, 24 Oct.
YYZ
Toronto
SFO
San Francisco
AU$518 Return, found 3 hours ago
AU$518
Return
found 3 hours ago
Select WestJet flight, departing Fri, 17 Oct. from Toronto to San Francisco, returning Fri, 24 Oct., priced at AU$518 found 3 hours ago
Air Canada
Mon, 24 Nov. - Sun, 30 Nov.
YTZ
Toronto
SFO
San Francisco
AU$537 Return, found 5 days ago
AU$537
Return
found 5 days ago
Select Air Canada flight, departing Mon, 24 Nov. from Toronto to San Francisco, returning Sun, 30 Nov., priced at AU$537 found 5 days ago
WestJet
Sat, 30 Aug. - Sat, 6 Sep.
YHM
Hamilton
SFO
San Francisco
AU$543 Return, found 6 days ago
AU$543
Return
found 6 days ago
Select WestJet flight, departing Sat, 30 Aug. from Hamilton to San Francisco, returning Sat, 6 Sep., priced at AU$543 found 6 days ago
Air Canada
Mon, 24 Nov. - Sun, 30 Nov.
YYZ
Toronto
SFO
San Francisco
AU$547 Return, found 5 days ago
AU$547
Return
found 5 days ago
Select Air Canada flight, departing Mon, 24 Nov. from Toronto to San Francisco, returning Sun, 30 Nov., priced at AU$547 found 5 days ago
American Airlines
Wed, 17 Dec. - Wed, 24 Dec.
YYZ
Toronto
SFO
San Francisco
AU$555 Return, found 3 days ago
AU$555
Return
found 3 days ago
Select American Airlines flight, departing Wed, 17 Dec. from Toronto to San Francisco, returning Wed, 24 Dec., priced at AU$555 found 3 days ago
Delta
Wed, 10 Sep. - Wed, 17 Sep.
YYZ
Toronto
SFO
San Francisco
AU$555 Return, found 4 days ago
AU$555
Return
found 4 days ago
Select Delta flight, departing Wed, 10 Sep. from Toronto to San Francisco, returning Wed, 17 Sep., priced at AU$555 found 4 days ago
Porter Airlines
Wed, 10 Sep. - Wed, 17 Sep.
YYZ
Toronto
SFO
San Francisco
AU$557 Return, found 4 days ago
AU$557
Return
found 4 days ago
Select Porter Airlines flight, departing Wed, 10 Sep. from Toronto to San Francisco, returning Wed, 17 Sep., priced at AU$557 found 4 days ago

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

May is typically the cheapest month to fly

From AU$327 - AU$789 per traveller.

Graph displaying average flight prices per month

Flight from Toronto to San Francisco route information
Origin airport
Pearson Intl.
Destination airport
San Francisco Intl.
Airlines serving
Air Canada, Alaska Airlines, American Airlines, Delta, Porter Airlines, United, WestJet
Return price
AU$503
Distance
3608 km

YTO to SFO Flights

Ready to get away? Use Expedia.com.au to book cheap flights from Ontario to San Francisco AU$503, and have leftover money to spare on adventures and activities while you’re in town. We have the world’s largest selection of flights, not to mention lower airfares than you’ll find anywhere else on the Internet.

Our user-friendly tools make it easier than ever to book YTO to SFO flights, even if you’re hoping to hop aboard one of the last-minute flights leaving today. So whether you seek a spontaneous trip to this city’s hottest attractions, or prefer to plan out every detail of your adventure ahead of time, Expedia.com.au is here to help you find exactly what you are interested in.

If you’re on the hunt for cheap flights to San Francisco from Ontario, you need not look any further. We make it simple for you to compare different airline carriers or choose the one that appeals to you most. We work with dozens of airlines in order to offer you incredible deals on business and personal travel. Start by searching through our selection of plane tickets today, and you’ll be in the sky before you know it.

Frequently asked questions

How much is a flight from Toronto (YTO-All Airports) to SFO?
Based on fares available within the last 7 days on Expedia for flights departing within the next year, round-trip flights from Toronto (YTO-All Airports) to San Francisco Intl. Airport (SFO) start from AU$503. Book ASAP to score the best price for your adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Toronto (YTO-All Airports) to San Francisco Airport?
We get that circumstances change unexpectedly, so we've made it as hassle-free as possible for you to cancel your flight online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from Toronto (YTO-All Airports) to San Francisco Intl. Airport (SFO) 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 Toronto (YTO-All Airports) to SFO flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Toronto (YTO-All Airports) to SFO?
Around 3 600 kilometres separates Ontario and San Francisco, so pack something to help you while away a couple of hours. That novel you're eager to read will be just the ticket.
Which airlines fly direct from Toronto (YTO-All Airports) to San Francisco Airport?
Air Canada (AC) is one of the top choices for travellers jetting between Toronto (YTO-All Airports) and San Francisco Intl. Airport (SFO). Choose from the 91 flights it offers on this route each month. Offering 30 flights a month along this route, United Airlines (UA) is another fantastic option.
Are Toronto (YTO-All Airports) to San Francisco Intl. Airport (SFO) flight tickets cheaper when they're purchased at the last minute?
Booking last minute from Toronto (YTO-All Airports) to San Francisco Intl. Airport (SFO) can be hit-or-miss. You may be able to find a bargain, but then again, you could miss out altogether! If you'd rather start your travel planning early, Expedia compares flight deals up to a year in advance. Just bear in mind that not all airlines advertise their prices so far in advance. Our top tip? Check back often as updates are made frequently.

Explore a world of travel with Expedia

Toronto Airports

Toronto

Pearson Intl. to San Francisco
AU$502.67

Hamilton

John C. Munro Hamilton Intl. to San Francisco
AU$542.93

Kitchener

*Available to Expedia members.