CA $245 Cheap Flights from Toronto (YTO) to San Francisco (SFO)

View CA $245 flight on Fri, Oct. 3, 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 and start at CA $245 for one-way flights and CA $428 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Tue, Oct. 28 - Fri, Oct. 31
YYZ
Toronto
SFO
San Francisco
CA $428 Roundtrip, just found
CA $428
Roundtrip
just found
Select Air Canada flight, departing Tue, Oct. 28 from Toronto to San Francisco, returning Fri, Oct. 31, priced at CA $428 just found
Air Canada
Tue, Oct. 28 - Fri, Oct. 31
YYZ
Toronto
SFO
San Francisco
CA $428 Roundtrip, just found
CA $428
Roundtrip
just found
Select Air Canada flight, departing Tue, Oct. 28 from Toronto to San Francisco, returning Fri, Oct. 31, priced at CA $428 just found
Air Canada
Mon, Nov. 17 - Thu, Dec. 4
YYZ
Toronto
SFO
San Francisco
CA $429 Roundtrip, found 6 hours ago
CA $429
Roundtrip
found 6 hours ago
Select Air Canada flight, departing Mon, Nov. 17 from Toronto to San Francisco, returning Thu, Dec. 4, priced at CA $429 found 6 hours ago
Air Canada
Fri, Oct. 24 - Thu, Oct. 30
YYZ
Toronto
SFO
San Francisco
CA $429 Roundtrip, found 2 hours ago
CA $429
Roundtrip
found 2 hours ago
Select Air Canada flight, departing Fri, Oct. 24 from Toronto to San Francisco, returning Thu, Oct. 30, priced at CA $429 found 2 hours ago
Air Canada
Fri, Oct. 24 - Thu, Oct. 30
YTZ
Toronto
SFO
San Francisco
CA $430 Roundtrip, found 2 hours ago
CA $430
Roundtrip
found 2 hours ago
Select Air Canada flight, departing Fri, Oct. 24 from Toronto to San Francisco, returning Thu, Oct. 30, priced at CA $430 found 2 hours ago
Air Canada
Tue, Oct. 28 - Fri, Oct. 31
YYZ
Toronto
SFO
San Francisco
CA $431 Roundtrip, just found
CA $431
Roundtrip
just found
Select Air Canada flight, departing Tue, Oct. 28 from Toronto to San Francisco, returning Fri, Oct. 31, priced at CA $431 just found
Porter Airlines
Tue, Dec. 2 - Sat, Dec. 6
YYZ
Toronto
SFO
San Francisco
CA $439 Roundtrip, just found
CA $439
Roundtrip
just found
Select Porter Airlines flight, departing Tue, Dec. 2 from Toronto to San Francisco, returning Sat, Dec. 6, priced at CA $439 just found
Delta
Sat, Sep. 20 - Sun, Sep. 21
YYZ
Toronto
SFO
San Francisco
CA $439 Roundtrip, found 3 hours ago
CA $439
Roundtrip
found 3 hours ago
Select Delta flight, departing Sat, Sep. 20 from Toronto to San Francisco, returning Sun, Sep. 21, priced at CA $439 found 3 hours ago
American Airlines
Thu, Oct. 30 - Mon, Nov. 3
YYZ
Toronto
SFO
San Francisco
CA $446 Roundtrip, just found
CA $446
Roundtrip
just found
Select American Airlines flight, departing Thu, Oct. 30 from Toronto to San Francisco, returning Mon, Nov. 3, priced at CA $446 just found
WestJet
Sun, Oct. 19 - Tue, Oct. 28
YYZ
Toronto
SFO
San Francisco
CA $451 Roundtrip, just found
CA $451
Roundtrip
just found
Select WestJet flight, departing Sun, Oct. 19 from Toronto to San Francisco, returning Tue, Oct. 28, priced at CA $451 just found

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

May is typically the cheapest month to fly

From CA $295 - CA $710 per traveller.

Graph displaying average flight prices per month

Flight from Toronto to San Francisco (YYZ - SFO) route information
Origin airport
Pearson Intl.
Destination airport
San Francisco Intl.
Airlines serving
Air Canada, Air Transat, Alaska Airlines, American Airlines, Delta, Porter Airlines, United, WestJet
Roundtrip price
CA $427
Distance
3608 km

Ontario to San Francisco Flights

The easy way to book your flights from Toronto to San Francisco 

With Expedia, it’s simple to find and book flights to San Francisco from Toronto whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to San Francisco Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Toronto to San Francisco today, tomorrow, or this week.  

 

Save dollars with cheap flights from YTO-All Airports, YTO to San Francisco Intl., SFO 

Sort your search results by price to find great deals on your flight from Toronto to San Francisco—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to San Francisco from Toronto currently is just CA $428 rising to CA $451.  

Here are more money-saving tips: 

  • Fly in October when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to San Francisco  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to San Francisco from Toronto 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to San Francisco with Expedia today.

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 CA $428. 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 kilometers 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 travelers 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

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