Cheap flights from Toronto to San Francisco from C$ 230

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 14/4. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — SFO
14 Apr — 21 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Toronto to San Francisco are usually found in April or May, booked 83 days in advance, depart on a Friday or Thursday and return on a Thursday

Cheap flight deals from Toronto to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from Toronto to San Francisco
Explore the most affordable flight options available from Toronto to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 March 2026.

Fri 1/56:15 a.m.
YYZ
-
SFO
1 stop8h 45m
WestJet
Thu 7/51:00 p.m.
SFO
-
YYZ
1 stop9h 05m
WestJet
Deal found 11/3C$ 388
Wed 29/46:15 a.m.
YYZ
-
SFO
1 stop8h 45m
WestJet
Mon 4/56:00 a.m.
SFO
-
YYZ
2 stops12h 35m
WestJet
Deal found 12/3C$ 392
Wed 20/512:40 p.m.
YYZ
-
SFO
2 stops12h 15m
WestJet
Thu 4/66:00 a.m.
SFO
-
YYZ
2 stops10h 55m
WestJet
Deal found 13/3C$ 394
Sun 3/56:15 a.m.
YYZ
-
SFO
1 stop8h 45m
WestJet
Mon 11/56:00 a.m.
SFO
-
YYZ
1 stop8h 10m
WestJet
Deal found 14/3C$ 395
Tue 5/56:15 a.m.
YYZ
-
SFO
1 stop8h 45m
WestJet
Tue 12/56:00 a.m.
SFO
-
YYZ
2 stops10h 55m
WestJet
Deal found 11/3C$ 396
Mon 11/53:50 p.m.
YYZ
-
SFO
1 stop9h 05m
WestJet
Sat 16/51:00 p.m.
SFO
-
YYZ
1 stop9h 05m
WestJet
Deal found 11/3C$ 398
Tue 14/45:50 a.m.
YHM
-
SFO
1 stop9h 20m
WestJet
Fri 8/56:00 a.m.
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 12/3C$ 399
Thu 9/49:50 a.m.
YYZ
-
SFO
Nonstop5h 55m
Porter Airlines
Wed 15/41:45 p.m.
SFO
-
YYZ
Nonstop4h 57m
Porter Airlines
Deal found 11/3C$ 399
Thu 16/49:50 a.m.
YYZ
-
SFO
Nonstop5h 55m
Porter Airlines
Wed 22/41:45 p.m.
SFO
-
YYZ
Nonstop4h 57m
Porter Airlines
Deal found 12/3C$ 401
Fri 1/56:15 a.m.
YYZ
-
SFO
1 stop8h 45m
WestJet
Mon 4/51:00 p.m.
SFO
-
YYZ
1 stop9h 05m
WestJet
Deal found 13/3C$ 402
Thu 21/512:40 p.m.
YYZ
-
SFO
2 stops12h 15m
WestJet
Mon 25/56:00 a.m.
SFO
-
YYZ
2 stops12h 35m
WestJet
Deal found 11/3C$ 403
Thu 28/512:40 p.m.
YYZ
-
SFO
2 stops12h 15m
WestJet
Sun 31/56:05 p.m.
SFO
-
YYZ
1 stop9h 50m
WestJet
Deal found 11/3C$ 405

Find flight deals from Toronto to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Toronto (YTO) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 March 2026.

Round-trip from

C$ 388

One-way from

C$ 230

Popular in

December

Cheapest in

April

Average price

C$ 545

Good round-trip deal

C$ 575 or less

Good one-way deal

C$ 509 or less
WestJet
  • WestJet
  • 1/5-7/5
  • 2 total stops
  • 17h 50m total
  • Toronto to San Francisco
WestJet
  • WestJet
  • 14/4
  • 1 total stop
  • 9h 20m total
  • Toronto to San Francisco
Highest demand for flights based on searches. 3% potential increase in price (C$ 26 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease (C$ 15 potential savings vs. average RT price).
Average for round-trip flights in March 2026
Price to beat on a round-trip flight from Toronto (YTO) to San Francisco.
Price to beat on a one-way flight from Toronto (YTO) to San Francisco.

Cheapflights Fare Finder

 
Customize your flight search to find flights from Toronto to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 15 March 2026.
Use the filters below to find and compare flights from Toronto to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Fri 8/5

6:10 p.m.-12:00 p.m.

1 stop20h 50m

San Francisco

Tue 12/5

6:00 a.m.-5:15 p.m.

1 stop8h 15m

C$ 445

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Sun 10/5

6:10 p.m.-9:55 p.m.

1 stop30h 45m

San Francisco

Sat 16/5

6:00 a.m.-5:15 p.m.

1 stop8h 15m

C$ 465

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Tue 12/5

6:10 p.m.-12:00 p.m.

1 stop20h 50m

San Francisco

Tue 19/5

6:00 a.m.-5:15 p.m.

1 stop8h 15m

C$ 465

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Sat 2/5

6:10 p.m.-9:55 p.m.

1 stop30h 45m

San Francisco

Mon 11/5

6:00 a.m.-5:15 p.m.

1 stop8h 15m

C$ 479

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Fri 1/5

8:40 p.m.-12:00 p.m.

1 stop18h 20m

San Francisco

Mon 4/5

6:00 a.m.-7:50 p.m.

1 stop10h 50m

C$ 486
Quickest round-trip

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Tue 12/5

9:45 a.m.-12:20 p.m.

Nonstop5h 35m

San Francisco

Wed 13/5

1:20 p.m.-9:25 p.m.

Nonstop5h 05m

C$ 491

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Tue 12/5

5:16 p.m.-8:09 p.m.

Nonstop5h 53m

San Francisco

Wed 13/5

6:45 a.m.-9:32 p.m.

1 stop11h 47m

C$ 514

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Fri 1/5

6:30 a.m.-9:23 a.m.

Nonstop5h 53m

San Francisco

Sat 16/5

11:56 p.m.-9:54 a.m.

1 stop6h 58m

C$ 514

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Sat 6/6

6:10 p.m.-12:00 p.m.

1 stop20h 50m

San Francisco

Sun 14/6

6:00 a.m.-5:15 p.m.

1 stop8h 15m

C$ 516

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Sat 4/4

6:30 a.m.-9:23 a.m.

Nonstop5h 53m

San Francisco

Fri 10/4

7:00 p.m.-9:54 a.m.

1 stop11h 54m

C$ 519

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Toronto to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Toronto with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Toronto to San Francisco

How far ahead should I book a flight from Toronto to San Francisco?

Use this chart to determine the optimal time to book a round-trip flight from Toronto to San Francisco. Price data was last updated on 6 March 2026.

The price you pay for your flight from Toronto to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 83 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 Toronto to San Francisco?

Currently, November is the cheapest month in which you can book a flight from Toronto to San Francisco (average of C$ 247). Flying from Toronto to San Francisco in December is currently the most expensive (average of C$ 347). 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 time of day to fly from YTO to SFO?

Find hourly flight availability from Toronto to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 March 2026.

A simple way to save on the total cost of your ticket is to fly from Toronto to San Francisco at noon. If you’re flexible enough to do this you can expect to save up to 52% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Toronto to San Francisco?

Use this chart to determine the cheapest time to fly round-trip from Toronto to San Francisco. Price data was last updated on 12 March 2026.

Travelers seeking maximum savings on their Toronto to San Francisco flight should consider departing on Thursday at noon when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Toronto to San Francisco

Explore weekly flight availability from Toronto to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 March 2026.

The most flights from YTO to SFO are scheduled on a Tuesday (21 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (15 on average).

How much does it cost to fly round-trip from Toronto to San Francisco?

What’s the top layover airport for flights from Toronto to San Francisco?

Share of one-stop round-trip flights from Toronto to San Francisco chosen by Cheapflights users in the past 12 months, using the same layover each way.

Calgary (YYC) – chosen by Cheapflights users on 86% of one-stop itineraries from Toronto to San Francisco on Cheapflights.

What’s the cheapest layover airport for flights from Toronto to San Francisco?

Average round-trip fare for 1-stop flights from Toronto to San Francisco, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Calgary (YYC) is the most affordable 1-stop option, with an average round-trip price of C$ 373.

What’s the fastest layover option from Toronto to San Francisco?

Shortest average travel time for 1-stop one-way flights from Toronto to San Francisco, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Detroit (DTW) have the shortest average one-way travel time for 1-stop routes: 7h 25m.

Which airport typically offers the quickest layover for flights from Toronto to San Francisco?

Average layover duration for 1-stop one-way flights from Toronto to San Francisco, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Detroit (DTW) offer the fastest connection on this route, with an average layover time of 0h 36m.

How often are flights from Toronto to San Francisco delayed?

About 26% of weekly flights between Toronto and San Francisco have experienced delays in the past year, with the average delay time being 161 minutes.

What is the most punctual flight time for Toronto to San Francisco flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Toronto to San Francisco flights?

Over the past year, United Airlines has had the lowest number of delays on this route, with just 16% of flights being delayed.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated 15 March 2026.
Get a feel of what it's like to fly with Porter Airlines,Air Transat, andUnited Airlines from Toronto to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.6

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.6

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.6

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.6

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.6

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.6

Entertainment

7.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

John,Mar 2026

YYZ - PVR

I'm 6ft 4in. The seats don't have enough room. But was a good flight.

Related info for your journey

Find useful and relevant information for your journey from Toronto to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports serve Toronto to San Francisco flights?

    You can fly to San Francisco from Pearson International Airport on the choice of many different flight options. You’ll be landing at the San Francisco International Airport. You can get there on a direct flight or one that has one or two stops on the way. The San Francisco International Airport is located in San Mateo County unincorporated. This is a major stopover point for flights heading to Asia and Europe from the US and Canada. It’s the biggest and busiest airport in the Bay Area. It’s the second busiest in the state of California.

  • Which airlines fly directly from Toronto to San Francisco?

    The airlines that fly direct for this route are Air Canada and United. The flight is a little more than five and a half hours. You can try to save a little money sometimes by booking something with a stopover. Some of them don’t add much in terms of travel time.

  • What are the stopover options between Toronto to San Francisco?

    Most flights to San Francisco from Toronto have one stop. Delta makes stops in Minneapolis sometimes, and often in Detroit. Most of the stopovers only add about two and a half hours of travel time to your trip. You could also see stops in Atlanta with Delta. WestJet stops in Calgary for a few hours so your trip ends up being 10 to 11 hours long. American Airlines stops in Charlotte or Chicago usually. You could also see stopovers in Dallas or Philadelphia.

  • Do I need a passport or a visa to fly from Toronto to San Francisco?

    You do need your passport to fly to San Francisco. This is an international flight as you’re crossing the border to the US. You will not need a visa, however, unless you are going to work or study. You also can’t invest in anything like real estate if you don’t have a visa.

  • What airport do you fly into for flights to San Francisco from Toronto?

    If you book a flight to San Francisco from Toronto, you will be flying to San Francisco, which is the city’s only airport. San Francisco (SFO) is located 19.0 km from the centre of San Francisco. There are 18 flights from Toronto to San Francisco per day from 8 different airlines.

  • How long is the flight from Toronto to San Francisco?

    Airlines like WestJet, Porter Airlines, and United Airlines fly from Toronto to San Francisco in about 5h 35m. The time it takes to get you to your destination can typically vary by up to 15h 15m. Airlines will cover a distance of 3626 km. Both multi-stop and direct flights can be found to your destination and back.

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

    According to our current data, Flair Airlines (C$ 115), American Airlines (C$ 255), and Delta (C$ 257) offers the cheapest pricing from Toronto to San Francisco. Users have found that Flair Airlines is 78% cheaper than the other options available to this destination.

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

    The cheapest airlines for a one-way flight from Toronto to San Francisco are WestJet (C$ 176), Porter Airlines (C$ 207), and Air Transat (C$ 223).

  • What are the most popular routes from Toronto to San Francisco?

  • What are the most reliable airlines from Toronto to San Francisco?

    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 Toronto to San Francisco on time: American Airlines (57%), Porter Airlines (57%), Air Transat (57%).

  • What are the cheapest flights from Toronto to San Francisco?

    While on average a flight from Toronto to San Francisco is generally C$ 1,691, our data shows the cheapest flight currently is C$ 270. When looking at the most popular route, (Toronto Pearson Intl - San Francisco), you can expect to pay C$ 399 for that flight.

  • Can I find deals for flights from Toronto to San Francisco that include hotel bookings?

    Yes. In addition to deals on Toronto to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Toronto to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Toronto to San Francisco.

  • Can I find deals for business class flights from Toronto to San Francisco?

    Yes. Cheapflights offers flight deals from Toronto to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Toronto to San Francisco?

    Currently, November is the cheapest month in which you can book a flight from Toronto to San Francisco (average of C$ 247). Flying from Toronto to San Francisco in December is currently the most expensive (average of C$ 347). 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.

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Burlingame
South San Francisco
Scotts Valley
Novato
Santa Clara
Vallejo

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Fly from Toronto to San Francisco on these airlines

Choose from the following airlines for your flight from Toronto to San Francisco. Flights are based on user searches made on Cheapflights and were last updated on 15 March 2026.

Top 8 airlines flying from Toronto to San Francisco

Discover the top 8 airlines that operate flights from Toronto to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 15 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Flair AirlinesCheapestC$ 115AverageC$ 470FlexibilityNo cancel feeOn-timeN/A
Search Flair Airlines flights
American AirlinesCheapestC$ 255AverageC$ 659FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapestC$ 257AverageC$ 475FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
WestJetCheapestC$ 283AverageC$ 372FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 308AverageC$ 474FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 373AverageC$ 524FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air TransatCheapestC$ 376AverageC$ 545FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapestC$ 434AverageC$ 583FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Toronto to San Francisco?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Toronto to San Francisco. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Toronto to San Francisco?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Toronto to San Francisco for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Toronto to San Francisco with no change fees?

Yes, we can. To see specific flights from Toronto to San Francisco with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Toronto to San Francisco become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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