Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Toronto to San Francisco from C$ 173

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 24/6. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — SFO
22 Apr — 29 Apr1
1 adult

Cheapflights Tip: The best prices from Toronto to San Francisco are usually found in March or April, booked 67 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap 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 17 April 2025.

Round-trip from

C$ 294

One-way from

C$ 173

Popular in

December

Cheapest in

March

Average price

C$ 464

Good round-trip deal

C$ 464 or less

Good one-way deal

C$ 265 or less
7/5-13/5
  • 7/5-13/5
  • 4 total stops
  • 34h 10m total
  • Toronto to San Francisco
WestJet
  • WestJet
  • 24/6
  • 1 total stop
  • 9h 05m total
  • Toronto to San Francisco
Highest demand for flights based on searches. 1% potential increase in price (C$ 8 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease (C$ 16 potential savings vs. average RT price).
Average for round-trip flights in April 2025
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.

Find flight deals from Toronto to San Francisco

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 17 April 2025.

Wed 7/56:00 a.m.YHM - SFO
2 stops20h 59mMultiple Airlines
Tue 13/58:30 a.m.SFO - YHM
2 stops13h 11mMultiple Airlines
Deal found 15/4C$ 294
Thu 7/86:00 a.m.YHM - SFO
1 stop8h 56mWestJet
Mon 11/812:50 p.m.SFO - YHM
1 stop8h 51mWestJet
Deal found 16/4C$ 327
Thu 3/76:30 a.m.YYZ - SFO
1 stop10h 29mWestJet
Thu 10/77:30 a.m.SFO - YYZ
1 stop10h 24mWestJet
Deal found 15/4C$ 337
Sun 7/96:00 a.m.YKF - SFO
1 stop8h 54mWestJet
Wed 10/912:50 p.m.SFO - YKF
1 stop8h 55mWestJet
Deal found 17/4C$ 351
Tue 13/52:00 p.m.YYZ - SFO
2 stops26h 03mMultiple Airlines
Sat 24/55:45 a.m.SFO - YYZ
1 stop15h 27mMultiple Airlines
Deal found 16/4C$ 352
Thu 1/56:00 a.m.YKF - SFO
2 stops10h 59mMultiple Airlines
Thu 8/510:15 a.m.SFO - YKF
1 stop30h 10mMultiple Airlines
Deal found 17/4C$ 395
Thu 8/59:45 a.m.YYZ - SFO
Nonstop5h 45mPorter Airlines
Mon 12/51:30 p.m.SFO - YYZ
Nonstop4h 59mPorter Airlines
Deal found 16/4C$ 416
Sat 3/512:25 p.m.YTZ - SFO
1 stop10h 45mAir Canada
Sat 10/56:45 a.m.SFO - YTZ
2 stops11h 50mAir Canada
Deal found 16/4C$ 424
Wed 30/46:30 a.m.YYZ - SFO
Nonstop5h 49mAir Canada
Wed 7/59:50 a.m.SFO - YYZ
Nonstop5h 05mAir Canada
Deal found 16/4C$ 431
Thu 1/56:05 p.m.YYZ - SFO
1 stop10h 29mDelta
Mon 12/512:40 a.m.SFO - YYZ
1 stop8h 00mDelta
Deal found 16/4C$ 441
Wed 7/53:35 p.m.YTZ - SFO
2 stops20h 55mMultiple Airlines
Sun 11/510:15 a.m.SFO - YTZ
2 stops29h 48mMultiple Airlines
Deal found 16/4C$ 444
Mon 9/69:25 a.m.YKF - SFO
1 stop27h 05mFlair Airlines
Mon 16/610:15 a.m.SFO - YKF
1 stop17h 55mFlair Airlines
Deal found 17/4C$ 448

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 17 April 2025.
Use the filters below to find and compare flights from Toronto to San Francisco that are best for you.

Fly from

Toronto

Fly to

San Francisco

Route

Depart

Return

Price

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Wed 7/5

6:00 a.m.-11:59 p.m.

2 stops20h 59m

San Francisco

Tue 13/5

8:30 a.m.-12:41 a.m.

2 stops13h 11m

C$ 294

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Thu 7/8

6:00 a.m.-11:56 a.m.

1 stop8h 56m

San Francisco

Mon 11/8

12:50 p.m.-12:41 a.m.

1 stop8h 51m

C$ 327

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Sun 7/9

6:00 a.m.-11:54 a.m.

1 stop8h 54m

San Francisco

Wed 10/9

12:50 p.m.-12:45 a.m.

1 stop8h 55m

C$ 351

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Sat 24/5

11:00 a.m.-5:15 p.m.

1 stop9h 15m

San Francisco

Sun 1/6

6:05 p.m.-6:12 a.m.

1 stop9h 07m

C$ 351

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Tue 13/5

2:00 p.m.-1:03 p.m.

2 stops26h 03m

San Francisco

Sat 24/5

5:45 a.m.-12:12 a.m.

1 stop15h 27m

C$ 352

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Thu 1/5

6:00 a.m.-1:59 p.m.

2 stops10h 59m

San Francisco

Thu 8/5

10:15 a.m.-7:25 p.m.

1 stop30h 10m

C$ 395

TorontoSan Francisco

YTZ - SFO

YTZSFO

Toronto Island

Mon 9/6

7:00 a.m.-9:30 a.m.

2 stops29h 30m

San Francisco

Mon 16/6

10:15 a.m.-7:27 p.m.

2 stops30h 12m

C$ 416

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Thu 1/5

9:45 a.m.-12:30 p.m.

Nonstop5h 45m

San Francisco

Mon 5/5

1:30 p.m.-9:29 p.m.

Nonstop4h 59m

C$ 420

TorontoSan Francisco

YTZ - SFO

YTZSFO

Toronto Island

Sat 3/5

12:25 p.m.-8:10 p.m.

1 stop10h 45m

San Francisco

Sat 10/5

8:15 a.m.-9:35 p.m.

1 stop10h 20m

C$ 424

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Wed 4/6

7:00 p.m.-9:37 p.m.

Nonstop5h 37m

San Francisco

Thu 19/6

4:50 p.m.-12:44 a.m.

Nonstop4h 54m

C$ 427

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/4

Showing 1-10 of 34 results
1
2
3
4

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 11 April 2025.

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 46 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, January is the cheapest month in which you can book a flight from Toronto to San Francisco (average of C$ 276). Flying from Toronto to San Francisco in June is currently the most expensive (average of C$ 379). 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 17 April 2025.

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 54% on your trip compared to booking a flight in the afternoon.

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 16 December 2024.

Travelers seeking maximum savings on their Toronto to San Francisco flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday afternoons 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 17 April 2025.

The most flights from YTO to SFO are scheduled on a Wednesday (25 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 on average).

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 mm per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

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 17 April 2025.
Read reviews from past customers who have flown Alaska Airlines, Porter Airlines and Delta from Toronto to San Francisco. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Overall

8.0

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Overall

8.0

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
8.0
Very good

Overall

8.0

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Overall

8.0

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Overall

8.0

Food

7.1

Entertainment

7.1

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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 9 different airlines.

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

    According to our current data, WestJet (C$ 337), Porter Airlines (C$ 388), and Air Canada (C$ 424) offers the cheapest pricing from Toronto to San Francisco. Users have found that WestJet is 40% 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$ 173), Porter Airlines (C$ 222), and Air Canada (C$ 243).

  • 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: Porter Airlines (79%), Air Transat (79%), Air Canada (65%).

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

    While on average a flight from Toronto to San Francisco is generally C$ 1,658, our data shows the cheapest flight currently is C$ 208. When looking at the most popular route, (Toronto Pearson Intl - San Francisco), you can expect to pay C$ 268 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, January is the cheapest month in which you can book a flight from Toronto to San Francisco (average of C$ 276). Flying from Toronto to San Francisco in June is currently the most expensive (average of C$ 379). 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 Toronto?

Book flights to Toronto if you plan to visit one of these locations
Richmond
San Ramon
Newark
Alameda
Redwood City
Burlingame
South San Francisco
San Bruno
Scotts Valley
Novato
Belmont
Millbrae
Santa Clara
Vallejo

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 17 April 2025.

Top 9 airlines flying from Toronto to San Francisco

Discover the top 9 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 17 April 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 271AverageC$ 632FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 287AverageC$ 483FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 330AverageC$ 593FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 338AverageC$ 503FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Porter AirlinesCheapestC$ 356AverageC$ 674FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 414AverageC$ 515FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Alaska AirlinesCheapestC$ 424AverageC$ 625FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapestC$ 427AverageC$ 646FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJet EncoreCheapestC$ 646AverageC$ 703FlexibilityNo cancel feeOn-timeN/A
Search WestJet Encore 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!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.