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Cheap flights from Toronto to San Francisco from C$ 193

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 25/7. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — SFO
17 Jun — 24 Jun1
1 adult

Cheapflights Tip: The best prices from Toronto to San Francisco are usually found in April or March, 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 12 June 2025.

Round-trip from

C$ 323

One-way from

C$ 193

Popular in

December

Cheapest in

April

Average price

C$ 515

Good round-trip deal

C$ 592 or less

Good one-way deal

C$ 310 or less
WestJet
  • WestJet
  • 11/8-13/8
  • 2 total stops
  • 17h 47m total
  • Toronto to San Francisco
WestJet
  • WestJet
  • 15/8
  • 1 total stop
  • 8h 56m total
  • Toronto to San Francisco
Highest demand for flights based on searches. 4% potential increase in price (C$ 37 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease (C$ 18 potential savings vs. average RT price).
Average for round-trip flights in June 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 12 June 2025.

Mon 11/86:00 a.m.YHM - SFO
1 stop8h 56mWestJet
Wed 13/812:50 p.m.SFO - YHM
1 stop8h 51mWestJet
Deal found 10/6C$ 323
Wed 13/86:49 a.m.YYZ - SFO
1 stop10h 38mAmerican Airlines
Sat 16/812:45 a.m.SFO - YYZ
1 stop8h 45mAmerican Airlines
Deal found 12/6C$ 388
Sun 21/96:30 a.m.YYZ - SFO
1 stop10h 27mWestJet
Mon 6/107:30 a.m.SFO - YYZ
1 stop8h 22mWestJet
Deal found 10/6C$ 390
Thu 24/77:45 p.m.YKF - SFO
2 stops21h 14mWestJet
Sun 3/87:30 a.m.SFO - YKF
1 stop14h 16mWestJet
Deal found 10/6C$ 391
Sat 27/99:45 a.m.YYZ - SFO
Nonstop5h 38mMultiple Airlines
Sat 25/107:30 a.m.SFO - YYZ
1 stop8h 22mMultiple Airlines
Deal found 11/6C$ 398
Sat 22/113:25 p.m.YTZ - SFO
1 stop9h 12mAir Canada
Wed 3/128:40 a.m.SFO - YTZ
1 stop10h 10mAir Canada
Deal found 10/6C$ 410
Wed 9/78:25 p.m.YKF - SFO
1 stop16h 05mFlair Airlines
Wed 16/710:15 a.m.SFO - YKF
1 stop17h 55mFlair Airlines
Deal found 11/6C$ 416
Sun 23/113:00 p.m.YYZ - SFO
1 stop9h 37mAir Canada
Sat 29/118:40 a.m.SFO - YYZ
1 stop9h 05mAir Canada
Deal found 11/6C$ 420
Wed 29/1010:30 a.m.YYZ - SFO
Nonstop5h 52mPorter Airlines
Wed 5/111:30 p.m.SFO - YYZ
Nonstop5h 02mPorter Airlines
Deal found 11/6C$ 436
Tue 24/65:50 p.m.YYZ - SFO
1 stop9h 05mDelta
Fri 11/712:50 a.m.SFO - YYZ
1 stop8h 09mDelta
Deal found 10/6C$ 448
Fri 25/76:30 a.m.YYZ - SFO
Nonstop5h 37mUnited Airlines
Mon 4/811:55 p.m.SFO - YYZ
1 stop7h 03mUnited Airlines
Deal found 10/6C$ 506
Fri 11/79:25 a.m.YKF - SFO
1 stop27h 05mMultiple Airlines
Fri 18/712:50 p.m.SFO - YKF
1 stop8h 56mMultiple Airlines
Deal found 12/6C$ 518

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 12 June 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

Mon 11/8

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

1 stop8h 56m

San Francisco

Wed 13/8

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

1 stop8h 51m

C$ 323

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Wed 13/8

6:49 a.m.-2:27 p.m.

1 stop10h 38m

San Francisco

Sat 16/8

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

1 stop8h 45m

C$ 388

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Thu 24/7

10:25 p.m.-1:59 p.m.

2 stops18h 34m

San Francisco

Sun 3/8

7:30 a.m.-12:33 a.m.

2 stops14h 03m

C$ 390

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Thu 24/7

7:45 p.m.-1:59 p.m.

2 stops21h 14m

San Francisco

Sun 3/8

7:30 a.m.-12:46 a.m.

1 stop14h 16m

C$ 391

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Tue 8/7

8:05 p.m.-10:10 a.m.

1 stop17h 05m

San Francisco

Tue 15/7

7:30 a.m.-12:33 a.m.

2 stops14h 03m

C$ 401

TorontoSan Francisco

YTZ - SFO

YTZSFO

Toronto Island

Sat 22/11

3:25 p.m.-9:37 p.m.

1 stop9h 12m

San Francisco

Wed 3/12

8:40 a.m.-9:50 p.m.

1 stop10h 10m

C$ 410

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Wed 9/7

8:25 p.m.-9:30 a.m.

1 stop16h 05m

San Francisco

Wed 16/7

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

1 stop17h 55m

C$ 416

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Fri 29/8

8:05 a.m.-10:38 a.m.

Nonstop5h 33m

San Francisco

Mon 8/9

1:45 p.m.-9:40 p.m.

Nonstop4h 55m

C$ 425

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Wed 25/6

6:30 a.m.-1:15 p.m.

1 stop9h 45m

San Francisco

Fri 11/7

6:15 a.m.-9:59 p.m.

1 stop12h 44m

C$ 446

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Wed 18/6

9:45 a.m.-12:25 p.m.

Nonstop5h 40m

San Francisco

Wed 25/6

1:25 p.m.-9:29 p.m.

Nonstop5h 04m

C$ 461

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/6

Showing 1-10 of 32 results
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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 9 June 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 67 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 December is currently the most expensive (average of C$ 368). 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 12 June 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 Thursday 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 12 June 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 (20 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 12 June 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.

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
8.0
Very good

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 22 flights from Toronto to San Francisco per day from 8 different airlines.

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

    According to our current data, WestJet (C$ 323), American Airlines (C$ 394), and Flair Airlines (C$ 416) offers the cheapest pricing from Toronto to San Francisco. Users have found that WestJet is 39% 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$ 193), American Airlines (C$ 234), and Air Canada (C$ 237).

  • 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 (90%), Air Transat (90%), United Airlines (79%).

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

    While on average a flight from Toronto to San Francisco is generally C$ 2,331, our data shows the cheapest flight currently is C$ 245. When looking at the most popular route, (Toronto Pearson Intl - San Francisco), you can expect to pay C$ 338 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 December is currently the most expensive (average of C$ 368). 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
San Bruno
South San Francisco
Scotts Valley
Novato
Belmont
Millbrae
Santa Clara
Vallejo

Browse thousands of different options on Cheapflights for your next trip

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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 12 June 2025.

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 12 June 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 255AverageC$ 548FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 283AverageC$ 384FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 295AverageC$ 465FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 326AverageC$ 566FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 347AverageC$ 587FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 408AverageC$ 507FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
Alaska AirlinesCheapestC$ 418AverageC$ 640FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapestC$ 421AverageC$ 622FlexibilityNo 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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