Cheap flights from Toronto to San Francisco from C$ 161

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 13/1. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — SFO
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Toronto to San Francisco are usually found in April or March, booked 50 days in advance, depart on a Friday or Saturday and return on a Tuesday

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 12 December 2025.

Fri 12/129:45 a.m.YYZ - SFO
1 stop10h 06mMultiple Airlines
Tue 6/14:48 p.m.SFO - YYZ
2 stops23h 48mMultiple Airlines
Deal found 9/12C$ 520
Fri 12/129:45 a.m.YYZ - SFO
1 stop10h 06mMultiple Airlines
Wed 7/14:01 p.m.SFO - YYZ
2 stops28h 10mMultiple Airlines
Deal found 9/12C$ 521
Mon 15/129:35 a.m.YYZ - SFO
2 stops17h 17mMultiple Airlines
Thu 22/11:00 p.m.SFO - YYZ
1 stop8h 26mMultiple Airlines
Deal found 9/12C$ 527
Fri 12/129:45 a.m.YYZ - SFO
1 stop14h 40mMultiple Airlines
Thu 8/11:00 p.m.SFO - YYZ
2 stops13h 58mMultiple Airlines
Deal found 9/12C$ 528
Sat 13/127:55 p.m.YYZ - SFO
1 stop14h 53mMultiple Airlines
Thu 8/11:00 p.m.SFO - YYZ
2 stops13h 58mMultiple Airlines
Deal found 9/12C$ 532
Mon 15/1210:15 p.m.YYZ - SFO
2 stops21h 36mMultiple Airlines
Sat 28/210:15 a.m.SFO - YYZ
1 stop11h 25mMultiple Airlines
Deal found 12/12C$ 561
Sat 13/127:55 p.m.YYZ - SFO
1 stop14h 53mMultiple Airlines
Tue 6/110:45 p.m.SFO - YYZ
2 stops17h 51mMultiple Airlines
Deal found 9/12C$ 563
Mon 15/126:10 p.m.YHM - SFO
1 stop21h 02mWestJet
Thu 22/11:00 p.m.SFO - YHM
1 stop21h 22mWestJet
Deal found 9/12C$ 571
Fri 12/1212:30 p.m.YTZ - SFO
1 stop11h 52mAir Canada
Sun 14/128:25 a.m.SFO - YTZ
1 stop8h 30mAir Canada
Deal found 10/12C$ 611
Thu 18/123:30 p.m.YTZ - SFO
1 stop8h 52mAir Canada
Tue 6/18:25 a.m.SFO - YTZ
1 stop8h 30mAir Canada
Deal found 10/12C$ 731
Mon 15/123:30 p.m.YTZ - SFO
1 stop8h 52mAir Canada
Sat 24/18:25 a.m.SFO - YTZ
1 stop10h 10mAir Canada
Deal found 11/12C$ 778
Tue 30/126:45 a.m.YTZ - SFO
2 stops20h 42mMultiple Airlines
Fri 2/17:00 a.m.SFO - YTZ
1 stop11h 15mMultiple Airlines
Deal found 10/12C$ 852

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 12 December 2025.

Round-trip from

C$ 353

One-way from

C$ 161

Popular in

December

Cheapest in

April

Average price

C$ 661

Good round-trip deal

C$ 559 or less

Good one-way deal

C$ 318 or less
WestJet
  • WestJet
  • 22/1-25/1
  • 2 total stops
  • 46h 19m total
  • Toronto to San Francisco
WestJet
  • WestJet
  • 13/1
  • 1 total stop
  • 9h 27m total
  • Toronto to San Francisco
Highest demand for flights based on searches. 6% potential increase in price (C$ 45 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease (C$ 19 potential savings vs. average RT price).
Average for round-trip flights in December 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.

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 December 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

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Tue 10/2

6:20 a.m.-12:10 p.m.

1 stop8h 50m

San Francisco

Sun 3/5

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

1 stop8h 55m

C$ 374

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Tue 10/2

6:20 a.m.-12:10 p.m.

1 stop8h 50m

San Francisco

Mon 4/5

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

1 stop8h 55m

C$ 374

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Sat 24/1

7:00 p.m.-12:12 p.m.

1 stop20h 12m

San Francisco

Fri 30/1

1:00 p.m.-5:28 a.m.

1 stop13h 28m

C$ 381

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Thu 7/5

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

1 stop8h 54m

San Francisco

Sun 10/5

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

1 stop8h 55m

C$ 399

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Wed 29/4

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

1 stop8h 54m

San Francisco

Tue 5/5

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

1 stop8h 55m

C$ 399

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Sat 24/1

7:00 p.m.-12:12 p.m.

1 stop20h 12m

San Francisco

Sun 1/2

1:00 p.m.-5:29 a.m.

1 stop13h 29m

C$ 404

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Thu 22/1

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

1 stop21h 02m

San Francisco

Tue 27/1

1:00 p.m.-5:17 p.m.

1 stop25h 17m

C$ 405

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Sat 17/1

9:45 a.m.-12:38 p.m.

Nonstop5h 53m

San Francisco

Tue 20/1

1:40 p.m.-9:37 p.m.

Nonstop4h 57m

C$ 412

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Tue 10/2

6:20 a.m.-12:10 p.m.

1 stop8h 50m

San Francisco

Sat 2/5

7:30 a.m.-12:45 a.m.

1 stop14h 15m

C$ 412

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

Sat 7/2

4:45 p.m.-11:03 p.m.

1 stop9h 18m

San Francisco

Thu 12/2

6:30 a.m.-3:35 p.m.

1 stop30h 05m

C$ 414

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

Showing 1-10 of 60 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 5 December 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 50 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, April is the cheapest month in which you can book a flight from Toronto to San Francisco (average of C$ 199). Flying from Toronto to San Francisco in August is currently the most expensive (average of C$ 334). 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 December 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 35% 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 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. 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 12 December 2025.

The most flights from YTO to SFO are scheduled on a Friday (21 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).

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 88% 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$ 378.

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 Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 7h 34m.

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 Chicago (ORD) offer the fastest connection on this route, with an average layover time of 0h 50m.

How often are flights from Toronto to San Francisco delayed?

About 23% of weekly flights between Toronto and San Francisco have experienced delays in the past year, with the average delay time being 150 minutes.

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

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

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

Tuesday tends to have the lowest number of delays on this route, whereas Monday 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, Porter Airlines has had the lowest number of delays on this route, with just 13% 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 12 December 2025.
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.

Comfort

8.0

Boarding

8.2

Food

7.6

Crew

8.6

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Comfort

8.0

Boarding

8.2

Food

7.6

Crew

8.6

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Comfort

8.0

Boarding

8.2

Food

7.6

Crew

8.6

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Comfort

8.0

Boarding

8.2

Food

7.6

Crew

8.6

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Comfort

8.0

Boarding

8.2

Food

7.6

Crew

8.6

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

Comfort

8.0

Boarding

8.2

Food

7.6

Crew

8.6

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Mohameed,Nov 2025

LAS - YYZ

It's good. Planes are new and fresh. WiFi is best and stands out

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 16 flights from Toronto to San Francisco per day from 7 different airlines.

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

    Airlines like WestJet, Porter Airlines, and Alaska Airlines fly from Toronto to San Francisco in about 5h 53m. The time it takes to get you to your destination can typically vary by up to 3h 25m. 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, WestJet (C$ 198), American Airlines (C$ 239), and Delta (C$ 259) offers the cheapest pricing from Toronto to San Francisco. Users have found that WestJet is 61% 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$ 204), and Air Transat (C$ 225).

  • 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 (73%), United Airlines (72%), Porter Airlines (72%).

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

    While on average a flight from Toronto to San Francisco is generally C$ 1,813, our data shows the cheapest flight currently is C$ 253. When looking at the most popular route, (Toronto Pearson Intl - San Francisco), you can expect to pay C$ 345 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, April is the cheapest month in which you can book a flight from Toronto to San Francisco (average of C$ 199). Flying from Toronto to San Francisco in August is currently the most expensive (average of C$ 334). 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
Richmond
Newark
Redwood City
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 12 December 2025.

Top 7 airlines flying from Toronto to San Francisco

Discover the top 7 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 December 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 257AverageC$ 572FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 286AverageC$ 375FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 287AverageC$ 478FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Porter AirlinesCheapestC$ 320AverageC$ 472FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 328AverageC$ 547FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air TransatCheapestC$ 377AverageC$ 535FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapestC$ 431AverageC$ 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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