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$183+ Cheap flights from Toronto (YTO) to San Francisco (SFO)

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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — SFO
Jul 20 — Jul 271
Mon 7/20
Mon 7/27
1 adult, Economy
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Find cheap flights from Toronto to San Francisco with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Toronto to San Francisco are usually found in November or October, booked 88 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap 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 June 20, 2026.

This FlightHub deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2412:40 pm
YYZ
-
SFO
2 stops12h 15m
WestJet
Wed 9/301:00 pm
SFO
-
YYZ
1 stop8h 10m
WestJet
Deal found 6/16$338
This oojo deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:10 am
YYZ
-
SFO
2 stops18h 45m
WestJet
Sun 7/266:05 pm
SFO
-
YYZ
2 stops19h 10m
WestJet
Deal found 6/15$339
This Vliegwinkel deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:10 pm
YHM
-
SFO
1 stop20h 50m
WestJet
Thu 8/206:00 am
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 6/19$340
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/229:45 am
YYZ
-
SFO
Nonstop5h 35m
Porter Airlines
Fri 10/21:20 pm
SFO
-
YYZ
Nonstop5h 05m
Porter Airlines
Deal found 6/16$340
This oojo deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/143:50 pm
YYZ
-
SFO
1 stop9h 05m
WestJet
Fri 9/186:00 am
SFO
-
YYZ
1 stop8h 10m
WestJet
Deal found 6/15$341
This oojo deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:10 pm
YHM
-
SFO
1 stop20h 50m
WestJet
Tue 8/186:00 am
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 6/20$342
This oojo deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/198:00 am
YYZ
-
SFO
2 stops31h 00m
WestJet
Fri 7/316:00 am
SFO
-
YYZ
2 stops12h 10m
WestJet
Deal found 6/15$342
This Justfly.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/166:10 pm
YHM
-
SFO
1 stop20h 50m
WestJet
Wed 7/296:00 am
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 6/16$343
This Kiwi.com deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1611:10 pm
YYZ
-
SFO
2 stops15h 50m
WestJet
Mon 7/201:00 pm
SFO
-
YYZ
1 stop8h 10m
WestJet
Deal found 6/16$343
This Justfly.com deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:10 pm
YHM
-
SFO
1 stop20h 50m
WestJet
Sun 7/196:00 am
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 6/15$344
This oojo deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/33:50 pm
YYZ
-
SFO
1 stop9h 05m
WestJet
Tue 9/86:00 am
SFO
-
YYZ
1 stop9h 55m
WestJet
Deal found 6/15$344
This oojo deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:10 pm
YHM
-
SFO
1 stop20h 50m
WestJet
Tue 7/286:00 am
SFO
-
YHM
1 stop8h 15m
WestJet
Deal found 6/16$345

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 June 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$338
(FlightHub)

One-way from

$183
(FlightHub)

Popular in

July

Cheapest in

November

Average price

$436

Good round-trip deal

$403 or less

Good one-way deal

$245 or less
Provider with most accurate pricing for Toronto (YTO)-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Toronto (YTO)-San Francisco flights.
Search Deals
From Toronto (YTO) to San Francisco
Search Deals
One-way flight from Toronto (YTO) to San Francisco
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Toronto (YTO) to San Francisco.
Search Deals
Price to beat on a one-way flight from Toronto (YTO) to San Francisco.
Search Deals

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 2,558,603 searches. Data last updated June 20, 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 7/17

6:10 pm-12:00 pm

1 stop20h 50m

San Francisco

Tue 7/21

6:00 am-5:15 pm

1 stop8h 15m

$344

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Mon 8/17

8:40 pm-9:55 pm

1 stop28h 15m

San Francisco

Mon 8/24

6:00 am-7:50 pm

1 stop10h 50m

$354

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Thu 8/6

8:40 pm-12:00 pm

1 stop18h 20m

San Francisco

Sun 8/9

6:00 am-7:50 pm

1 stop10h 50m

$356

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Tue 8/11

8:40 pm-4:40 pm

1 stop23h 00m

San Francisco

Fri 8/21

6:05 pm-7:50 pm

1 stop22h 45m

$357

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Thu 9/24

8:40 pm-12:00 pm

1 stop18h 20m

San Francisco

Sun 9/27

6:00 am-7:50 pm

1 stop10h 50m

$357

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Mon 8/24

8:40 pm-9:55 pm

1 stop28h 15m

San Francisco

Tue 9/1

6:00 am-7:50 pm

1 stop10h 50m

$357

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Mon 8/17

8:40 pm-9:55 pm

1 stop28h 15m

San Francisco

Thu 8/27

6:00 am-7:50 pm

1 stop10h 50m

$358

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Fri 8/28

8:40 pm-4:40 pm

1 stop23h 00m

San Francisco

Mon 8/31

6:00 am-7:50 pm

1 stop10h 50m

$358

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

Thu 7/16

8:40 pm-12:00 pm

1 stop18h 20m

San Francisco

Wed 7/22

6:00 am-7:50 pm

1 stop10h 50m

$358

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

Thu 9/24

6:10 pm-12:00 pm

1 stop20h 50m

San Francisco

Sun 9/27

6:00 am-5:15 pm

1 stop8h 15m

$358

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/17

Showing 1-10 of 60 resultsSorted by cheapest first
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Compare providers for flights from Toronto to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Toronto to San Francisco in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy1 starTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Toronto-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Toronto-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Toronto-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Toronto-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Toronto-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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 $342). Flying from Toronto to San Francisco in January is currently the most expensive (average of $421). 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 June 20, 2026.

One of the essential ways to save on airfare from Toronto to San Francisco is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 46% on airfare.

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 June 20, 2026.

The most flights from YTO to SFO are scheduled on a Saturday (24 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (13 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 1-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 75% of 1-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 $304.

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 Calgary (YYC) have the shortest average one-way travel time for 1-stop routes: 9h 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 Calgary (YYC) offer the fastest connection on this route, with an average layover time of 1h 56m.

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 160 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?

Thursday tends to have the lowest number of delays on this route, whereas Friday 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 last year, United Airlines have had the lowest number of delays on this route, with just 15% of flights being delayed.

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

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 48 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 June 20, 2026.

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

The best insider tips for Toronto to San Francisco flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Toronto to San Francisco trip
Our travel experts
Daniel Scheffler

Daniel Scheffler

Expert on Porter Airlines

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Jessica Macdonald

Jessica Macdonald

Expert on Air Canada

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines and SFO

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Miquel Ros

Miquel Ros

Expert on Air Transat

Originally from Barcelona, Miquel is an avid traveler fascinated by borders and airplanes, two topics that feature often in this work. Miquel writes regularly about travel and aviation for international media outlets such as CNN and AeroTime and runs Allplane.tv, a site and podcast focusing on innovation and sustainability in the aviation industry.

Read more
Kaitlyn McInnis

Kaitlyn McInnis

Expert on YYZ

Kaitlyn is a guidebook author and travel writer splitting her time between Atlantic Canada and Istanbul, Türkiye. She has visited over fifty countries and all seven continents, so she is very familiar with many hotels, airports and airlines around the globe. But her favorite type of vacation is sunbathing by the sea with a good book in hand.

Read more

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 June 20, 2026.
Peruse reviews from past customers who have flown with Porter Airlines,United Airlines, andWestJet from Toronto to San Francisco to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
438 reviews

Comfort

8.0

Boarding

8.2

Entertainment

6.9

Food

7.6

Crew

8.6

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Porter Airlines
8.0
Very good
438 reviews
Porter Airlines
8.0
Very good
438 reviews

Comfort

8.0

Boarding

8.2

Entertainment

6.9

Food

7.6

Crew

8.6

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
United Airlines
7.4
Good
9,865 reviews
Porter Airlines
8.0
Very good
438 reviews

Comfort

8.0

Boarding

8.2

Entertainment

6.9

Food

7.6

Crew

8.6

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
WestJet
7.2
Good
3,375 reviews
Porter Airlines
8.0
Very good
438 reviews

Comfort

8.0

Boarding

8.2

Entertainment

6.9

Food

7.6

Crew

8.6

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
American Airlines
7.1
Good
11,715 reviews
Porter Airlines
8.0
Very good
438 reviews

Comfort

8.0

Boarding

8.2

Entertainment

6.9

Food

7.6

Crew

8.6

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.
Air Canada
7.1
Good
11,227 reviews
Porter Airlines
8.0
Very good
438 reviews

Comfort

8.0

Boarding

8.2

Entertainment

6.9

Food

7.6

Crew

8.6

Overall

8.0

Reviews

1 / 20
6.0
Good

Justin,May 2026

YYZ - MCO

Staff very nice. Seats were uncomfortable. Complimentary snacks leave much to be desired.

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

    Located just 11.0 mi from the city center, San Francisco is the airport most travelers will use when flying to San Francisco from Toronto. Booking flights from Toronto to San Francisco (SFO) should be relatively easy as there are 18 daily inbound flights from Toronto from 7 different airlines.

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

    There are many flights that can get you from Toronto to San Francisco in 10h 36m. Fly via WestJet or United Airlines to get the fastest option. The distance from Toronto to San Francisco is about 2264 mi. This flight may include one or multiple stops.

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

    Flying on WestJet is currently your cheapest option to San Francisco, with prices starting at $118. Additional round-trip tickets that might be worth considering are offered by Delta and Air Canada, with the lowest prices starting at $216 and $233, respectively. WestJet is priced at 71% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $148. However, be on the lookout for offers from Porter Airlines and Air Canada, as they are both options that can get you from Toronto to San Francisco for a low price.

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

    While some choose either Toronto Island - San Francisco or Hamilton - San Francisco, Toronto Pearson Intl - San Francisco is the most popular route from Toronto to San Francisco.

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

    Consider American Airlines (78%), Porter Airlines (78%) or Air Transat (78%) when booking your flight. These represent the most reliable airlines when flying from Toronto to San Francisco.

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

    Looking for the cheapest flight from Toronto to San Francisco? While on average our users pay $866, our data indicates the cheapest price to be $194. The most popular route (Toronto Pearson Intl - San Francisco), is priced around $301.

  • 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 $342). Flying from Toronto to San Francisco in January is currently the most expensive (average of $421). 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

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
South San Francisco
Santa Cruz
Santa Clara
Fairfield
Rancho Cordova
Roseville
Cupertino
Emeryville
Newark
Watsonville
San Bruno
San Ramon
Vacaville
San Carlos
Redwood City
Daly City
Turlock
Sunnyvale
Vallejo
San Lorenzo

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.

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 2,558,603 searches. Data last updated June 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$118Average$292FlexibilityNo cancel feeOn-time60%
DeltaCheapest$216Average$372FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$233Average$444FlexibilityNo cancel feeOn-time67%
Porter AirlinesCheapest$253Average$414FlexibilityNo cancel feeOn-time52%
American AirlinesCheapest$313Average$426FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$314Average$496FlexibilityNo cancel feeOn-time69%
Air TransatCheapest$324Average$458FlexibilityNo cancel feeOn-time50%

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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.