HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Francisco

$159+ 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — SFO
ago. 6 — ago. 131
mié. 8/6
mié. 8/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Toronto to San Francisco with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Toronto to San Francisco are usually found in April or March, booked 43 days in advance, depart on a Friday or Thursday and return on a Wednesday

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 agosto 1, 2025.

Round-trip from

$278
(Mytrip)

One-way from

$158
(SmartFares)

Popular in

December

Cheapest in

April

Average price

$439

Good round-trip deal

$399 or less

Good one-way deal

$239 or less
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. 5% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
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

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 agosto 1, 2025.

This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/269:45 amYYZ - SFO
Nonstop5h 38mPorter Airlines
lun. 9/291:25 pmSFO - YYZ
Nonstop5h 02mPorter Airlines
Deal found 7/29$278
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
mié. 8/279:00 amYYZ - SFO
2 stops11h 15mMultiple Airlines
mié. 9/1010:15 amSFO - YYZ
1 stop9h 38mMultiple Airlines
Deal found 7/31$279
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
lun. 8/2511:00 amYYZ - SFO
1 stop9h 15mWestJet
mié. 9/37:30 amSFO - YYZ
1 stop8h 22mWestJet
Deal found 7/30$281
This Mytrip deal was found by Cheapflights users on 7/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/55:45 pmYHM - SFO
1 stop18h 45mMultiple Airlines
mar. 9/910:15 amSFO - YHM
1 stop10h 44mMultiple Airlines
Deal found 7/31$285
This FlightHub deal was found by Cheapflights users on 7/30. 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.
jue. 8/286:00 amYKF - SFO
1 stop8h 56mWestJet
jue. 9/412:50 pmSFO - YKF
1 stop8h 55mWestJet
Deal found 7/30$290
This Booking.com deal was found by Cheapflights users on 7/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/1312:25 pmYTZ - SFO
1 stop10h 26mAir Canada
sáb. 9/208:30 amSFO - YTZ
1 stop10h 04mAir Canada
Deal found 7/29$290
This Gotogate deal was found by Cheapflights users on 7/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/156:00 amYHM - SFO
1 stop8h 54mWestJet
lun. 9/2212:50 pmSFO - YHM
1 stop8h 50mWestJet
Deal found 7/29$290
This Air Canada deal was found by Cheapflights users on 7/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/296:20 pmYYZ - SFO
Nonstop5h 33mAir Canada
dom. 9/77:25 amSFO - YYZ
Nonstop4h 56mAir Canada
Deal found 7/30$319
This American Airlines deal was found by Cheapflights users on 7/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/291:15 pmYYZ - SFO
2 stops9h 40mAmerican Airlines
vie. 10/311:07 amSFO - YYZ
1 stop6h 52mAmerican Airlines
Deal found 7/29$324
This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/206:00 amYKF - SFO
1 stop8h 54mMultiple Airlines
mar. 9/2310:15 amSFO - YKF
2 stops16h 15mMultiple Airlines
Deal found 7/30$329
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/1312:25 pmYTZ - SFO
1 stop10h 26mMultiple Airlines
sáb. 9/2010:15 amSFO - YTZ
2 stops22h 16mMultiple Airlines
Deal found 7/29$333
This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/188:25 pmYKF - SFO
1 stop16h 05mFlair Airlines
lun. 8/2510:15 amSFO - YKF
1 stop17h 55mFlair Airlines
Deal found 7/30$376

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 agosto 1, 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

YYZ - SFO

YYZSFO

Toronto Pearson Intl

vie. 9/26

9:45 am-12:23 pm

Nonstop5h 38m

San Francisco

lun. 9/29

1:25 pm-9:27 pm

Nonstop5h 02m

$278

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

mié. 8/27

9:00 am-5:15 pm

2 stops11h 15m

San Francisco

mié. 9/10

10:15 am-10:53 pm

1 stop9h 38m

$279

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

lun. 8/25

11:00 am-5:15 pm

1 stop9h 15m

San Francisco

mié. 9/3

7:30 am-6:52 pm

1 stop8h 22m

$281

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

vie. 9/5

5:45 pm-9:30 am

1 stop18h 45m

San Francisco

mar. 9/9

10:15 am-11:59 pm

1 stop10h 44m

$285

TorontoSan Francisco

YTZ - SFO

YTZSFO

Toronto Island

sáb. 9/13

12:25 pm-7:51 pm

1 stop10h 26m

San Francisco

sáb. 9/20

8:30 am-9:34 pm

1 stop10h 04m

$290

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

jue. 8/28

6:00 am-11:56 am

1 stop8h 56m

San Francisco

jue. 9/4

12:50 pm-12:45 am

1 stop8h 55m

$290

HamiltonSan Francisco

YHM - SFO

YHMSFO

Hamilton

lun. 9/15

6:00 am-11:54 am

1 stop8h 54m

San Francisco

lun. 9/22

12:50 pm-12:40 am

1 stop8h 50m

$290

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

vie. 8/29

6:20 pm-8:53 pm

Nonstop5h 33m

San Francisco

dom. 9/7

7:25 am-3:21 pm

Nonstop4h 56m

$319

TorontoSan Francisco

YYZ - SFO

YYZSFO

Toronto Pearson Intl

mié. 10/29

1:15 pm-7:55 pm

2 stops9h 40m

San Francisco

vie. 10/31

1:07 am-10:59 am

1 stop6h 52m

$324

TorontoSan Francisco

YKF - SFO

YKFSFO

Toronto Region of Waterloo Intl

sáb. 9/20

6:00 am-11:54 am

1 stop8h 54m

San Francisco

mar. 9/23

10:15 am-5:30 am

2 stops16h 15m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 26 results
1
2
3

The best insider tips for Toronto to San Francisco flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Toronto to San Francisco trip
Airlines
Air Canada

Air Canada offers complimentary meals for all fare classes on international flights.


Air Canada’s Preferred Seats offer up to four inches of extra space in exit rows.

Read more about Air Canadaby Jessica Macdonald
Porter Airlines

PorterReserve offers early boarding and front-of-cabin seating with extra legroom (36 inches).


Porter flights feature free Wi-Fi and streaming entertainment for long-haul use on personal devices.

Read more about Porter Airlinesby Daniel Scheffler
Air Transat

Air Transat's Club Class includes priority check-in, boarding, and extra baggage allowance.


Air Transat offers in-flight entertainment with 200 content options on seatback screens or personal devices.

Read more about Air Transatby Miquel Ros
United Airlines

United's Polaris Class offers lie-flat seats, noise-reducing headphones, and large entertainment screens.


United's Premium Plus seats offer extra legroom, upgraded food, and two checked bags.

Read more about United Airlinesby Harriet Baskas
Airports
YYZ

Toronto Pearson offers fast and reliable Wi-Fi throughout the airport, perfect for staying connected before your flight.

Read more about YYZby Kaitlyn McInnis
SFO

For a budget-friendly trip to downtown, take BART from SFO. It’s a 40-minute ride to the city center.

Read more about SFOby Harriet Baskas
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on Air Canada

Jessica Macdonald

Jessica Macdonald

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
Daniel Scheffler

Daniel Scheffler

Expert on Porter Airlines

Daniel Scheffler

Daniel Scheffler

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
Miquel Ros

Miquel Ros

Expert on Air Transat

Miquel Ros

Miquel Ros

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
Harriet Baskas

Harriet Baskas

Expert on United Airlines and SFO

Harriet Baskas

Harriet Baskas

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
Kaitlyn McInnis

Kaitlyn McInnis

Expert on YYZ

Kaitlyn McInnis

Kaitlyn McInnis

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

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 July 25, 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 43 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 $276). Flying from Toronto to San Francisco in June is currently the most expensive (average of $358). 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 agosto 1, 2025.

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 at noon could potentially save you up to 54% on airfare.

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 December 16, 2024.

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 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 agosto 1, 2025.

The most flights from YTO to SFO are scheduled on a Thursday (16 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (10 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 63% 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 $259.

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: 8h 06m.

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 1h 26m.

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 agosto 1, 2025.
Peruse reviews from past customers who have flown with Porter Airlines, Air Transat, and United Airlines 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
318 reviews

Overall

8.0

Comfort

8.0

Crew

8.7

Boarding

8.2

Food

7.6

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Porter Airlines
8.0
Very good
318 reviews
Porter Airlines
8.0
Very good
318 reviews

Overall

8.0

Comfort

8.0

Crew

8.7

Boarding

8.2

Food

7.6

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Air Transat
7.7
Good
424 reviews
Porter Airlines
8.0
Very good
318 reviews

Overall

8.0

Comfort

8.0

Crew

8.7

Boarding

8.2

Food

7.6

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
United Airlines
7.4
Good
8,900 reviews
Porter Airlines
8.0
Very good
318 reviews

Overall

8.0

Comfort

8.0

Crew

8.7

Boarding

8.2

Food

7.6

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
American Airlines
7.2
Good
10,000 reviews
Porter Airlines
8.0
Very good
318 reviews

Overall

8.0

Comfort

8.0

Crew

8.7

Boarding

8.2

Food

7.6

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
WestJet
7.2
Good
2,978 reviews
Porter Airlines
8.0
Very good
318 reviews

Overall

8.0

Comfort

8.0

Crew

8.7

Boarding

8.2

Food

7.6

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2025

LIS - YYZ

Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience

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 11.8 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 12 daily inbound flights from Toronto from 7 different airlines.

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

    Flying on Porter Airlines is currently your cheapest option to San Francisco, with prices starting at $278. Additional round-trip tickets that might be worth considering are offered by WestJet and Air Canada, with the lowest prices starting at $281 and $290, respectively. Porter Airlines is priced at 28% 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 $158. However, be on the lookout for offers from Air Canada and Porter Airlines, 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 Toronto Region of Waterloo Intl - 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 Singapore Airlines (79%), Porter Airlines (79%) or Air Transat (79%) 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 $1,509, our data indicates the cheapest price to be $175. The most popular route (Toronto Pearson Intl - San Francisco), is priced around $251.

  • 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 $276). Flying from Toronto to San Francisco in June is currently the most expensive (average of $358). 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
Roseville
Mountain View
Santa Cruz
South San Francisco
Livermore
Turlock
Manteca
Antioch
Hollister
Watsonville
Sunnyvale
Newark
Milpitas
Campbell
Foster City
Capitola
Santa Clara
San Leandro
Burlingame
Redwood City

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.

Alternative routes for Toronto to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Los Angeles flights
Pearson Intl to Las Vegas flights
Pearson Intl to San Francisco flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Pierre Elliott Trudeau Intl to Los Angeles flights
Pearson Intl to San Diego flights
Pierre Elliott Trudeau Intl to San Francisco flights
Toronto Island to Los Angeles flights
Pearson Intl to Ontario flights
Pierre Elliott Trudeau Intl to San Diego flights
Toronto Island to San Francisco flights
Hamilton to San Francisco flights
Ottawa to Las Vegas flights
Region of Waterloo Intl to Las Vegas flights
Region of Waterloo Intl to San Francisco flights
Pearson Intl to San Jose flights
Hamilton to Las Vegas flights
Pierre Elliott Trudeau Intl to Ontario flights
Ottawa to Los Angeles flights
Pearson Intl to Sacramento flights
Pearson Intl to Fresno flights
Hamilton to Los Angeles flights
Pearson Intl to Santa Ana flights
Ottawa to San Francisco flights
Pearson Intl to Reno flights
Ottawa to Ontario flights
Pierre Elliott Trudeau Intl to Santa Ana flights
Pearson Intl to Palm Springs flights
Toronto Island to San Diego flights
Pearson Intl to Burbank flights
Pierre Elliott Trudeau Intl to Sacramento flights
Hamilton to Santa Ana flights
Hamilton to San Diego flights
Pearson Intl to Oakland flights
Pierre Elliott Trudeau Intl to San Jose flights
Ottawa to San Diego flights
London to Las Vegas flights
Windsor to Las Vegas flights
Hamilton to Ontario flights
London to San Francisco flights
Ottawa to San Jose flights
Ottawa to Santa Ana flights
Pierre Elliott Trudeau Intl to Burbank flights
Pierre Elliott Trudeau Intl to Reno flights
Pierre Elliott Trudeau Intl to Palm Springs flights
Hamilton to Sacramento flights
Region of Waterloo Intl to Sacramento flights

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 agosto 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$174Average$280FlexibilityNo cancel feeOn-time60%
Porter AirlinesCheapest$250Average$459FlexibilityNo cancel feeOn-time52%
Air CanadaCheapest$266Average$392FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$288Average$475FlexibilityNo cancel feeOn-time71%
DeltaCheapest$308Average$383FlexibilityNo cancel feeOn-timeN/A
Air TransatCheapest$310Average$365FlexibilityNo cancel feeOn-time50%
United AirlinesCheapest$334Average$492FlexibilityNo cancel feeOn-time69%

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.