Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from San Francisco to Toronto from C$ 142

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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YTO
14 Feb — 21 Feb1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from San Francisco to Toronto are usually found in February or March, booked 53 days in advance, depart on a Tuesday or Thursday and return on a Friday

Cheap flight deals from San Francisco to Toronto

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Toronto (YTO). 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 15 January 2026.

Round-trip from

C$ 343

One-way from

C$ 142

Popular in

December

Cheapest in

February

Average price

C$ 518

Good round-trip deal

C$ 228 or less

Good one-way deal

C$ 213 or less
WestJet
  • WestJet
  • 21/5-25/5
  • 3 total stops
  • 19h 36m total
  • San Francisco to Toronto
Search Deals
WestJet
  • WestJet
  • 8/5
  • 2 total stops
  • 23h 25m total
  • San Francisco to Toronto
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 105 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from San Francisco to Toronto (YTO).
Search Deals
Price to beat on a one-way flight from San Francisco to Toronto (YTO).
Search Deals

Find flight deals from San Francisco to Toronto

Enter your travel dates to find the best prices.

Cheapest flights from San Francisco to Toronto
Explore the most affordable flight options available from San Francisco to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 January 2026.

Thu 21/57:30 a.m.
SFO
-
YYZ
1 stop8h 22m
WestJet
Mon 25/59:00 a.m.
YYZ
-
SFO
2 stops11h 14m
WestJet
Deal found 12/1C$ 343
Sat 28/27:15 p.m.
SFO
-
YYZ
1 stop8h 05m
Multiple Airlines
Sat 7/39:50 a.m.
YYZ
-
SFO
Nonstop5h 55m
Multiple Airlines
Deal found 14/1C$ 344
Sat 31/110:15 a.m.
SFO
-
YYZ
1 stop11h 23m
Multiple Airlines
Mon 2/28:00 p.m.
YYZ
-
SFO
1 stop19h 38m
Multiple Airlines
Deal found 13/1C$ 347
Mon 1/67:30 a.m.
SFO
-
YYZ
2 stops10h 30m
WestJet
Sat 6/61:30 p.m.
YYZ
-
SFO
1 stop10h 54m
WestJet
Deal found 12/1C$ 350
Thu 29/110:15 a.m.
SFO
-
YYZ
1 stop17h 25m
Multiple Airlines
Mon 2/28:00 p.m.
YYZ
-
SFO
1 stop19h 38m
Multiple Airlines
Deal found 12/1C$ 351
Thu 23/41:00 p.m.
SFO
-
YYZ
1 stop8h 26m
WestJet
Tue 28/41:30 p.m.
YYZ
-
SFO
1 stop10h 54m
WestJet
Deal found 13/1C$ 353
Fri 10/49:01 a.m.
SFO
-
YYZ
1 stop7h 49m
Multiple Airlines
Sun 12/48:00 p.m.
YYZ
-
SFO
1 stop14h 58m
Multiple Airlines
Deal found 14/1C$ 358
Wed 25/27:15 p.m.
SFO
-
YYZ
2 stops21h 21m
Multiple Airlines
Mon 2/39:50 a.m.
YYZ
-
SFO
Nonstop5h 55m
Multiple Airlines
Deal found 13/1C$ 361
Sat 7/210:15 a.m.
SFO
-
YYZ
1 stop24h 25m
Multiple Airlines
Thu 26/28:35 p.m.
YYZ
-
SFO
1 stop14h 13m
Multiple Airlines
Deal found 14/1C$ 362
Thu 7/512:50 p.m.
SFO
-
YKF
1 stop8h 55m
WestJet
Sun 10/56:00 a.m.
YKF
-
SFO
1 stop8h 54m
WestJet
Deal found 12/1C$ 365
Fri 1/512:50 p.m.
SFO
-
YKF
1 stop8h 55m
WestJet
Mon 4/56:00 a.m.
YKF
-
SFO
1 stop8h 54m
WestJet
Deal found 14/1C$ 367
Mon 1/612:50 p.m.
SFO
-
YKF
1 stop8h 55m
WestJet
Sat 6/66:00 a.m.
YKF
-
SFO
2 stops10h 57m
WestJet
Deal found 12/1C$ 368

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Toronto 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 15 January 2026.
Use the filters below to find and compare flights from San Francisco to Toronto that are best for you.

Fly from

San Francisco

Fly to

Toronto

Route

Depart

Return

Price

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Fri 1/5

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

1 stop8h 55m

Toronto Region of Waterloo Intl

Mon 4/5

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

1 stop8h 54m

C$ 367

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Mon 1/6

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

1 stop8h 55m

Toronto Region of Waterloo Intl

Sat 6/6

6:00 a.m.-1:57 p.m.

2 stops10h 57m

C$ 368

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Fri 19/6

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

1 stop8h 55m

Toronto Region of Waterloo Intl

Tue 23/6

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

1 stop8h 54m

C$ 404

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Sat 16/5

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

1 stop8h 55m

Toronto Region of Waterloo Intl

Sun 17/5

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

1 stop8h 54m

C$ 419

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Fri 19/6

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

1 stop8h 55m

Toronto Region of Waterloo Intl

Mon 22/6

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

1 stop8h 54m

C$ 421

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Thu 14/5

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

1 stop8h 55m

Toronto Region of Waterloo Intl

Sun 17/5

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

1 stop8h 54m

C$ 425

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Sat 30/5

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

1 stop8h 55m

Toronto Region of Waterloo Intl

Wed 3/6

6:00 a.m.-1:57 p.m.

2 stops10h 57m

C$ 426

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Sat 6/6

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

1 stop8h 55m

Toronto Region of Waterloo Intl

Thu 11/6

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

1 stop8h 54m

C$ 444

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Sat 6/6

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

1 stop8h 55m

Toronto Region of Waterloo Intl

Sat 13/6

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

1 stop8h 54m

C$ 444

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Sat 9/5

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

1 stop8h 55m

Toronto Region of Waterloo Intl

Mon 18/5

6:00 a.m.-1:57 p.m.

2 stops10h 57m

C$ 446

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from San Francisco to Toronto

Have a flexible travel schedule? Discover the best time to fly to Toronto from San Francisco 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 San Francisco to Toronto

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

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Toronto. Price data was last updated on 9 January 2026.

The price you pay for your flight from San Francisco to Toronto may vary depending on when you book. For the best chance of a lower fare, look to book 53 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 San Francisco to Toronto?

Currently, February is the cheapest month in which you can book a flight from San Francisco to Toronto (average of C$ 176). Flying from San Francisco to Toronto in August is currently the most expensive (average of C$ 282). 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 SFO to YTO?

Find hourly flight availability from San Francisco to Toronto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 January 2026.

It’s typically best to fly out from San Francisco to Toronto in the evening. Doing so could potentially save you 20% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from San Francisco to Toronto?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Toronto. Price data was last updated on 10 January 2026.

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

Weekly flight availability from San Francisco to Toronto

Explore weekly flight availability from San Francisco to Toronto. 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 15 January 2026.

The most flights from SFO to YTO are scheduled on a Wednesday (18 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

How much does it cost to fly round-trip from San Francisco to Toronto?

What’s the top layover airport for flights from San Francisco to Toronto?

Share of one-stop round-trip flights from San Francisco to Toronto chosen by Cheapflights users in the past 12 months, using the same layover each way.

Calgary (YYC) – chosen by Cheapflights users on 71% of one-stop itineraries from San Francisco to Toronto on Cheapflights.

What’s the cheapest layover airport for flights from San Francisco to Toronto?

Average round-trip fare for 1-stop flights from San Francisco to Toronto, 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$ 350.

What’s the fastest layover option from San Francisco to Toronto?

Shortest average travel time for 1-stop one-way flights from San Francisco to Toronto, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 6h 53m.

Which airport typically offers the quickest layover for flights from San Francisco to Toronto?

Average layover duration for 1-stop one-way flights from San Francisco to Toronto, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 11m.

Reviews of airlines servicing Toronto

Get insights into the airlines that provide service to Toronto. 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 Toronto. Reviews last updated 15 January 2026.
Check out reviews from past customers who have flown with Porter Airlines,Air Transat, andWestJet from San Francisco to Toronto 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
407 reviews
Check prices

Food

7.6

Overall

8.0

Comfort

7.9

Crew

8.6

Boarding

8.2

Entertainment

7.0

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
Porter Airlines
8.0
Very good
407 reviews
Porter Airlines
8.0
Very good
407 reviews
Check prices

Food

7.6

Overall

8.0

Comfort

7.9

Crew

8.6

Boarding

8.2

Entertainment

7.0

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
Air Transat
7.7
Good
495 reviews
Porter Airlines
8.0
Very good
407 reviews
Check prices

Food

7.6

Overall

8.0

Comfort

7.9

Crew

8.6

Boarding

8.2

Entertainment

7.0

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
WestJet
7.2
Good
3,242 reviews
Porter Airlines
8.0
Very good
407 reviews
Check prices

Food

7.6

Overall

8.0

Comfort

7.9

Crew

8.6

Boarding

8.2

Entertainment

7.0

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
Air Canada
7.1
Good
10,623 reviews
Porter Airlines
8.0
Very good
407 reviews
Check prices

Food

7.6

Overall

8.0

Comfort

7.9

Crew

8.6

Boarding

8.2

Entertainment

7.0

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 San Francisco to Toronto. 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 from for flights from San Francisco to Toronto?

    Located just 19.0 km from the city centre, San Francisco is the airport most travellers will use when flying to Toronto from San Francisco. Booking flights from San Francisco (SFO) to Toronto should be relatively easy as there are 14 daily outbound flights to Toronto from 5 different airlines.

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

    For as low as C$ 457, WestJet can have you in Toronto from San Francisco in 5h 05m. Airlines will cover a distance of 3626 km. This flight may include one or multiple stops.

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

    Cheapflights users have booked flights from San Francisco to Toronto round-trip from C$ 244. Other airlines that can offer you cheap pricing are Porter Airlines, from C$ 251, and WestJet, from C$ 290. Air Canada is currently priced 59% below the average price you’ll pay for this route.

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

    The cheapest airlines for a one-way flight from San Francisco to Toronto are WestJet (C$ 135), Air Canada (C$ 170), and Porter Airlines (C$ 171).

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

    The most popular route from San Francisco to Toronto is San Francisco - Toronto Pearson Intl. You may also consider San Francisco - Toronto Island or San Francisco - Hamilton.

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

    The top 3 most reliable airlines when flying from San Francisco to Toronto are United Airlines (75%), Air Canada (75%) and Singapore Airlines (70%).

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

    Looking at all options, your cheapest flight can be booked for C$ 188. While the most popular route (San Francisco - Toronto Pearson Intl) can be booked for C$ 348 on average, our data indicates C$ 337 when flying from San Francisco to Toronto.

  • Can I find deals for flights from San Francisco to Toronto that include hotel bookings?

    Yes. In addition to deals on San Francisco to Toronto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Toronto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Toronto.

  • Can I find deals for business class flights from San Francisco to Toronto?

    Yes. Cheapflights offers flight deals from San Francisco to Toronto 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 San Francisco to Toronto?

    Currently, February is the cheapest month in which you can book a flight from San Francisco to Toronto (average of C$ 176). Flying from San Francisco to Toronto in August is currently the most expensive (average of C$ 282). 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

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 San Francisco to Toronto

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

Top 5 airlines flying from San Francisco to Toronto

Discover the top 5 airlines that operate flights from San Francisco to Toronto. 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 15 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 244AverageC$ 605FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 251AverageC$ 538FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 290AverageC$ 446FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 310AverageC$ 813FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air TransatCheapestC$ 507AverageC$ 892FlexibilityNo cancel feeOn-time50%
Search Air Transat 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 San Francisco to Toronto?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Toronto from San Francisco today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from San Francisco to Toronto?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from San Francisco to Toronto.

Can Cheapflights find flights from San Francisco to Toronto with no change fees?

Certainly. Search results for flights to Toronto from San Francisco shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from San Francisco to Toronto become cheaper?

Yes, Cheapflights offers price alerts on San Francisco to Toronto flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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.