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Cheap flights from San Francisco to Toronto from C$ 137

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 27/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YTO
26 Feb — 5 Mar1
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 87 days in advance, depart on a Tuesday or Thursday and return on a Friday

Cheap 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 27 January 2026.

Mon 23/22:25 p.m.
SFO
-
YYZ
1 stop13h 18m
Multiple Airlines
Thu 5/38:35 p.m.
YYZ
-
SFO
1 stop14h 23m
Multiple Airlines
Deal found 27/1C$ 342
Mon 23/22:25 p.m.
SFO
-
YYZ
1 stop13h 18m
Multiple Airlines
Wed 4/39:00 p.m.
YYZ
-
SFO
1 stop15h 30m
Multiple Airlines
Deal found 27/1C$ 349
Sat 14/37:32 p.m.
SFO
-
YYZ
2 stops24h 39m
Multiple Airlines
Fri 20/38:00 p.m.
YYZ
-
SFO
1 stop15h 49m
Multiple Airlines
Deal found 26/1C$ 355
Wed 25/27:15 p.m.
SFO
-
YYZ
2 stops21h 21m
Multiple Airlines
Thu 5/38:35 p.m.
YYZ
-
SFO
1 stop14h 23m
Multiple Airlines
Deal found 27/1C$ 356
Thu 12/310:15 a.m.
SFO
-
YYZ
1 stop17h 25m
Multiple Airlines
Mon 23/38:00 p.m.
YYZ
-
SFO
1 stop25h 37m
Multiple Airlines
Deal found 25/1C$ 357
Wed 25/27:15 p.m.
SFO
-
YYZ
2 stops21h 21m
Multiple Airlines
Wed 4/39:00 p.m.
YYZ
-
SFO
1 stop15h 30m
Multiple Airlines
Deal found 27/1C$ 363
Thu 19/21:45 p.m.
SFO
-
YYZ
Nonstop4h 57m
Multiple Airlines
Wed 25/28:05 a.m.
YYZ
-
SFO
Nonstop5h 49m
Multiple Airlines
Deal found 27/1C$ 367
Sun 1/38:34 p.m.
SFO
-
YYZ
1 stop30h 46m
Multiple Airlines
Fri 6/38:00 p.m.
YYZ
-
SFO
1 stop15h 49m
Multiple Airlines
Deal found 26/1C$ 368
Tue 5/56:00 a.m.
SFO
-
YHM
1 stop8h 10m
WestJet
Tue 12/56:10 p.m.
YHM
-
SFO
1 stop20h 50m
WestJet
Deal found 26/1C$ 392
Fri 1/56:00 a.m.
SFO
-
YHM
1 stop8h 15m
WestJet
Tue 5/56:10 p.m.
YHM
-
SFO
1 stop20h 50m
WestJet
Deal found 25/1C$ 393
Fri 1/56:00 a.m.
SFO
-
YHM
1 stop8h 10m
WestJet
Sat 9/56:10 p.m.
YHM
-
SFO
1 stop30h 45m
WestJet
Deal found 26/1C$ 415
Fri 24/41:00 p.m.
SFO
-
YKF
1 stop13h 29m
WestJet
Fri 1/58:40 p.m.
YKF
-
SFO
1 stop18h 20m
WestJet
Deal found 26/1C$ 435

Find 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 27 January 2026.

Round-trip from

C$ 342

One-way from

C$ 137

Popular in

December

Cheapest in

February

Average price

C$ 537

Good round-trip deal

C$ 397 or less

Good one-way deal

C$ 231 or less
23/2-5/3
  • 23/2-5/3
  • 2 total stops
  • 27h 41m total
  • San Francisco to Toronto
Search Deals
WestJet
  • WestJet
  • 27/5
  • 1 total stop
  • 8h 10m total
  • San Francisco to Toronto
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 34 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

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 27 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 FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Thu 18/6

6:00 a.m.-5:10 p.m.

1 stop8h 10m

Hamilton

Wed 24/6

6:10 p.m.-11:54 a.m.

1 stop20h 44m

C$ 449

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Fri 1/5

6:00 a.m.-5:15 p.m.

1 stop8h 15m

Hamilton

Sun 3/5

6:10 p.m.-12:00 p.m.

1 stop20h 50m

C$ 456

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Fri 8/5

1:00 p.m.-5:10 p.m.

1 stop25h 10m

Hamilton

Mon 11/5

6:10 p.m.-9:55 p.m.

1 stop30h 45m

C$ 457

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Wed 13/5

6:00 a.m.-7:50 p.m.

1 stop10h 50m

Toronto Region of Waterloo Intl

Sun 17/5

8:40 p.m.-4:40 p.m.

1 stop23h 00m

C$ 460

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Fri 1/5

6:00 a.m.-5:10 p.m.

1 stop8h 10m

Hamilton

Wed 6/5

6:10 p.m.-12:00 p.m.

1 stop20h 50m

C$ 475

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Mon 4/5

6:00 a.m.-7:50 p.m.

1 stop10h 50m

Toronto Region of Waterloo Intl

Sun 17/5

8:40 p.m.-12:00 p.m.

1 stop18h 20m

C$ 477

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Thu 19/3

1:00 p.m.-1:21 p.m.

1 stop21h 21m

Hamilton

Tue 24/3

5:50 a.m.-12:10 p.m.

1 stop9h 20m

C$ 490

San FranciscoToronto

SFO - YTZ

SFOYTZ

San Francisco

Tue 21/4

8:10 a.m.-9:32 p.m.

1 stop10h 22m

Toronto Island

Sat 2/5

12:30 p.m.-9:02 p.m.

1 stop11h 32m

C$ 493

San FranciscoToronto

SFO - YTZ

SFOYTZ

San Francisco

Tue 10/3

8:25 a.m.-9:35 p.m.

1 stop10h 10m

Toronto Island

Tue 17/3

10:25 a.m.-9:22 p.m.

2 stops13h 57m

C$ 498

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Tue 26/5

1:00 p.m.-5:10 p.m.

1 stop25h 10m

Hamilton

Thu 28/5

6:10 p.m.-4:40 p.m.

1 stop25h 30m

C$ 498

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/1

Showing 1-10 of 60 results
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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 23 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 85 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$ 174). Flying from San Francisco to Toronto in August is currently the most expensive (average of C$ 278). 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 27 January 2026.

It’s typically best to fly out from San Francisco to Toronto in the evening. Doing so could potentially save you 18% 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 24 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 27 January 2026.

The most flights from SFO to YTO are scheduled on a Monday (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$ 345.

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 27 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
7.9
Good
412 reviews
Check prices

Food

7.5

Boarding

8.2

Entertainment

6.9

Comfort

7.9

Overall

7.9

Crew

8.6

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
7.9
Good
412 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Food

7.5

Boarding

8.2

Entertainment

6.9

Comfort

7.9

Overall

7.9

Crew

8.6

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
501 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Food

7.5

Boarding

8.2

Entertainment

6.9

Comfort

7.9

Overall

7.9

Crew

8.6

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
3,251 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Food

7.5

Boarding

8.2

Entertainment

6.9

Comfort

7.9

Overall

7.9

Crew

8.6

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
10,660 reviews
Porter Airlines
7.9
Good
412 reviews
Check prices

Food

7.5

Boarding

8.2

Entertainment

6.9

Comfort

7.9

Overall

7.9

Crew

8.6

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 13 daily outbound flights to Toronto from 5 different airlines.

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

    For as low as C$ 449, WestJet can have you in Toronto from San Francisco in 8h 10m. Airlines will cover a distance of 3605 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$ 241. Other airlines that can offer you cheap pricing are Porter Airlines, from C$ 248, and WestJet, from C$ 286. 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$ 133), Air Canada (C$ 167), and Porter Airlines (C$ 169).

  • 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 (69%), Air Canada (69%) and Singapore Airlines (68%).

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

    Looking at all options, your cheapest flight can be booked for C$ 173. While the most popular route (San Francisco - Toronto Pearson Intl) can be booked for C$ 349 on average, our data indicates C$ 392 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$ 174). Flying from San Francisco to Toronto in August is currently the most expensive (average of C$ 278). 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

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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
Los Angeles to Toronto Island flights
Ontario to Pearson Intl flights
San Francisco to Toronto Island flights
San Jose to Pearson Intl flights
Las Vegas to Pearson Intl flights
San Diego to Pierre Elliott Trudeau Intl flights
Palm Springs to Pearson Intl flights
Santa Ana to Pearson Intl flights
Ontario to Pierre Elliott Trudeau Intl flights
Sacramento to Pearson Intl flights
San Jose to Pierre Elliott Trudeau Intl flights
Los Angeles to Ottawa flights
Santa Ana to Pierre Elliott Trudeau Intl flights
Fresno to Pearson Intl flights
Las Vegas to Pierre Elliott Trudeau Intl flights
Burbank to Pearson Intl flights
Sacramento to Pierre Elliott Trudeau Intl flights
San Francisco to Hamilton flights
Oakland to Pearson Intl flights
Oakland to Pierre Elliott Trudeau Intl flights
San Francisco to Ottawa flights
Los Angeles to Hamilton flights
Reno to Pearson Intl flights
Burbank to Pierre Elliott Trudeau Intl flights
Santa Ana to Ottawa flights
Los Angeles to Region of Waterloo Intl flights
San Diego to Ottawa flights
Tijuana to Pearson Intl flights
San Francisco to London flights
Sacramento to Ottawa flights
Burbank to Ottawa flights
Tijuana to Pierre Elliott Trudeau Intl flights
Santa Ana to Hamilton flights
Santa Barbara to Pearson Intl flights
San Jose to London flights
San Jose to Ottawa flights
Fresno to Pierre Elliott Trudeau Intl 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 27 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 241AverageC$ 597FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 248AverageC$ 530FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 286AverageC$ 440FlexibilityNo cancel feeOn-time60%
Search WestJet flights
United AirlinesCheapestC$ 306AverageC$ 802FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air TransatCheapestC$ 500AverageC$ 880FlexibilityNo 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.

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