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Cheap flights from San Francisco to Toronto from C$ 204

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 18/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — YTO
20 Aug — 27 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from San Francisco to Toronto are usually found in January or February, booked 70 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 21 July 2026.

Fri 16/106:00 a.m.
SFO
-
YYZ
2 stops12h 35m
Multiple Airlines
Tue 20/109:45 a.m.
YYZ
-
SFO
Nonstop5h 35m
Multiple Airlines
Deal found 19/7C$ 407
Fri 16/106:00 a.m.
SFO
-
YYZ
2 stops12h 35m
WestJet
Mon 19/106:00 a.m.
YYZ
-
SFO
1 stop9h 00m
WestJet
Deal found 19/7C$ 410
Thu 15/106:00 a.m.
SFO
-
YYZ
2 stops12h 35m
Multiple Airlines
Wed 21/109:45 a.m.
YYZ
-
SFO
Nonstop5h 35m
Multiple Airlines
Deal found 19/7C$ 411
Fri 16/106:00 a.m.
SFO
-
YYZ
2 stops12h 35m
WestJet
Wed 21/1010:50 a.m.
YYZ
-
SFO
1 stop8h 50m
WestJet
Deal found 19/7C$ 413
Thu 15/106:00 a.m.
SFO
-
YYZ
2 stops12h 35m
WestJet
Sun 18/106:00 a.m.
YYZ
-
SFO
1 stop9h 00m
WestJet
Deal found 19/7C$ 416
Tue 20/106:00 a.m.
SFO
-
YYZ
2 stops10h 55m
WestJet
Sat 24/106:00 a.m.
YYZ
-
SFO
1 stop9h 00m
WestJet
Deal found 16/7C$ 417
Thu 15/106:00 a.m.
SFO
-
YYZ
2 stops12h 35m
WestJet
Tue 20/106:00 a.m.
YYZ
-
SFO
1 stop9h 00m
WestJet
Deal found 20/7C$ 418
Fri 14/86:00 a.m.
SFO
-
YYZ
2 stops12h 10m
WestJet
Thu 20/89:00 a.m.
YYZ
-
SFO
1 stop10h 40m
WestJet
Deal found 18/7C$ 420
Sun 16/86:00 a.m.
SFO
-
YYZ
2 stops12h 10m
WestJet
Wed 26/86:00 a.m.
YYZ
-
SFO
1 stop9h 00m
WestJet
Deal found 18/7C$ 421
Mon 10/86:00 a.m.
SFO
-
YYZ
2 stops12h 35m
WestJet
Wed 19/86:00 a.m.
YYZ
-
SFO
1 stop9h 00m
WestJet
Deal found 16/7C$ 423
Wed 26/86:00 a.m.
SFO
-
YYZ
1 stop9h 55m
WestJet
Mon 31/810:00 a.m.
YYZ
-
SFO
1 stop9h 40m
WestJet
Deal found 16/7C$ 424
Fri 2/106:00 a.m.
SFO
-
YKF
1 stop10h 50m
WestJet
Sun 4/108:40 p.m.
YKF
-
SFO
1 stop18h 20m
WestJet
Deal found 16/7C$ 504

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 21 July 2026.

Round-trip from

C$ 407

One-way from

C$ 204

Popular in

December

Cheapest in

January

Average price

C$ 824

Good round-trip deal

C$ 705 or less

Good one-way deal

C$ 313 or less
Porter Airlines
  • Porter Airlines
  • 16/10-20/10
  • 2 total stops
  • 18h 10m total
  • San Francisco to Toronto
Search Deals
WestJet
  • WestJet
  • 18/10
  • 1 total stop
  • 8h 15m total
  • San Francisco to Toronto
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 21 July 2026.
Use the filters below to find and compare flights from San Francisco to Toronto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Fri 16/10

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

1 stop10h 50m

Toronto Region of Waterloo Intl

Sun 18/10

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

1 stop18h 20m

C$ 510

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Tue 22/9

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

1 stop10h 50m

Toronto Region of Waterloo Intl

Tue 29/9

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

1 stop18h 20m

C$ 518

San FranciscoToronto

SFO - YYZ

SFOYYZ

San Francisco

Mon 28/9

1:20 p.m.-9:25 p.m.

Nonstop5h 05m

Toronto Pearson Intl

Wed 30/9

9:45 a.m.-12:20 p.m.

Nonstop5h 35m

C$ 595

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Mon 24/8

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

1 stop10h 50m

Toronto Region of Waterloo Intl

Thu 27/8

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

1 stop18h 20m

C$ 605

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Thu 10/9

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

1 stop10h 50m

Toronto Region of Waterloo Intl

Sun 13/9

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

1 stop18h 20m

C$ 611

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Tue 11/8

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

1 stop10h 50m

Toronto Region of Waterloo Intl

Tue 25/8

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

1 stop18h 20m

C$ 627

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Sun 20/9

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

1 stop8h 15m

Hamilton

Mon 28/9

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

1 stop20h 50m

C$ 627

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Sat 3/10

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

1 stop10h 50m

Toronto Region of Waterloo Intl

Mon 12/10

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

1 stop18h 20m

C$ 632

San FranciscoToronto

SFO - YKF

SFOYKF

San Francisco

Mon 14/9

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

1 stop10h 50m

Toronto Region of Waterloo Intl

Thu 17/9

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

1 stop18h 20m

C$ 633

San FranciscoHamilton

SFO - YHM

SFOYHM

San Francisco

Mon 17/8

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

1 stop8h 15m

Hamilton

Wed 26/8

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

1 stop20h 50m

C$ 643

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/7

Showing 1-10 of 60 resultsSorted by cheapest first
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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

What is the cheapest month to book a flight from San Francisco to Toronto?

Currently, January is the cheapest month in which you can book a flight from San Francisco to Toronto (average of C$ 543). Flying from San Francisco to Toronto in December is currently the most expensive (average of C$ 893). 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 21 July 2026.

It’s typically best to fly out from San Francisco to Toronto at noon. Doing so could potentially save you 23% on the flight price compared to flying in the evening, which is usually more expensive.

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 21 July 2026.

The most flights from SFO to YTO are scheduled on a Monday (24 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (23 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 75% 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$ 296.

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 Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 6h 59m.

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 Chicago (ORD) offer the fastest connection on this route, with an average layover time of 0h 48m.

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

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 78 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 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 18 July 2026.

Travelers seeking maximum savings on their San Francisco to Toronto flight should consider departing on Sunday mornings 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.

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 21 July 2026.
Check out reviews from past customers who have flown with Porter Airlines,United Airlines, andAir Canada 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
448 reviews
Check prices

Food

7.5

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Porter Airlines
8.0
Very good
448 reviews
Porter Airlines
8.0
Very good
448 reviews
Check prices

Food

7.5

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
United Airlines
7.4
Good
10,014 reviews
Porter Airlines
8.0
Very good
448 reviews
Check prices

Food

7.5

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats
Air Canada
7.1
Good
11,363 reviews
Porter Airlines
8.0
Very good
448 reviews
Check prices

Food

7.5

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Shannon,Jul 2026

YQT - YOW

Seats need to be a bit bigger & I'm not impressed that you have to pay to change seats

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 17.7 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 23 daily outbound flights to Toronto from 5 different airlines.

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

    For as low as C$ 595, 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$ 266. Other airlines that can offer you cheap pricing are WestJet, from C$ 294, and Porter Airlines, from C$ 359. Air Canada is currently priced 61% 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$ 161), Porter Airlines (C$ 188), and Air Transat (C$ 215).

  • 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 - Toronto Region of Waterloo Intl.

  • 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 Brussels Airlines (82%), Singapore Airlines (66%) and Austrian Airlines (65%).

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

    Looking at all options, your cheapest flight can be booked for C$ 233. While the most popular route (San Francisco - Toronto Pearson Intl) can be booked for C$ 424 on average, our data indicates C$ 688 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, January is the cheapest month in which you can book a flight from San Francisco to Toronto (average of C$ 543). Flying from San Francisco to Toronto in December is currently the most expensive (average of C$ 893). 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
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Los Angeles to Toronto Island flights
Las Vegas to Pearson Intl flights
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Ontario to Pierre Elliott Trudeau Intl flights
San Diego to Pierre Elliott Trudeau Intl flights
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Los Angeles to Ottawa flights
Los Angeles to Region of Waterloo Intl flights
San Francisco to Hamilton flights
Palm Springs to Pearson Intl flights
Las Vegas to Pierre Elliott Trudeau Intl flights
Fresno to Pearson Intl flights
Santa Ana to Pierre Elliott Trudeau Intl flights
Burbank to Pearson Intl flights
San Jose to Pierre Elliott Trudeau Intl flights
Sacramento to Pierre Elliott Trudeau Intl flights
San Diego to Ottawa flights
Burbank to Pierre Elliott Trudeau Intl flights
Las Vegas to Region of Waterloo Intl flights
Santa Ana to Ottawa flights
Oakland to Pierre Elliott Trudeau Intl flights
Reno to Pearson Intl flights
Los Angeles to Hamilton flights
San Francisco to Ottawa flights
Tijuana to Pearson Intl flights
Medford to Pearson Intl flights
Las Vegas to Hamilton flights
Sacramento to Ottawa flights
San Jose 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 21 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 266AverageC$ 833FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 294AverageC$ 448FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Porter AirlinesCheapestC$ 359AverageC$ 598FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air TransatCheapestC$ 500AverageC$ 902FlexibilityNo cancel feeOn-time50%
Search Air Transat flights
United AirlinesCheapestC$ 542AverageC$ 871FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from 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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