Cheap Flights to San Francisco International

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Flights to San Francisco International in 2021

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
Popular inDecemberHigh demand for flights, 7% potential price rise
Cheapest inAugustBest time to find cheap flights, 2% potential price drop
Average priceC$ 580Average for round-trip flights in April 2021
Round-trip fromC$ 488From Toronto to San Francisco
One-way fromC$ 236One-way flight from Toronto to San Francisco

Cheapest prices for San Francisco International flights by month

The cheapest ticket to San Francisco International found for each month in 2021 based on historical flight searches by Cheapflights users.
January
C$ 428
February
C$ 442
March
C$ 492
April
C$ 472
May
C$ 452
June
C$ 500
July
C$ 525
August
C$ 509
September
C$ 437
October
C$ 458
November
C$ 517
December
C$ 549
Currently, the cheapest month for flights to San Francisco International is January. The most expensive month for flights is December. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

When is the best time to fly to San Francisco International?

Average San Francisco flight ticket prices and weather conditions for 2021 and 2022 by month.
YTO - SFO
Price
C$ 428 - C$ 678
SFO
Temperature
15 - 25 °C
SFO
Rainfall
0 - 120 mm
Flying to San Francisco International in January is usually considered the best time to fly. However, you will find other deals are always available year round. September tends to be the warmest period in San Francisco International so if you are looking for sun or warmer climates then look to fly around this time. December is the wettest if you need to factor this in to your plans.

When is the best time to book a flight to San Francisco International?

The best time to book flights to San Francisco International is 59 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Which day is cheapest to fly to San Francisco International?

The cheapest flights to San Francisco International are usually found when departing on a Tuesday. The departure day with the highest cost at present is Sunday.

What time of day is cheapest to fly to San Francisco International?

San Francisco International flights can be made cheaper if you choose a flight at noon. Booking a flight in the evening will likely mean higher prices.

San Francisco International Airport (SFO) is located 13 miles (21 km) south of downtown San Francisco and is the largest airport in the Bay Area and the second-busiest airport in California.

Comprising four terminals – Terminals 1, 2, 3 and the International Terminal – that form a ring around a multi-story Domestic Airport parking garage, San Francisco International is easy to navigate. Terminals 1-3 handle all domestic flights, while the International Terminal mainly manages international flights. Customs, immigrations and baggage claims are generally fast; staff are friendly, signage is good and transport to and from the airport is excellent.  Delays are common, though, due to the region’s adverse weather patterns; however, there are plans to extend the runways in order to aid aircraft flying in low visibility conditions.

San Francisco International is clean and modern. With its newly revamped Terminal 2 housing an award-winning aviation museum and library, along with an extensive array of retail, dining, entertainment and health establishments, it is truly a world-class facility.

Flights to San Francisco International Airport comes from a number of destinations worldwide, including Toronto, Paris, Tokyo, London, Hong Kong, Seoul, Lima, Frankfurt, Singapore, San Salvador, Beijing, Mexico City, Sydney and Cancun, in addition to numerous domestic routes.

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Alternative, similarly priced destinations

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Find the best prices for you!

Cheap tickets to San Francisco International found by our users in Canada as recently as April 15, 2021.

Cheapest flights to USA

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