Fly from
Route
Depart
Return
Price
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Sun 15/3
19:30-15:35
1 stop27h 05m
San Francisco
Sat 21/3
17:40-17:40
1 stop17h 00m
LondonSan Francisco
STN - SFO
STNSFO
London Stansted
Thu 20/11
10:55-12:40
2 stops33h 45m
San Francisco
Thu 27/11
14:40-00:15
2 stops25h 35m
LondonSan Francisco
LGW - SFO
LGWSFO
London Gatwick
Wed 4/2
09:35-16:05
2 stops62h 30m
San Francisco
Wed 18/2
16:35-09:50
1 stop33h 15m
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Thu 4/12
15:35-14:35
2 stops31h 00m
San Francisco
Sun 11/1
16:40-16:00
1 stop15h 20m
LondonSan Francisco
LTN - SFO
LTNSFO
London Luton
Fri 5/12
05:50-15:35
1 stop17h 45m
San Francisco
Tue 9/12
17:20-20:05
1 stop18h 45m
LondonSan Francisco
STN - SFO
STNSFO
London Stansted
Tue 25/11
08:30-15:35
1 stop15h 05m
San Francisco
Tue 2/12
17:20-18:20
1 stop17h 00m
LondonSan Francisco
LTN - SFO
LTNSFO
London Luton
Mon 12/1
08:50-15:35
1 stop14h 45m
San Francisco
Sat 17/1
17:20-18:15
1 stop16h 55m
LondonSan Francisco
LHR - SFO
LHRSFO
London Heathrow
Tue 2/12
12:05-16:30
1 stop36h 25m
San Francisco
Tue 9/12
17:25-12:00
Nonstop10h 35m
LondonSan Francisco
STN - SFO
STNSFO
London Stansted
Fri 5/12
06:30-15:35
1 stop17h 05m
San Francisco
Tue 9/12
17:20-14:20
1 stop13h 00m
LondonSan Francisco
STN - SFO
STNSFO
London Stansted
Fri 5/12
15:15-14:35
3 stops31h 20m
San Francisco
Thu 11/12
16:40-23:20
3 stops22h 40m
Booking 51 days in advance of your planned departure date is, on average, the best time to get cheap flights to San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
On average, a flight from London to San Francisco takes 15 hours 53 minutes. Flights to San Francisco from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.
Users looking for the lowest fares to San Francisco should consider flying on Friday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday evenings, when prices are usually at their highest.
The most flights from London to San Francisco are scheduled on a Monday (31 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (31 on average).
The most popular airlines flying from London to San Francisco are Virgin Atlantic, British Airways and Lufthansa.
The cheapest airlines flying from London to San Francisco are Delta, Air Canada and Aer Lingus.
In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.
If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Abisola,Oct 2025
LOS - CDG
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Abisola,Oct 2025
LOS - CDG
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Abisola,Oct 2025
LOS - CDG
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Abisola,Oct 2025
LOS - CDG
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Abisola,Oct 2025
LOS - CDG
Boarding
Entertainment
Comfort
Crew
Food
Overall
Reviews
Abisola,Oct 2025
LOS - CDG
San Francisco International Airport is located 21km (13 miles) 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-storey Domestic 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.
When you search for this flight to San Francisco, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights to San Francisco for you. Better yet — we are completely free to use.
Users can book flights with no change fees policies with our dedicated filters. Book flights to San Francisco flexibly with Cheapflights today.
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