Cheap flights from London to San Francisco International

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The best prices from London to San Francisco International are usually found in November or February, booked 59 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

How to find the cheapest flight from
London (LON) to San Francisco International (SFO)

LON - SFO
Price
£299 - £605
Popular in July High demand for flights, 37% potential price rise
Cheapest in November Best time to find cheap flights, 22% potential price drop
Round-trip from £299 From London to San Francisco International
One-way from £165 One-way flight from London to San Francisco International
Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly return from London to San Francisco International?

Tuesday is generally a great day to depart. Flying on this day could help you save up to 14%.

How far in advance should I book a flight from London to San Francisco International?

Travellers have found it’s best to book a flight 57 days in advance to save up to 29% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 57 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London to San Francisco International 1-2 weeks in advance for as low as £330, or £381 for flights within the next 24 hours.

What is the cheapest month to fly from London to San Francisco International?

The best pricing can be found in the month of November. Prices to San Francisco International from London average £381. You can even find prices in November for less than £381, as users have found deals to San Francisco International from as low as £270. The month of July appears to be one of the more expensive times to travel to San Francisco International from London. Flying in the targeted month can save you up to 58%.

When is the cheapest time to fly from London to San Francisco International (LON - SFO)?

When flying from London to San Francisco International, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 4% versus a flight in the evening.

Cheap flights from London to San Francisco International in September, October 2020

The best prices found for LON to SFO flights in September, October
30 Oct - 16 Nov
£285pp
LGW
London Gatwick
Multiple airlines
   
2 STOPS
SFO
San Francisco
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LGW
London Gatwick
2 Oct - 17 Oct
£286pp
STN
London Stansted
Multiple airlines
   
2 STOPS
SFO
San Francisco
SFO
San Francisco
Multiple Airlines
   
2 STOPS
STN
London Stansted
15 Oct - 5 Nov
£286pp
LGW
London Gatwick
Multiple airlines
     
3 STOPS
SFO
San Francisco
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LGW
London Gatwick

London to San Francisco International 2020 flight deals

Cheap flights to San Francisco International from London found for this year
30 Oct - 12 Nov
£285pp
LGW
London Gatwick
Multiple airlines
   
2 STOPS
SFO
San Francisco
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LGW
London Gatwick
2 Oct - 17 Oct
£286pp
STN
London Stansted
Multiple airlines
   
2 STOPS
SFO
San Francisco
SFO
San Francisco
Multiple Airlines
   
2 STOPS
STN
London Stansted
15 Oct - 5 Nov
£286pp
LGW
London Gatwick
Multiple airlines
     
3 STOPS
SFO
San Francisco
SFO
San Francisco
TAP AIR PORTUGAL
 
1 STOP
LGW
London Gatwick

Direct flights to San Francisco International from London

Save time with London to San Francisco International direct flight deals
2 Nov - 25 Nov
£364pp
LHR
London Heathrow
Lufthansa
Direct
SFO
San Francisco
SFO
San Francisco
Lufthansa
Direct
LHR
London Heathrow
9 Mar - 23 Mar
£379pp
LHR
London Heathrow
Lufthansa
Direct
SFO
San Francisco
SFO
San Francisco
Lufthansa
Direct
LHR
London Heathrow
2 Nov - 25 Nov
£383pp
LHR
London Heathrow
Brussels Airlines
Direct
SFO
San Francisco
SFO
San Francisco
Brussels Airlines
Direct
LHR
London Heathrow

Last-minute flights from London to San Francisco International

Late deals on return flights to San Francisco International from London, departing today and this week
22 Sep - 22 Oct
£415pp
STN
London Stansted
Multiple airlines
   
2 STOPS
SFO
San Francisco
SFO
San Francisco
Multiple Airlines
   
2 STOPS
STN
London Stansted
22 Sep - 22 Oct
£424pp
LTN
London Luton
Multiple airlines
     
3 STOPS
SFO
San Francisco
SFO
San Francisco
Multiple Airlines
   
2 STOPS
LTN
London Luton
22 Sep - 22 Oct
£478pp
LGW
London Gatwick
Multiple airlines
   
2 STOPS
SFO
San Francisco
SFO
San Francisco
Multiple Airlines
   
2 STOPS
LGW
London Gatwick

One-way flights to San Francisco International from London

The cheapest one-way flights from London to San Francisco International
11:50 - 11:00
Multiple Airlines
2 stops
55h 10m
STN - SFO
Multiple Airlines
£128
Kiwi.com
04:15 - 02:00
Multiple Airlines
2 stops
29h 45m
STN - SFO
Multiple Airlines
£131
Kiwi.com
04:15 - 02:00
Multiple Airlines
2 stops
29h 45m
STN - SFO
Multiple Airlines
£132
Kiwi.com

Related info for your journey

Useful info, stats and facts about London to San Francisco International flights.

Flight FAQs

From London to San Francisco International

Are flight prices decreasing from London to San Francisco due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both London and San Francisco for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from London to San Francisco International for under £300 on Cheapflights?

Yes, there are multiple flights from London to San Francisco International for under £300. The cheapest flight booked recently is on Multiple Airlines for just £285, but on average you can expect to pay £301.

Are there direct flights from London to San Francisco International for under £400 on Cheapflights?

Cheapflights has 20 direct flights from London to San Francisco International under £400. A good price for a direct flight from London to San Francisco International is less than £398.

Are there last-minute flights available from London to San Francisco International for under £500?

There are currently 20+ open flights from London to San Francisco International within the next 7 days for less than £500.

Is London weather warmer or cooler than San Francisco?

Expect the weather to be around 25 °C on average in September. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in San Francisco is generally hotter than in London.

How long does is the flight from London to San Francisco International?

For as low as £282, Lufthansa can have you in San Francisco International from London in 11h 10m. Both multi-stop and direct flights can be found to your destination and back.

What is the cheapest airline to fly from London to San Francisco International return?

According to our current data, TAP AIR PORTUGAL (£242), offers the cheapest pricing from London to San Francisco International. TAP AIR PORTUGAL is priced at 36% lower than the current average price of a flight leaving 3 months from now.

Alternative routes for London to San Francisco International

Destination information for San Francisco International

Things to know before you go. Useful info for your trip from London to San Francisco International
Today's exchange rate
£1 = $1.30
Flight duration
10h 50m

Airports servicing London

Heathrow (LHR)
Luton (LTN)
Stansted (STN)
City (LCY)
Southend (SEN)

Airports servicing San Francisco

Hourly flight availability from London to San Francisco International

Afternoon Midday to 6 PM 58% of flight departures
Morning 6 AM to midday 41% of flight departures
Early morning Midnight to 6 AM 1% of flight departures
Evening 6 PM to midnight 0% of flight departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from London to San Francisco International
Sunday
12 daily flights
Monday
12 daily flights
Tuesday
12 daily flights
Wednesday
12 daily flights
Thursday
12 daily flights
Friday
12 daily flights
Saturday
12 daily flights