Cheap flights from London to San Francisco

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Easily compare round trip flights from London to San Francisco

Below you can see the best fares for your round trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from London to San Francisco by changing tabs
Quickest
Cheapest
SWISS
SWISS
28 Nov
LHR
8:50 am
London Heathrow airport
15h 25m
1 Stop
4:15 pm
SFO
San Francisco airport
SWISS
03 Dec
SFO
11:35 am
San Francisco airport
10h 30m
6:05 am
+1
LHR
London Heathrow airport
352 USD
SWISS
SWISS
28 Nov
LHR
8:50 am
London Heathrow airport
15h 25m
1 Stop
4:15 pm
SFO
San Francisco airport
SWISS
03 Dec
SFO
11:35 am
San Francisco airport
10h 30m
6:05 am
+1
LHR
London Heathrow airport
352 USD
British Airways
British Airways
02 Nov
LHR
2:55 pm
London Heathrow airport
11h 15m
7:10 pm
SFO
San Francisco airport
British Airways
06 Nov
SFO
7:40 am
San Francisco airport
13h 35m
1 Stop
5:15 am
+1
LHR
London Heathrow airport
366 USD
Norwegian Air UK
Norwegian Air UK
01 Sep
LGW
2:30 pm
London Gatwick airport
11h 00m
5:30 pm
SFO
San Francisco airport
Norwegian Air UK
29 Sep
SFO
11:30 am
San Francisco airport
10h 10m
5:40 am
+1
LGW
London Gatwick airport
448 USD
British Airways
British Airways
02 Nov
LHR
2:55 pm
London Heathrow airport
11h 15m
7:10 pm
SFO
San Francisco airport
British Airways
06 Nov
SFO
7:40 am
San Francisco airport
13h 35m
1 Stop
5:15 am
+1
LHR
London Heathrow airport
366 USD
British Airways
British Airways
02 Nov
LHR
2:55 pm
London Heathrow airport
11h 15m
7:10 pm
SFO
San Francisco airport
British Airways
06 Nov
SFO
7:40 am
San Francisco airport
13h 35m
1 Stop
5:15 am
+1
LHR
London Heathrow airport
366 USD

How to get the cheapest flight ticket from London to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
CHEAPEST MONTH TO FLY
February
The cheapest time of year to fly to San Francisco from London is February. Most expensive is July
CHEAPEST DAY TO FLY
Monday
The cheapest day of the week is typically Monday. The most expensive is typically Saturday
CHEAPEST TIME TO FLY
in the evening
London to San Francisco flights are approximately 115% more expensive at noon than in the evening
CHEAPEST AIRLINE
Lufthansa
Lufthansa, WestJet, and TAP AIR PORTUGAL are the most popular carriers operating from London to San Francisco
CHEAPEST ROUTE
London Heathrow - San Francisco
Fly from London Heathrow to San Francisco for the best London - San Francisco flight prices
CHEAPEST TIME TO BOOK
60 days before
The cheapest time to buy a flight from London to San Francisco is approximately 60 days to departure
60
Days before departure
0

Flight information for London to San Francisco (SFO - LON)

Find info about flight duration, direct flights, and airports for your flight from London to San Francisco
Fastest flight time
11h 0m
The fastest flight from London to San Francisco takes 11h 0m.
Direct flights
Every day
Direct flights go from London to San Francisco every day.
Airports in San Francisco
1 airport
There is 1 airport near San Francisco: San Francisco (SFO)

Alternative routes for London to San Francisco

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Manchester to San Francisco
Fastest flight time
10h 55m
Cheapest price
457 USD

Flights from London to:

Flights to San Francisco from:

  • London
  • England
  • United Kingdom
  • Europe
*Flight prices to San Francisco are based on prices for economy tickets found by momondo users during searches within the last 72 hours. These prices may no longer be available.