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
25 Jan
LHR
8:00 pm
London Heathrow airport
28h 15m
1 Stop
4:15 pm
+1
SFO
San Francisco airport
SWISS
26 Jan
SFO
3:20 pm
San Francisco airport
13h 15m
1 Stop
12:35 pm
+1
LHR
London Heathrow airport
329 USD
SWISS
SWISS
25 Jan
LHR
8:00 pm
London Heathrow airport
28h 15m
1 Stop
4:15 pm
+1
SFO
San Francisco airport
SWISS
26 Jan
SFO
3:20 pm
San Francisco airport
13h 15m
1 Stop
12:35 pm
+1
LHR
London Heathrow airport
329 USD
Norwegian
Norwegian
07 Nov
LGW
12:55 pm
London Gatwick airport
11h 00m
3:55 pm
SFO
San Francisco airport
Norwegian
08 Nov
SFO
8:10 am
San Francisco airport
15h 35m
1 Stop
7:45 am
+1
LGW
London Gatwick airport
332 USD
Iberia
Iberia
04 Jan
LHR
10:45 am
London Heathrow airport
11h 10m
1:55 pm
SFO
San Francisco airport
Iberia
11 Jan
SFO
12:35 pm
San Francisco airport
10h 25m
7:00 am
+1
LHR
London Heathrow airport
431 USD
Finnair
Finnair
12 Dec
LHR
3:05 pm
London Heathrow airport
11h 15m
6:20 pm
SFO
San Francisco airport
Finnair
23 Dec
SFO
12:35 pm
San Francisco airport
10h 25m
7:00 am
+1
LHR
London Heathrow airport
437 USD
Delta
Delta
08 Dec
LHR
4:15 pm
London Heathrow airport
11h 05m
7:20 pm
SFO
San Francisco airport
Delta
13 Dec
SFO
6:19 am
San Francisco airport
12h 41m
1 Stop
3:00 am
+1
LHR
London Heathrow airport
376 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
What is the cheapest month to fly to San Francisco?
February
The cheapest time of year to fly to San Francisco from London is February. Most expensive is July
What is the cheapest day to fly to San Francisco?
Thursday
The cheapest day of the week is typically Thursday. The most expensive is typically Sunday
When is the cheapest time to fly to San Francisco?
in the evening
London to San Francisco flights are approximately 5% more expensive at noon than in the evening
What is the cheapest airline that flies to San Francisco?
French Bee
French Bee, WestJet, and TAP AIR PORTUGAL are the most popular carriers operating from London to San Francisco
What is the cheapest route?
London Heathrow - San Francisco
Fly from London Heathrow to San Francisco for the best London - San Francisco flight prices
When is the cheapest time to book a flight to San Francisco?
58 days before
The cheapest time to buy a flight from London to San Francisco is approximately 58 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
Birmingham to San Francisco
Fastest flight time
13h 45m
Cheapest price
436 USD
Manchester to San Francisco
Fastest flight time
15h 15m
Cheapest price
460 USD

Flights from London to:

Flights to San Francisco from:

*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.