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Tips and tricks to help you find cheap flights from London Heathrow to San Francisco

Favourite airline: United Airlines
12 % of travellers choose to book flights on this route with United Airlines, Austrian Airlines and Virgin Atlantic.
United Airlines
7 %
Austrian Airlines
3 %
Virgin Atlantic
2 %
Tip: book 3 months before departure
The best time to find a cheap flight on this route is 3 months before travel. Save up to 38 %.
79 days before departure
Cheapest weekday: Monday
On this route, flights are cheapest on Monday when a ticket costs £250.00 on average.
Direct flights are more expensive
Flights with a stopover are on average £11.00 cheaper than direct flights.
non stop flight
1 stop
2 stops
11h 15min
25h 23min
19h 34min
The favourite connection is non-stop
Flights from London Heathrow to San Francisco are most frequently booked as a direct flight.
Direct flights
11h 15min, from £261
32 %
1 stopover Frankfurt-Main
19h 30min, from £255
7 %
1 stopover Dublin
27h 25min, from £386
6 %
Flight information London Heathrow - San Francisco
Cheap direct flights
Flight details London Heathrow - San Francisco
  • Flight duration: min. 11:10 / max. 11:25
  • Distance: 8625 km
  • Flights per week: 47
  • Return flight duration: min. 10:15 / max. 10:35