how long is flight from sfo-lhr
Flying time from LHR to SFO. The total flight duration from LHR to SFO is 11 hours, 14 minutes. This assumes an average flight speed for a commercial airliner of 500 mph, which is equivalent to 805 km/h or 434 knots. It also adds an extra 30 minutes for take-off and landing. Your exact time may vary depending on wind speeds.