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Route · North Atlantic

SFO San Francisco ⇄ LHR London

San Francisco International Airport (United States) and London Heathrow Airport (United Kingdom): great-circle distance, estimated scheduled flight time each way, time difference and jet lag.

Distance8,616 km5,354 mi4,652 nautical miles
SFO → LHR10 h 20 minestimated block time
LHR → SFO11 h 20 minestimated block time
Clock change+7 hLondon vs San Francisco, today
Great-circle route from San Francisco (SFO) to London (LHR)SFOSan FranciscoLHRLondon
The shortest path over the Earth’s surface (great circle), drawn on a Natural Earth projection. Real flight paths bend around weather, winds and closed airspace.

Flight time each way

SFO → LHR

10 h 20 min

Estimated gate-to-gate scheduled time. Initial heading 33° (NNE).

Leave San Francisco Sat 7 Nov, 10:00 local → arrive London Sun 8 Nov, 04:20 local +1 day.

LHR → SFO

11 h 20 min

Estimated gate-to-gate scheduled time. Initial heading 316° (NW).

Leave London Sat 7 Nov, 10:00 local → arrive San Francisco Sat 7 Nov, 13:20 local.

SFO-bound flights are the slower direction by about 60 minutes in our estimate: the route runs partly east–west through latitudes where the prevailing westerly winds at cruise height are strong, so heading east rides a tailwind and heading west fights a headwind. How we estimate it.

Distance

Great-circle distance8,616 km · 5,354 mi · 4,652 nmi
Initial heading33° (NNE) from SFO; 316° (NW) from LHR
Farthest from the equator64.6°N — the path arcs north of both airports
Crossesneither the equator nor the 180th meridian
Share of the longest possible trip43% of the 20,015 km to the far side of the Earth

Time zones and jet lag

SFOAmerica/Los_Angeles — UTC−7 now; UTC−8 standard time, UTC−7 during daylight saving time
LHREurope/London — UTC+0 now; UTC+0 standard time, UTC+1 during daylight saving time
DifferenceLondon is 7 hours ahead of San Francisco today.

Jet lag, flying SFO → LHR. Your body clock has to move 7 hours earlier, like an eastward trip. A common rule of thumb is that the body clock adjusts by roughly one time zone a day, so expect up to about 7 days to fully adjust. Shifting earlier (as here) is usually the harder direction; morning daylight at the destination helps. Flying the other way, the shift is reversed.

General information, not medical advice.

The two airports

More routes from SFO and LHR

Routes of a similar length

Need a different pair? The flight-time calculator works for any two of 3,245 airports. Not covered: which airlines fly this route, schedules, fares and live status — that data is proprietary and we don’t guess it.

Photos on airport pages are credited there. Estimates are rounded to 5 minutes; typical error about 13 minutes (validation).