LHR → KUL
12 h 25 min
Estimated gate-to-gate scheduled time. Initial heading 79° (ENE).
Leave London Sat 7 Nov, 10:00 local → arrive Kuala Lumpur Sun 8 Nov, 06:25 local +1 day.
Route · Europe to Asia and Africa
London Heathrow Airport (United Kingdom) and Kuala Lumpur International Airport (Malaysia): great-circle distance, estimated scheduled flight time each way, time difference and jet lag.
12 h 25 min
Estimated gate-to-gate scheduled time. Initial heading 79° (ENE).
Leave London Sat 7 Nov, 10:00 local → arrive Kuala Lumpur Sun 8 Nov, 06:25 local +1 day.
13 h 55 min
Estimated gate-to-gate scheduled time. Initial heading 322° (NW).
Leave Kuala Lumpur Sat 7 Nov, 10:00 local → arrive London Sat 7 Nov, 15:55 local.
LHR-bound flights are the slower direction by about 90 minutes in our estimate: the route runs mostly 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.
| Great-circle distance | 10,605 km · 6,590 mi · 5,726 nmi |
|---|---|
| Initial heading | 79° (ENE) from LHR; 322° (NW) from KUL |
| Farthest from the equator | 52.3°N |
| Crosses | neither the equator nor the 180th meridian |
| Share of the longest possible trip | 53% of the 20,015 km to the far side of the Earth |
| LHR | Europe/London — UTC+0 now; UTC+0 standard time, UTC+1 during daylight saving time |
|---|---|
| KUL | Asia/Kuala_Lumpur — UTC+8 now; UTC+8 all year (no daylight saving time) |
| Difference | Kuala Lumpur is 8 hours ahead of London today; +8 h in January and +7 h in July because daylight saving time starts and ends on different dates (or not at all). |
Jet lag, flying LHR → KUL. Your body clock has to move 8 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 8 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.
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).