✈ BKK → LHR
12H 9M, 5,951 MI. THE AIRLINE OWES YOU SOMETHING. THEY WON'T GIVE IT.
Flight from Bangkok to London
From Suvarnabhumi (BKK), Thailand Asia → Heathrow (LHR), United Kingdom Europe
How long is the flight from Bangkok to London?
A nonstop flight from Bangkok (BKK) to London (LHR) takes about 12 hours 9 minutes, covering a great-circle distance of 5,951 miles (9,577 km). Actual scheduled time varies by airline, routing, and wind — expect ±15 to 30 minutes from this estimate.
Avg flight time
12h 9m
Nonstop, scheduled
Distance
5,951 mi
9,577 km · great-circle
Avg speed
788 km/h
Door-to-door including taxi
Time zones & jet lag
Bangkok timezone
UTC+7
Asia/Bangkok
London timezone
UTC+1
Europe/London
Time difference
-6h
6 hours behind
Jet lag (rough)
~4.2d
Westward — easier
CO₂ footprint per passenger
Economy class, single passenger. Source: DEFRA 2024 averages.
This flight emits roughly 3.6× the CO₂ of an equivalent train trip and 0.9× a car driven alone over the same distance.