- Great circle
- 9,578 km
- 5,951 mi
- Estimated in the air
- 12h 24m
- block time
- Furthest from equator
- 53.5°N
- at 15% along
- One lap of Earth
- 23.9%
- of 40,075 km
Of the 292 routes catalogued here, this is the 52nd longest.
What the aircraft actually flies over
From London the path crosses Netherlands, then Germany, then Poland, then Belarus, then Russia, then Kazakhstan, then Uzbekistan, then Kyrgyzstan, then China, then India, then Myanmar, then Thailand.
The furthest the great circle gets from the equator is 53.5°N, 15% of the way along.
Flying the line that looks straight on a Mercator map — one constant compass bearing — would cover 10,079 km. That is 501 km further, about 5% more, and roughly 37m of extra flying.
Leaving London the aircraft points east (73°); it arrives into Bangkok heading south-east (142°). That is 69° of drift without a single turn — the compass moves because the path is a curve on a sphere, not because the aircraft does.
London to Bangkok, asked and answered
- How far is London to Bangkok?
- London to Bangkok (LHR to BKK) is 9,578 km, or 5,951 mi, measured as great circle distance between the two airports.
- How long is the flight from London to Bangkok?
- About 12h 24m in the air. That is an estimate from the distance at a typical airliner block speed, plus half an hour for taxi, climb and descent; published schedules vary with winds and routing.
- What route does a London to Bangkok flight take?
- The great circle passes over Netherlands, then Germany, then Poland, then Belarus, then Russia, then Kazakhstan, then Uzbekistan, then Kyrgyzstan, then China, then India, then Myanmar, then Thailand. It reaches 53.5°N at its furthest from the equator.
Where these numbers come from
Distances are computed from the two airports’ own coordinates, not looked up from published routes. Times are estimates, not schedules.
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