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LHR → SIN

London to Singapore: distance, flight time and the route it really takes

London Heathrow to Singapore Changi is 10,883 km of great circle — 6,762 mi — and an estimated 14h 01m in the air. It crosses from Europe to Asia.

Great circle
10,883 km
6,762 mi
Estimated in the air
14h 01m
block time
Furthest from equator
52.5°N
at 10% along
One lap of Earth
27.2%
of 40,075 km
The London to Singapore route drawn as a great circle arc on a globe

What the aircraft actually flies over

From London the path crosses United Kingdom, then Netherlands, then Germany, then Poland, then Belarus, then Ukraine, then Russia, then Kazakhstan, then Uzbekistan, then Afghanistan, then Pakistan, then India, then 1,823 km of open water, then Malaysia.

The furthest the great circle gets from the equator is 52.5°N, 10% of the way along.

Flying the line that looks straight on a Mercator map — one constant compass bearing — would cover 11,349 km. That is 466 km further, about 4% more, and roughly 35m of extra flying.

From

LHR

London Heathrow

London, United Kingdom · Europe

51.5°N, 0.5°W

Flights to London
To

SIN

Singapore Changi

Singapore, Singapore · Asia

1.4°N, 104.0°E

Flights to Singapore

How these numbers are worked out

The distance is the great circle between the two airports’ real coordinates — the shortest path over a sphere, and the measure airlines and loyalty programmes use. It is computed, not looked up from a table of published routes.

The time is an estimate derived from that distance, using the same arithmetic Orbit uses when you log a flight without timestamps: a typical airliner block speed of 500 mph plus thirty minutes for taxi, climb and descent. Real schedules run longer or shorter depending on winds, air traffic control routing and how far the gate is from the runway. Aircraft also do not fly perfect great circles — jet streams, airspace closures and ETOPS limits all bend the path, usually by a few percent.

Why the shortest path is a curve →

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