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SYD → SIN

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

Sydney Kingsford Smith to Singapore Changi is 6,293 km of great circle — 3,911 mi — and an estimated 8h 19m in the air. It crosses from Oceania to Asia.

Great circle
6,293 km
3,911 mi
Estimated in the air
8h 19m
block time
Furthest from equator
33.9°S
at 0% along
One lap of Earth
15.7%
of 40,075 km
The Sydney to Singapore route drawn as a great circle arc on a globe

What the aircraft actually flies over

From Sydney the path crosses Australia, then 1,290 km of open water, then Indonesia, then 1,463 km of open water.

The furthest the great circle gets from the equator is 33.9°S, 0% of the way along.

Holding a single compass bearing the whole way would cover almost exactly the same ground, so on this route the flat map and the globe agree.

From

SYD

Sydney Kingsford Smith

Sydney, Australia · Oceania

33.9°S, 151.2°E

Flights to Sydney
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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