- Great circle
- 14,508 km
- 9,015 mi
- Estimated in the air
- 18h 32m
- block time
- Furthest from equator
- 51.5°N
- at 100% along
- One lap of Earth
- 36.2%
- of 40,075 km
Of the 292 routes catalogued here, this is the 5th longest.
What the aircraft actually flies over
From Perth the path crosses 5,586 km of open water, then Sri Lanka, then India, then 1,632 km of open water, then Pakistan, then Iran, then Turkey, then 689 km of open water, then Russia, then Moldova, then Romania, then Ukraine, then Slovakia, then Czechia, then Germany, then Belgium, then United Kingdom.
The furthest the great circle gets from the equator is 51.5°N, 100% of the way along.
Flying the line that looks straight on a Mercator map — one constant compass bearing — would cover 14,768 km. That is 259 km further, about 2% more, and roughly 19m of extra flying.
Leaving Perth the aircraft points north-west (313°); it arrives into London heading west (273°). That is 40° of drift without a single turn — the compass moves because the path is a curve on a sphere, not because the aircraft does.
Perth to London, asked and answered
- How far is Perth to London?
- Perth to London (PER to LHR) is 14,508 km, or 9,015 mi, measured as great circle distance between the two airports.
- How long is the flight from Perth to London?
- About 18h 32m 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 Perth to London flight take?
- The great circle passes over 5,586 km of open water, then Sri Lanka, then India, then 1,632 km of open water, then Pakistan, then Iran, then Turkey, then 689 km of open water, then Russia, then Moldova, then Romania, then Ukraine, then Slovakia, then Czechia, then Germany, then Belgium, then United Kingdom. It reaches 51.5°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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