- Great circle
- 7,829 km
- 4,865 mi
- Estimated in the air
- 10h 14m
- block time
- Furthest from equator
- 67.3°N
- at 28% along
- One lap of Earth
- 19.5%
- of 40,075 km
Of the 292 routes catalogued here, this is the 82nd longest.
What the aircraft actually flies over
From Helsinki the path crosses Finland, then Russia, then China, then Russia, then 705 km of open water, then Japan.
The great circle reaches 67.3°N, inside the Arctic circle — which is why the route looks like a detour over the top of the world on a flat map, and like the obvious line on a globe.
Flying the line that looks straight on a Mercator map — one constant compass bearing — would cover 8,782 km. That is 953 km further, about 12% more, and roughly 1h 11m of extra flying.
Leaving Helsinki the aircraft points north-east (51°); it arrives into Tokyo heading south-east (152°). That is 101° of drift without a single turn — the compass moves because the path is a curve on a sphere, not because the aircraft does.
Helsinki to Tokyo, asked and answered
- How far is Helsinki to Tokyo?
- Helsinki to Tokyo (HEL to NRT) is 7,829 km, or 4,865 mi, measured as great circle distance between the two airports.
- How long is the flight from Helsinki to Tokyo?
- About 10h 14m 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 Helsinki to Tokyo flight take?
- The great circle passes over Finland, then Russia, then China, then Russia, then 705 km of open water, then Japan. It reaches 67.3°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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