---
title: "Helsinki to Seoul (HEL → ICN): distance and flight time · Orbit"
description: "Helsinki to Seoul is 7,032 km (4,370 mi) great circle, an estimated 9h 14m in the air. The route, what it flies over, and why the short way is not the straight line on a map."
url: https://orbitflights.app/routes/hel-to-icn
---

HEL → ICN

# Helsinki to Seoul: distance, flight time and the route it really takes

Helsinki Vantaa to Incheon is 7,032 km of great circle — 4,370 mi — and an estimated 9h 14m in the air. It crosses from Europe to Asia.

**Great circle**
7,032 km
4,370 mi

**Estimated in the air**
9h 14m
block time

**Furthest from equator**
64.4°N
at 25% along

**One lap of Earth**
17.5%
of 40,075 km

Of the [292 routes catalogued here](https://orbitflights.app/routes), this is the 94th longest.

The Helsinki to Seoul route drawn as a great circle arc on a globe

## What the aircraft actually flies over

From Helsinki the path crosses Finland, then Russia, then Mongolia, then China, then North Korea.

The furthest the great circle gets from the equator is 64.4°N, 25% of the way along.

Flying the line that looks straight on a Mercator map — one constant compass bearing — would cover 7,670 km. That is 638 km further, about 9% more, and roughly 48m of extra flying.

Leaving Helsinki the aircraft points north-east (61°); it arrives into Seoul heading south-east (147°). That is 86° of drift without a single turn — the compass moves because the path is a curve on a sphere, not because the aircraft does.

One economy seat on it is about 996 kg of CO₂e each way, counting non-CO₂ warming.

[HEL–ICN carbon footprint →](https://orbitflights.app/tools/flight-carbon-calculator?from=HEL&to=ICN) [Map this route →](https://orbitflights.app/tools/flight-route-map?r=HEL-ICN)

From

HEL

## Helsinki Vantaa

Helsinki, Finland · Europe

60.3°N, 25.0°E

[HEL airport →](https://orbitflights.app/airports/hel)

To

ICN

## Incheon

Seoul, South Korea · Asia

37.5°N, 126.5°E

[ICN airport →](https://orbitflights.app/airports/icn) [Flights to Seoul →](https://orbitflights.app/flights-to/seoul)

## Helsinki to Seoul, asked and answered

**How far is Helsinki to Seoul?**
Helsinki to Seoul (HEL to ICN) is 7,032 km, or 4,370 mi, measured as great circle distance between the two airports.

**How long is the flight from Helsinki to Seoul?**
About 9h 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 Seoul flight take?**
The great circle passes over Finland, then Russia, then Mongolia, then China, then North Korea. It reaches 64.4°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.

[Why the shortest path is a curve →](https://orbitflights.app/blog/great-circle-routes-explained)

## Flown this one?

Orbit logs it in two taps and draws the arc on your own globe, along with every other flight you can remember. Free for your first 15.

[Download now](https://play.google.com/store/apps/details?id=com.qwertybit.orbit)

## Nearby routes

[HEL → NRT Helsinki to Tokyo 7,829 km](https://orbitflights.app/routes/hel-to-nrt) [SEA → ICN Seattle to Seoul 8,373 km](https://orbitflights.app/routes/sea-to-icn) [LHR → ICN London to Seoul 8,861 km](https://orbitflights.app/routes/lhr-to-icn) [SFO → ICN San Francisco to Seoul 9,085 km](https://orbitflights.app/routes/sfo-to-icn) [LAX → ICN Los Angeles to Seoul 9,625 km](https://orbitflights.app/routes/lax-to-icn) [ICN → BKK Seoul to Bangkok 3,669 km](https://orbitflights.app/routes/icn-to-bkk)

## Further reading

[How many miles do you have to fly around the world?](https://orbitflights.app/blog/how-many-miles-to-fly-around-the-world) [What is on the exact opposite side of the world?](https://orbitflights.app/blog/opposite-side-of-the-world) [What's actually worth counting in a flight log](https://orbitflights.app/blog/what-is-worth-counting-in-a-flight-log)

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Markdown copy of https://orbitflights.app/routes/hel-to-icn for language models and agents. Site index: https://orbitflights.app/llms.txt