--- title: "Tokyo to Seoul (HND → ICN): distance and flight time · Orbit" description: "Tokyo to Seoul is 1,210 km (752 mi) great circle, an estimated 2h 00m 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/hnd-to-icn --- HND → ICN # Tokyo to Seoul: distance, flight time and the route it really takes Tokyo Haneda to Incheon is 1,210 km of great circle — 752 mi — and an estimated 2h 00m in the air. Both ends are in Asia. **Great circle** 1,210 km 752 mi **Estimated in the air** 2h 00m block time **Furthest from equator** 37.5°N at 100% along **One lap of Earth** 3.0% of 40,075 km Of the [292 routes catalogued here](https://orbitflights.app/routes), this is the 239th longest. The Tokyo to Seoul route drawn as a great circle arc on a globe ## What the aircraft actually flies over From Tokyo the path crosses Japan, then 614 km of open water, then South Korea. The furthest the great circle gets from the equator is 37.5°N, 100% 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. Leaving Tokyo the aircraft points west (284°); it arrives into Seoul heading west (276°). That is 8° 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 179 kg of CO₂e each way, counting non-CO₂ warming. [HND–ICN carbon footprint →](https://orbitflights.app/tools/flight-carbon-calculator?from=HND&to=ICN) [Map this route →](https://orbitflights.app/tools/flight-route-map?r=HND-ICN) From HND ## Tokyo Haneda Tokyo, Japan · Asia 35.5°N, 139.8°E [HND airport →](https://orbitflights.app/airports/hnd) [Flights to Tokyo →](https://orbitflights.app/flights-to/tokyo) 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) ## Tokyo to Seoul, asked and answered **How far is Tokyo to Seoul?** Tokyo to Seoul (HND to ICN) is 1,210 km, or 752 mi, measured as great circle distance between the two airports. **How long is the flight from Tokyo to Seoul?** About 2h 00m 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 Tokyo to Seoul flight take?** The great circle passes over Japan, then 614 km of open water, then South Korea. It reaches 37.5°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. [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 [HND → OKA Tokyo to Naha 1,555 km](https://orbitflights.app/routes/hnd-to-oka) [ICN → PVG Seoul to Shanghai 822 km](https://orbitflights.app/routes/icn-to-pvg) [HND → CTS Tokyo to Sapporo 820 km](https://orbitflights.app/routes/hnd-to-cts) [HND → PVG Tokyo to Shanghai 1,738 km](https://orbitflights.app/routes/hnd-to-pvg) [HND → TPE Tokyo to Taipei 2,122 km](https://orbitflights.app/routes/hnd-to-tpe) [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) --- Markdown copy of https://orbitflights.app/routes/hnd-to-icn for language models and agents. Site index: https://orbitflights.app/llms.txt