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ICN → BKK

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

Incheon to Suvarnabhumi is 3,669 km of great circle — 2,280 mi — and an estimated 5h 04m in the air. Both ends are in Asia.

Great circle
3,669 km
2,280 mi
Estimated in the air
5h 04m
block time
Furthest from equator
37.5°N
at 0% along
One lap of Earth
9.2%
of 40,075 km

Of the 292 routes catalogued here, this is the 156th longest.

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

What the aircraft actually flies over

From Seoul the path crosses 697 km of open water, then China, then Thailand.

The furthest the great circle gets from the equator is 37.5°N, 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.

Leaving Seoul the aircraft points south-west (231°); it arrives into Bangkok heading south-west (219°). That is 11° of drift without a single turn — the compass moves because the path is a curve on a sphere, not because the aircraft does.

From

ICN

Incheon

Seoul, South Korea · Asia

37.5°N, 126.5°E

To

BKK

Suvarnabhumi

Bangkok, Thailand · Asia

13.7°N, 100.7°E

Seoul to Bangkok, asked and answered

How far is Seoul to Bangkok?
Seoul to Bangkok (ICN to BKK) is 3,669 km, or 2,280 mi, measured as great circle distance between the two airports.
How long is the flight from Seoul to Bangkok?
About 5h 04m 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 Seoul to Bangkok flight take?
The great circle passes over 697 km of open water, then China, then Thailand. 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 →

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