Distance calculator

Great-circle distance. Enter an airport ICAO / IATA code or coordinates (for example 52.1657, 20.9671).

RKSS · Seoul Gimpo International Airport → RJFT · Kumamoto Airport

Distance
346.5 nm
641.7 km · 398.7 mi
Course (true)
144°
Reverse course
326°
Flight time
0:47

Straight great-circle distance, not a route. Course is true, not magnetic.