Distance calculator

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

RJDA · Amakusa Airport → RKSS · Seoul Gimpo International Airport

Distance
346.8 nm
642.2 km · 399.1 mi
Course (true)
332°
Reverse course
150°
Flight time
0:47

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