Distance calculator

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

VTSM · Samui International Airport → VTUN · Khorat Airport

Distance
344.4 nm
637.8 km · 396.3 mi
Course (true)
020°
Reverse course
200°
Flight time
0:47

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