Distance calculator

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

VVCI · Cat Bi International Airport → VTUD · Udon Thani International Airport

Distance
303.8 nm
562.6 km · 349.6 mi
Course (true)
228°
Reverse course
047°
Flight time
0:41

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