Distance calculator

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

KSPF · Black Hills Airport-Clyde Ice Field → KGFK · Grand Forks International Airport

Distance
344.4 nm
637.7 km · 396.3 mi
Course (true)
050°
Reverse course
235°
Flight time
0:47

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