Distance calculator

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

KLFI · Langley Air Force Base → KBOS · Boston Logan International Airport

Distance
401.8 nm
744.1 km · 462.3 mi
Course (true)
036°
Reverse course
220°
Flight time
0:55

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