Distance calculator

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

KPHH · Robert F Swinnie Airport → KIAD · Washington Dulles International Airport

Distance
344.7 nm
638.3 km · 396.7 mi
Course (true)
016°
Reverse course
198°
Flight time
0:47

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