Distance calculator

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

KIAD · Washington Dulles International Airport → KASH · Nashua Airport / Boire Field

Distance
354.6 nm
656.7 km · 408.1 mi
Course (true)
048°
Reverse course
231°
Flight time
0:48

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