Distance calculator

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

KIAD · Washington Dulles International Airport → KBOS · Boston Logan International Airport

Distance
358.1 nm
663.2 km · 412.1 mi
Course (true)
053°
Reverse course
237°
Flight time
0:49

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