Distance calculator

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

KIAD · Washington Dulles International Airport → CYOS · Owen Sound / Billy Bishop Regional Airport

Distance
371.2 nm
687.4 km · 427.1 mi
Course (true)
337°
Reverse course
155°
Flight time
0:51

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