Distance calculator

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

KMSL · Northwest Alabama Regional Airport → KIAD · Washington Dulles International Airport

Distance
548.9 nm
1,016.5 km · 631.6 mi
Course (true)
060°
Reverse course
246°
Flight time
1:15

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