Distance calculator

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

KIRS · Kirsch Municipal Airport → KBOS · Boston Logan International Airport

Distance
643.1 nm
1,191.0 km · 740.0 mi
Course (true)
082°
Reverse course
272°
Flight time
1:28

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