Distance calculator

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

CZEM · Eastmain River Airport → KBOS · Boston Logan International Airport

Distance
665.8 nm
1,233.1 km · 766.2 mi
Course (true)
150°
Reverse course
335°
Flight time
1:31

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