Distance calculator

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

CYSL · Saint-Léonard Airport → KBOS · Boston Logan International Airport

Distance
318.0 nm
588.9 km · 366.0 mi
Course (true)
206°
Reverse course
024°
Flight time
0:43

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