Distance calculator

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

CYOS · Owen Sound / Billy Bishop Regional Airport → KBOS · Boston Logan International Airport

Distance
448.3 nm
830.3 km · 515.9 mi
Course (true)
104°
Reverse course
291°
Flight time
1:01

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