Distance calculator

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

CYSB · Sudbury Airport → KBOS · Boston Logan International Airport

Distance
490.7 nm
908.9 km · 564.7 mi
Course (true)
118°
Reverse course
305°
Flight time
1:07

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