Distance calculator

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

KGDW · Gladwin Zettel Memorial Airport → KBOS · Boston Logan International Airport

Distance
596.9 nm
1,105.5 km · 686.9 mi
Course (true)
095°
Reverse course
284°
Flight time
1:21

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