Distance calculator

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

KDYB · Summerville Airport → KBOS · Boston Logan International Airport

Distance
710.1 nm
1,315.1 km · 817.2 mi
Course (true)
036°
Reverse course
221°
Flight time
1:37

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