Distance calculator

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

KPHN · St Clair County International Airport → KPSM · Portsmouth International Airport at Pease

Distance
513.7 nm
951.4 km · 591.2 mi
Course (true)
085°
Reverse course
273°
Flight time
1:10

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