Distance calculator

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

KPSM · Portsmouth International Airport at Pease → KBQR · Buffalo Lancaster Regional Airport

Distance
342.0 nm
633.4 km · 393.6 mi
Course (true)
271°
Reverse course
086°
Flight time
0:47

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