What is Great Circle Distance?
The Great Circle distance is the shortest distance between two points on the surface of a sphere. Pilots and flight planners use this distance, though actual flight paths are adjusted for weather, airspace, and wind.
Measure the flight distance between any two airports.
The Great Circle distance is the shortest distance between two points on the surface of a sphere. Pilots and flight planners use this distance, though actual flight paths are adjusted for weather, airspace, and wind.