GCMap is a free great circle map — the fastest way to plot flight routes between airports, calculate distances in nautical miles, and visualize great circle paths on an interactive world map. Search by IATA code (SFO-JFK), "to" phrasing (JFK to NRT), or city name (London-Paris). A modern great circle mapper for aviation enthusiasts and travel planners.
New here? Read what a great circle map is or browse popular route distances.