Madrid-Cuatro Vientos Airport (ICAO: LECU) is a general aviation aerodrome located in the southwestern outskirts of Madrid, Spain. It is widely recognized as one of the oldest continuously operating airports in Spain, with roots stretching back to the early twentieth century. The airport does not handle scheduled commercial passenger flights; instead it serves private aircraft, flight training schools, aero clubs, and light aircraft operations. It is managed by AENA, Spain's national airports authority. Cuatro Vientos has significant historical importance in Spanish aviation history, having been a major military and civil aviation hub in the early decades of flight. Today it remains an active hub for general aviation enthusiasts and training organizations in the Madrid metropolitan area.