Guillermo León Valencia Airport — Popayán, Colombia

Guillermo León Valencia Airport (PPN) serves Popayán, the historic colonial capital of Cauca department in southwestern Colombia, known for its well-preserved white-washed architecture and elaborate Holy Week processions. PPN is named after a former Colombian president who was born in the city. The airport handles domestic flights connecting Popayán to Bogotá and other major Colombian cities, supporting tourism tied to the city's colonial heritage as well as regional trade and administrative travel. PPN's location amid the Andean highlands means flight operations can occasionally be affected by mountain weather patterns, a common factor for airports serving Colombia's interior highland cities.