Kualanamu International Airport — Beringin, Indonesia

KNO opened in 2013 in Beringin, part of Deli Serdang Regency, replacing the old Polonia Airport that had sat uncomfortably close to downtown Medan, its runway hemmed in by encroaching city development in ways that had raised safety concerns for years. A dedicated airport railway now links the new terminal to central Medan, cutting what would otherwise be a lengthy road journey through North Sumatra's largest city down to a predictable ride of roughly forty minutes. Medan itself mixes Malay, Batak, Chinese, and Indian communities into one of Indonesia's most ethnically diverse major cities, a legacy of colonial-era plantation labor migration tied to the region's tobacco and rubber estates. KNO also functions as a common departure point for travelers heading toward Lake Toba, the enormous volcanic crater lake and Batak cultural heartland several hours south, even though a smaller dedicated airport now serves the lake more directly. International flights connect KNO to Malaysia, Singapore, and other nearby destinations.