Kualanamu International Airport (Indonesian: Bandar Udara Internasional Kualanamu) (IATA: KNO, ICAO: WIMM) (often spelled as Kuala Namu and informally abbreviated KNIA) is an international airport serving Medan, Indonesia, and other parts of North Sumatra. It is located in the Deli SerdangRegency, 23 km east of downtown Medan. Kualanamu is the third-largest airport in Indonesia after Jakarta Soekarno–Hatta and Bandung Kertajati, and the fifth busiest airport in Indonesia as of 2018, as well as the first Indonesian airport to receive four stars by Skytrax.
The airport was opened to public on 25 July 2013, handling all flights and services from Polonia International Airport, an airport located at the heart of Medan which is deemed dangerous. The airport was built on the former site of an oil palm plantation of company Perkebunan Nusantara II Tanjung Morawa. The airport is expected to become the new international transit center in Sumatra and the western part of Indonesia. It is part of Indonesia's central government's program under "Masterplan to Accelerate and Expand Economic Development in Indonesia" (MP3EI) and one of the strategies for the ASEAN Single Aviation Market (ASEAN-SAM), an open skies policy among member-countries in the Southeast Asia region starting 2015.