Supadio Airport (IATA: PNK, ICAO: WIOO), formerly known as Sei Durian Airport or Sungai Durian Airport, is a domestic airport serving Pontianak, West Kalimantan, Indonesia. It is located 17 kilometres (11 mi) from Downtown Pontianak. The airport is managed by PT. Angkasa Pura II, and takes up 528 ha. The airport serves as the main point of entry to West Kalimantan. The airport serves domestic routes only as of mid-2023. The airport was named the best airport in Asia-Pacific in 2020 (2 to 5 million passengers per annum) by Airports Council International.

The name of the airport is derived from Lieutenant Colonel Supadio, an Indonesian Air Force officer who served Pangkowilud II Banjarmasin, which oversees the Sungai Durian Airbase (the previous name of the airport). Lieutenant Colonel Supadio died in an airplane crash with Colonel (PNB) Nurtanio in Bandung in 1966. The airport area and runway are also shared with the Supadio Airbase, a Type B airbase of the TNI-AU (Indonesian Air Force). It served as the homebase of the Skuadron Udara 1 of the Indonesian Air Force, which consists of a fleet of 18 Hawk 109/209.