Union Island International Airport (IATA: UNI, ICAO: TVSU) is a small regional airport serving Union Island, the southernmost inhabited island of Saint Vincent and the Grenadines. It provides a vital air link between Union Island and other islands in the Eastern Caribbean, particularly for travelers headed to nearby Tobago Cays and Palm Island. The airport handles light aircraft and small turboprop operations, serving a modest volume of tourists and local residents. Its runway is relatively short, limiting operations to smaller regional aircraft types. The facility plays an important role in the local economy, which is heavily dependent on tourism and inter-island travel.