Syros Island National Airport (Greek: Κρατικός Αερολιμένας Σύρου) (IATA: JSY, ICAO: LGSO) is an airport serving Syros Island in Greece. It is also known as Syros National Airport "Demetrius Vikelas" (Greek: Κρατικός Αερολιμένας Σύρου "Δημήτριος Βικέλας"), named for Demetrius Vikelas (1835–1908), a Greek businessman and writer born in Ermoupoli on the island of Syros. The airport was opened in 1991. Syros is part of the Cyclades island group in the Aegean Sea, located 78 nautical miles (144 km) southeast of Athens.