Kassos is connected by ferry to the port of Piraeus (17โ22.5 hours), arriving at the port of Fri. The island can also be reached from Rhodes (8 hours), Karpathos (1 hour from Finiki), Crete (2.5 hours from Sitia), and some Cyclades (e.g. Santorini: 13 hours). Most ferries make stops at major islands along the route.
The main ferry companies are Anek Lines, Aegeon Pelagos, and G.A. Ferries. For booking, refer to directferries.com.
Kassos has Aghia Marina Airport with short domestic flights from Karpathos (15 minutes) and Crete/Sitia (25 minutes) via Olympic Air or Aegean Airlines. For flight booking, visit skyscanner.com.
Connections, both by sea and air, are more frequent during the summer season; always check availability if travelling in other periods.