All year round there are daily ferry routes from the port of Killini, on the Peloponnese coast, to Zakynthos. Two companies operate : Ionian Group and KefalonianLines
During the tourist season (May to October) there is a ferry connection (Ionion Pelagos ferries) between Pesada in Kefalonia and St.Nikolas port in Zakynthos.
All year round there are daily car-ferry routes from Venice, Ancona, Bari or Brindisi (Italy) to Patras (Greece). Then by car or bus (KTEL) to Killini's port (approx. 1h) and by ferry to Zakynthos.
Companies operating from Italy to Patras,Greece :Super Fast Ferries, Anec Lines Ferries,
Minoan LInes Ferries