Koufonisia to Amorgos is the last leg of the classic Small Cyclades hop, from the flat, beach-ringed Koufonisia to the long, mountainous Amorgos, the easternmost big island of the group. The two feel very different: Koufonisia is all turquoise coves and bikes, Amorgos is about dramatic cliffs, hiking paths and two very different harbour villages.
The first thing to decide is which Amorgos port you want. Katapola, the main port on the west side, is the quick and frequent option: it has boats 6 to 7 days a week all year, and the fastest crossing takes just 25 minutes. Aegiali, in the north-east of the island, is served only by the little Express Skopelitis of Small Cyclades Lines, on 3 to 5 days a week, and the trip there takes about two and a half hours because the boat calls at other islands on the way. Book the port closest to where you are staying; the drive between them takes time.
Three companies share the Katapola crossing. Blue Star Ferries is the cheapest, from €5.50 when we checked; the Express Skopelitis is the everyday local lifeline, sailing most days of the year; and Seajets adds fast catamarans in the warmer months at a much higher price, from €28.70. On 12 August 2026, the day we sampled, there were three departures, at 12:40, 17:15 and 17:25.
This is a short, cheap crossing, so the main thing to plan is timing. Check which companies sail on your day, and remember that on windy summer days the small boats can run late. Amorgos has no airport, so if you are heading home afterwards, look at the onward boats from Katapola to Naxos, Santorini or Piraeus.