Kyllini and Poros: check both port names
The Kyllini to Kefalonia ferry covered here departs from Kyllini and arrives at Poros (Kefalonia). Levante Ferries names the line explicitly. Use that full destination when comparing a booking, arranging a collection or contacting a transport provider.
Leaving Kyllini
Confirm Kyllini on your ticket before starting the mainland leg. The same operator serves more than one route, so the company name alone is not enough to identify your ferry. Follow the directions given for your particular sailing and ask the operator if you are unsure which waiting area to use. This site has not verified an exact berth number, a car park tariff, a walk from a bus stop or the facilities at a particular quay; none is promised here.
Arriving at Poros, Kefalonia
KTEL Kefalonia describes Poros as a seaside settlement on Kefalonia and places it about 40 km from Argostoli. Arrival at Poros is therefore not arrival in Argostoli. If your accommodation or collection is elsewhere, name Poros as the ferry port and agree an onward plan. The distance is a geographic description from KTEL, not a transfer time or taxi quote.
Do not mix up two different places
Poros on Kefalonia is the destination in this guide. The Poros island associated with Piraeus is a different destination. Also check whether a service you are considering names Sami rather than Poros: the KTEL mainland routes list both port corridors, and they are not interchangeable boarding instructions.
Help and return planning
Use Levante Ferries for your ship, boarding point and travel arrangements: +30 210 9499400. Use KTEL Kefalonia for the coach leg: +30 26710 22281. Check the return booking independently rather than assuming the outbound details apply in reverse.
Sources: Levante Ferries: Kyllini–Poros, Kefalonia timetable · KTEL Kefalonia: Poros on Kefalonia · KTEL Kefalonia: Athens and Patra routes · Levante Ferries: e-ticket and boarding instructions