The proastiakos ("suburban"), a light-rail network offering travelers a direct link from Athens airport to Corinth for EUR 8, is introducing Athenians to the concept of commuting. The trains now serve the city's northern and eastern suburbs as well as western Attica. The Athens-to-Corinth fare is EUR 6; lower fares apply for points in between. Upgrades are also being made to the segments linking Athens with Halkida and Thebes. If you plan on taking the train while in Athens, call the Greek Railway Organization (OSE) to find out which station your train leaves from, and how to get there. At this writing, Stathmos Peloponnisou, where the trains from the Peloponnese arrive, has been temporarily closed and operations transferred to the Ayii Anaryiri station. Trains from the north and international trains arrive at, and depart from, Stathmos Larissis, which is connected to the metro. If you want to buy tickets ahead of time, it's easier to visit a downtown railway office.
Greek Railway Organization (OSE) www.ose.gr. OSE buses. Proastiakos. Railway Offices. Stathmos Larissis. Stathmos Peloponnisou.