As of late 2022, the network consists of across three primary lines:

The 3-day Tourist Ticket (€20) is popular as it includes a round trip to the airport and unlimited travel for 72 hours. Public Transport | The Official Athens Guide

A dedicated one-way ticket to/from the airport via Metro costs €9 .

Connects the port of Piraeus to the northern suburb of Kifissia , passing through central hubs like Monastiraki and Omonia.