As a transit in Athens is required for our flight from Santorini to Istanbul, we decided to make a two nights stop-over. We’ve booked our stay at Arethusa hotel because we can take the airport bus right to Syntagma Square, Athens town centre where the hotel is a three minutes walk from the bus stop.
As you exit Athens airport arrival terminal, to your far right (door 5), take the X95 bus for Syntagma Square. The journey takes about 45 minutes. There is a small ticket booth near where the buses stop and you can purchase your bus tickets there before boarding. If the booth is not manned, I’ve read you can pay to the driver as well (please check). The ticket cost €5 one way to Syntagma Square (taxi will set you back €35). Ensure that you validate the ticket by using the validating machine in the bus. Buses to other destinations also converge here .. example X96 to Piraeus.
You can buy the bus ticket in advanced like we did because we were at the airport a few days earlier for our transit to Santorini. The buses run 24 hours. You may want to check out further here for info on buses, metro & train. The last stop of the X95 bus is Syntagma Square and it’s opposite the Greek Parliament building. Once you get down here, it’s a matter of three minutes walk to Arethusa hotel. The metro also has a stop at Syntagma Square if you’ll be taking the metro from the airport.