When exiting the airport you will find taxis waiting between Exit 2 and Exit 3. You should get in the queue and when your turn comes the policeman in charge for the queue will signal you to get into the next available taxi. The fare from the airport to Athens centre is fixed:
- Day time (05:00-24:00) 38 €
- Night time (24:00-05:00) 54 €
The price includes everything. Luggage charge, tolls fee, VAT, meter start, airport charge etc. So, you don't have to pay anything more than the above. Still the taxi driver has to start the meter in case you decide to change destination and your drop-up point is not in Athens centre. The same fixed fares apply when you pick a taxi from Athens centre to go to the airport (see approximate fares).
Tourist? Be careful!
If you are a tourist, expect that most taxi drivers will try to charge you more than the normal fare. Many taxi drivers will not use the taximeter, so to avoid any misunderstandings and overcharging, its better to ask the driver to start the meter or ask how much is the fare to your destination before getting into the taxi.