If you are a departing passenger from Athens International Airport and you need a boarding card or to drop off baggage, upon entering Main Terminal Building check the flight information monitors for check-in information of your flight.
You may find them by following the respective terminal signage.

In case you already have your boarding card & you don’t need to drop off baggage, you may proceed directly to your departure gate area as indicated on the flight information monitors by following the respective terminal signage.

Gates A1-A23 & Gates B1-B31 are located at the Main Terminal Building & Gates C15-40 are located at the Satellite Terminal Building. 

Access to the Satellite Terminal Building is granted only through the Main Terminal Building via underground link.

At the corridor next to check-in counter 70, follow the signage for departure gates C15-40, directing you to the escalators or elevator that lead you to the underground link. You may arrive at the Satellite Terminal Building by using the moving walkways in about 7minutes.

Extra time should be taken always into consideration for the required procedures before reaching your gate, such as Security Control & Passport Control depending on your destination.

Please check the flight information monitors for your gate details.

For further information, you may contact the nearest available Airport Information Counter or use any of the red courtesy phones in order to call the airport’s Call Centre.