Athens International Airport also known as "Elefthérios Venizélos", IATA: ATH, ICAO: LGAV), which began operation on 29th March 2001, is the only civilian airport that serves the city of Athens.

The airport is the major hub and base for Olympic Airlines, Greece's state-owned airline, and also for Aegean Airlines and serves more than 15 million travellers annually. It was named after the Greek politician Eleftherios Venizelos. The airport is becoming increasingly popular as a gateway to Southeast and East Asia, with flights to Bangkok, Singapore, and Beijing, and is the largest European gateway airport to the Middle East due to its proximity to the region.

Athens International Airport is located between the towns of Markopoulo, Koropi, Spata and Loutsa, about 20km east of Athens city centre (30km by road, due to intervening hills).

Main Terminal:

The Main Terminal Building handles the all intra-Schengen flights, as well as several non-Schengen flights. All check-in desks are located in the Main Terminal. It has three separate levels, one for arrivals, one for departures and a food court level complete with a view of the eastern runway.

Satellite Terminal:

The Satellite Terminal handles non-Schengen flights only. It is easily accessible through an underground link complete with moving walkways. In 2009, part of the Satellite Terminal was closed and a new above ground link to the midfield satellite terminal was completed by the end of 2010. The complex is now used as a Schengen facility. It has two levels, one for arrivals and the other for departures.