Athens International Airport is not only the world's first BOOT* project in the airport sector but also a good example of successful public-private partnership. AviAlliance has a stake of just over 40 percent in the Greek capital's airport, with five percent being held by a private investor and 55 percent by the Greek state. In February 2019, the procedure for the extension of the concession for Athens International Airport by 20 years until 2046 was successfully completed.

The airport serving the Greek capital, which commenced operations in 2001, has been the frequent recipient of awards: The most recent award Athens International Airport has won is the prestigious ACI EUROPE Best Airport Awards 2023 as the best airport in Europe in the category of airports with 25 to 40 million passengers per year.

In spring 2020, the quality of stay for passengers at Athens International Airport was further enhanced when an expansion of the main terminal building was opened. As well as additional check-in counters and an enlarged area for passport control, numerous stores, a wide range of catering outlets, and new lounges offer passengers even more comfort and convenience.