Air navigation services charges are levied for en route and terminal services. 

En route charges are levied for each flight operated in accordance with the Instrument Flight Rules (IFR), in accordance with the procedures set out in the International Civil Aviation Organization's Standards and Recommended Practices, at ATHINAI FIR / HELLAS UIR.

Terminal charges are levied for each flight departing from Athens International Airport "Eleftherios Venizelos".