The Slot Coordination unit of Sofia Airport is subordinate to the Executive Director and Board of Directors of the airport and is responsible to coordinate slots. The unit was set up in compliance with the provisions of Regulation (EEC) 95/93 of the Council of 18 January 1993. Sofia Airport is a level 2 schedules facilitated airport. Sofia Airport EAD is member of EUACA (European Airport Coordinators Association). The slot database of Sofia Airport is part of the overall database of the EUACА supported coordinated airports in the European Union.

Each operator has to make a request in an SMA (SCR) or GCR format.