The following years were characterized by rapid air traffic growth, which required multifold capacity increase – a separate terminal was appointed for domestic flights to Varna, Burgas, Ruse, Gorna Oryahovitsa, Vidin, and Targovishte, and later a new building was constructed to accommodate passengers arriving on international flights. Meanwhile, the runway underwent repair works several times, new aeronautical equipment was installed corresponding to the dynamically changing requirements of modern turbo-jet civil aviation.

In the 90s “Sofia Airport” was established as an independent entity by a Decision of the Council of Ministers of the Republic of Bulgaria.