The development of the EU air transport market is based on the use of a complex structure of institutional regulation and various types of multilateral agreements: "European Common Aviation Area", "Open Skies", "Horizontal" as well as "Common Aviation Area" and "Euro-Mediterranean Aviation Agreement". The article is aimed at disclosing the essence and systematization of key features of integration processes in the field of air transport of the European Union, as well as in its relations with neighbouring countries, including Ukraine, which has intensified its actions on the way to the European Common Aviation Area. Based on using the systematic approach as well as methods of comparative law, logical and historical, the identification of the essence of the multilateral agreements and the systematization of their provisions made it possible to identify the patterns of development of European aviation integration and to highlight three clusters of international agreements which the EU uses to implement its external aviation policy.The assessment of the current state of implementation of the relevant EU Directives and Regulations into the legislation of Ukraine in detail for each specialized component showed directions for further development for integration into the European common aviation area.