The monograph is devoted to the study of the basic elements of organization of regional air travel in the Russian Federation and in the post-Soviet space. The structure of the monograph includes the results of research conducted in the period from 2020 to 2021, the fundamental ones are: analysis of the budget air transportation segment in the Republic of Kazakhstan; integration of passenger air transportation market within the Eurasian Economic Union; evaluation of the effectiveness of state support measures aimed at developing regional air services in the Russian Federation; prospects for the creation of a regional airline in the Republic of Crimea; problems of developing regional airports of Eurasia.