The author examined how besieged Leningrad was provided with various cargoes in the period from September to December 1941. During this period, the Moscow and Northern special forces organized the transportation of food, equipment, weapons, and devices by air. The investigation centered on the establishment of the Khvoinaya-Leningrad line with aircraft of the Civil Air Fleet of the USSR, and on the locations of bases on the mainland and in the blocked city. Equally considered is the composition of the aviation groups, the total number of aircraft on the line by month, as well as statistics concerning repair and irrevocable losses. Based on materials from Moscow and St. Petersburg archives, statistical data are presented that characterize the entire process of the “air bridge”. Reports of the Civil Air Fleet, the Special Northern aviation group, and Leningrad airport, provide generalized data on the results of transport aviation activities in the autumn of 1941, including the number and composition of evacuate