Aviation emissions directly affect the troposphere and stratosphere layers of the atmosphere. Growing vehicle fleets, an increase in the number of flights, and growing airports have negative effects on ambient air quality. This study aims to determine the air pollution caused by emissions arising from domestic flights of Turkey and to express them via the Geographic Information Systems (GIS). Within the scope of this study, the aviation emis-sions of SO2, CO2, CO, NOx, NMVOC, CH4, N2O, and PM2.5 are determined. Emission factors, published by the EMEP/EEA emission inventory guidebook, are utilized in the study. Activity statistics are obtained from non-scheduled flight statistics published by the General Directorate of State Airports Authority and from several websites. The flight routes and spatial positions of the airports are transferred to the GIS environment. In the compilation of the inventory, both airport activities (landing, takeoff, and taxi), and cruise emissions are considered separately. Tier 3A methodology is applied in inventory calculations for the first time for Turkish domestic flights. With the aid of spatial analysis, aviation emissions are distributed over Turkish cities. According to the results, the total emissions were calculated as 1.67 million tons CO2, 6472.23 tons NOx, 2839.03 tons CO, and 80.52 tons PM2.5. Cruise emissions contributed to 43.8%, 37.1%, 16.5%, and 57.9% of total CO2, NOx, CO, and PM2.5 emissions, respectively. Besides, thematic maps of total emissions reveal the impacts of aviation emissions on the cities. Some cities without airports have been affected by cruise emissions.