Within the EU project OLGA (Holistic & Green Airports), one of the main objectives is to reduce emissions and develop decarbonizing solutions for airside operations. In this paper, we will describe the proposed methodology and newly developed procedures for the usage of unmanned aerial vehicle (UAV) for the inspection of airport airside areas. Such an approach may bring significant benefits: i) Reduction of air pollution (in line with European Green Deal policy), ii) Better efficiency of infrastructure inspection and higher accuracy of detection of anomalies on operational surfaces, iii) Multiple measurements (inspection) per one drone operation and iv) Improvement of the Safety Management System at the airport. To enable safe and secure usage of UAV in a daily routine inspection, it was necessary to develop a workflow for the integration of UAV into airport operations, which included the development of AD-HOC structure / procedure. The analysis of the whole process, which includes the collaboration between air traffic control, civil aviation agency, airport operational and asset management, is presented in the paper. The application of UAV for the inspection of the airside areas is analysed and presented with the aim of assessing the feasibility, capability, cost efficiency and environmental impacts of the implementation of UAV into daily, monthly and/or annual inspection procedures at the airports.