Objective: Modern aviation combined with digitalism, has entered a rapidly changing transmutation phase, with the aim of allowing the integration of unmanned aircraft into airspace. The investigation aimed to characterize the location in the layer 150 m high (500´) and 300 high (1000´) above the surface of runway 03 at Humberto Delgado Airport, using data from the trajectories of manned aircraft. Method: We used overview probabilistic analysis of the end running 03 meeting between aircraft at Lisbon Airport, in Portugal. The trajectory data was obtained through the download of AIRAC (ICAO Annex 15, 2016) between June 21, 2024 and July 18, 2024, available on the EUROCONTROL ‘Data Demand Repository’ (DDR). Results and Discussion: The findings hold significance for an enhanced comprehension of the phenomena intrinsic to overview of the probabilistic analysis management of the end of running 03 meeting between aircraft at Lisbon Airport, in Portugal. Research Implications: This dynamic method of ensuring a standardized separation according to location makes it possible, as long as the operator or the manufacturer guarantees compliance with the specific technical requirements related to the certification if it is necessary in view of the risk, the operations of unmanned aircraft in the vicinity of the international airports in safe conditions for other airspace users. Originality/Value: This study contributes to the growing body of knowledge on the border between the management of airports based in better decision-making policies and can contribute something new for both professionals and policy makers in the formulation safety and airspace users.