Ďurčo, Emília AlexandraChodelka, Frederik2025-10-152025978-80-554-2158-2https://drepo.uniza.sk/handle/hdluniza/1295The main goal of this study outlines theoretical framework of air traffic routes with a particular focus on the Free Route Airspace (FRA) concept. In this paper we will examine the implementation and development of FRA within Europe, specific emphasis will be given on application of this concept in the Slovak Republic, as well as relevant national initiatives. The practical component presents a comparative analysis between conventional route planning and FRA based planning on theoretical basis. Methodology used in this paper evaluates the potential of FRA in fuel optimizing process. Preliminary findings show that even small reductions in fuel consumption can lead to a measurable positive impact on environmental sustainability.otherAirwaysFRAFree Route Airspaceoptimalizationfuel efficiencyWorking Paperhttps://doi.org/10.26552/pas.Z.2025.1.40