Abstract
This study explores the legal framework governing cross-border operations of Unmanned Aircraft Systems (UAS), highlighting the pressing need for a unified regulatory environment to match the rapid advancements in UAS technology. As UAS operations increasingly align with international air services, this study draws parallels between UAS governance and the regulation of airlines, which are currently authorized to provide international air services under air transport agreements. The analysis focuses on the applicability of both international law and EU regulations to UAS operations, particularly in the context of scheduled, non-scheduled, and cabotage services. It examines certification and licensing requirements under EU regulations, identifying their potential to serve as models for future international standards. Overall, this study contributes to the understanding of regulatory challenges and opportunities, emphasizing the importance of harmonized global standards for the effective integration of UAS into international aviation.