The aviation industry is undergoing an unprecedented transformation driven by the rapid evolution of artificial intelligence. The integration of AI in aviation is revolutionizing the sector by enhancing safety, operational efficiency, and the passenger experience. This chapter explores the integration of AI-based systems into digital identity processes within airlines. In particular, IATA’s “Project 777” and “Project 321” are examined as case studies, focusing on their technical infrastructure and contributions to safety, security, and decision support systems. Ethical and transparency dimensions of these projects are also discussed. These designs accelerate airline operations and optimize security processes by minimizing vulnerabilities, eliminating repetitive tasks, and reducing human dependency. The adoption of digital identity solutions ensures compliance with legal and security regulations while redefining the travel experience. This technological transformation is shaping the future of air travel, making it safer, smarter, and more passenger-centric.