The integration of Human-Computer Interaction (HCI) within the aviation industry signifies a pivotal shift towards enhancing user experience and operational efficiency through digital innovation. This paper explores the multifaceted impact of HCI on airline systems, underscoring the role of user experience (UX) and interface design in improving customer satisfaction and streamlining airline operations. Through a comprehensive review of existing literature and case studies from leading airlines, the study highlights the transformative potential of HCI in aviation, including the challenges and opportunities it presents. It delves into the complexity of designing intuitive user interfaces, the importance of accommodating diverse user needs, and the critical role of HCI in ensuring safety and reliability within airline operations. Additionally, the paper discusses the implications of rapid technological advancements, such as artificial intelligence (AI) and virtual reality (VR), for HCI in aviation. The findings underscore the necessity of a user-centered approach in digital innovation strategies within the aviation sector, aiming to create systems that are not only technologically advanced but also empathetic to the needs of human users. The study contributes to the broader discourse on digital transformation in aviation, offering insights and directions for future research and implementation strategies.