The airline industry relies heavily on digital transformation to enhance customer experience and operational efficiency. The adoption of microservices architecture has emerged as a crucial factor in modernizing airline systems, enabling scalability, flexibility, and real-time responsiveness. This paper examines how microservices impact customer experience in airline operations by improving booking processes, flight management, customer support, and overall system reliability. Through case studies and industry analysis, we explore the benefits, challenges, and best practices associated with implementing microservices in airline systems. The findings suggest that while microservices architecture significantly enhances customer experience through reduced downtime, personalized services, and improved system efficiency, challenges such as integration complexities and security vulnerabilities must be carefully managed.