This report investigates the influence of airline loyalty programs on passenger satisfaction, focusing on a case study of Cathay Pacific Airways. The research explores the concept of customer loyalty, consumer behavior theory, social demographics, gender behavior theory, and advertising theory to understand their impact. The study aims to analyze the relationship between customer loyalty programs and revenue and profit within Cathay Pacific, and to assess the extent to which these programs contribute to overall passenger satisfaction. Data collection methods include qualitative and quantitative approaches, with semi-structured interviews and questionnaires. The report examines the benefits of loyalty programs, their effect on traveler satisfaction, and their role in the airline industry, aiming to identify ways to improve their effectiveness. The findings provide insights into the relationship between loyalty programs and customer satisfaction, contributing to the understanding of marketing strategies within the airline industry.