This assignment presents a comprehensive survey questionnaire designed to assess passenger satisfaction levels with various aspects of air travel. The survey focuses on evaluating the experiences of passengers across different airline categories: Full-Service Carriers (FSC), Low-Cost Carriers (LCC), or both. Key areas covered include in-flight services, customer service, comfort, cleanliness, and overall satisfaction. Respondents are asked to rate their experiences on a scale and provide detailed feedback on any inconveniences or challenges faced. The questionnaire also seeks recommendations for future improvements and insights into potential research avenues within the airline industry.