Abstract
Airports open their doors to visitors and investors from around the world, crucially boosting the economy, trade, investment, and tourism of countries throughout the world. This paper aims to categorize service quality factors used in the service evaluation of Thailand’s airports. The factors of airport service quality were accumulated through literature review to survey the service satisfaction of 300 passengers. The Exploratory Factor Analysis (EFA) was then used to analyze the data from the survey to categorize the factors into sub-factors. Also, the Analytic Hierarchy Process (AHP) was used to evaluate the weight factors via pairwise comparison. The findings of this research provides the key factors of airport service quality for aviation authorities and airport administrators in Thailand.