The primary purpose of this paper is to identify the service quality dimensions and evaluation methods for international airports in order to support effective service quality management at the newly opened Incheon International Airport. After first identifying the service quality dimensions and evaluation methods for international airport services, the model fit and validity of the evaluation method were tested on customers of Incheon International Airport. According to the results of this study, the model fit and validity tests produced satisfactory results. Additionally, through two multiple regression analyses, the explanatory power regarding the causal relationships between airport service quality dimensions and customer satisfaction was shown to be high, thereby verifying that the service quality dimensions identified in this study are appropriate as scales for evaluating international airport service quality.