The study was conducted to determine the factors affecting the flight attendant’s performance appraisal on Vietnam Airlines flights. The Cronbach’s alpha, Exploratory Factor Analysis (EFA) and multivariate linear regression analysis is used to analyze survey data of 253 the flight attendants. The research results show that there are 9 factors affecting the flight attendants’ performance appraisal on Vietnam Airlines flights: (1) Implementation process, (2) Interpersonal relationships, (3) Rater accuracy, (4) Employee attitudes, (5) Employee training, (6) Linking performance appraisal to pay/reward, (7) Performance feedback, (8) Organizational Culture, (9) Job characteristics. In which, Implementation Process factor has the strongest impact on the performance appraisal of flight attendants. Based on this study’s findings, some implications are presented in order to increase the flight attendant’s performance appraisal for Vietnam Airlines Cabin crew.