This study aims to analyze the influence of the work environment on professionalism, analyzing the effect of individual characteristics on professionalism, analyzing the effect of professionalism on pilot performance, analyzing the influence of the work environment on pilot performance with professionalism as an intervening variable and analyzing the influence of individual characteristics on pilot performance in Lion Air with professionalism as an intervening variable. The number of samples in this study were 165 respondents. The data analysis technique used path analysis. The results of the analysis show that the work environment has an effect on professionalism. Individual characteristics affect professionalism. The work environment affects pilot performance. Individual characteristics have an effect on pilot performance. The work environment affects the pilot's performance with professionalism as an intervening variable. Individual characteristics affect pilot performance with professionalism as an intervening variable.