This study investigated the factors of group creativity and cohesiveness perceived by airline employees, and based on the results, examined how these factors affected the organizations’ job performance, which is a job outcome variable. It is very important that airline company creates the environment to demonstrate group's creativity and cohesiveness for achievement more than expected by inducing overcome individual interest and stimulating employee's upper level desire for the profit of group or organization. So, the researcher consider it's really significant to study groups of airline company. According to the results of this study, as in previous studies, the identified factors of group creativity were ‘domain?related knowledge,’ ‘creative thinking skill’ and ‘internal job motivation,’ and those of cohesiveness were ‘social cohesiveness’ and ‘task cohesiveness.’ In addition, variables group creativity and cohesiveness were both found to be in an effect relation with job performance. Thus, group creativity and cohesiveness play the role of changing organization members’ job attitude and assuring them of being a part of the firm as a community. In this sense, the variables have a significant effect on business performance pursued by the company, and therefore, they can be critical strategic factors for business operation. Considering the characteristic of airlines highly dependent on human services, such organizations should make efforts to provide organizational environment inducing the organization members to exchange creative ideas and to commit themselves to their job.