In recent years, work-life balance has become a key area of concern for employees and organizations all over the world. Employees’ work-life balance has a direct impact on their quality of life, work, and personal well-being. While many researchers have conducted studies investigating the factors affecting work-life balance for various group of employees—e.g., remote workers, female bank employees, corporate managers, physicians and clinicians, etc., work-life balance for flight instructors has never been studied. Flight instructors provide critical service for the aviation industry by teaching students how to fly aircrafts through classroom, simulator, and live flight instruction. They are required to have a pilot's license and instructor certification. Although flight instructors usually do not fly more than eight hours a day, their work schedules can be irregular and unpredictable. They may also be required to work during weekends and evening hours. Naturally, balancing work and family responsibilities is not easy for flight instructors. This research will investigate the factors affecting work-life balance for flight instructors. Data will be collected using an online questionnaire and respondents will be selected through convenience sampling. Data analysis will be carried out by using confirmatory factor analysis. This work-in-progress poster contributes to the aviation industry by providing valuable insight into how flight instructors perceive the quality of their work-life balance. Results of this paper should benefit readers better understand many critical aspects of flight instructors’ duties and responsibilities. Results should also help increasing flight instructors’ productivity, well-being, and engagement, and reducing their stress and absenteeism.