Abstract: This study explores the connection between workplace flexibility and subjective well-being, focusing on the mediational role of work-life balance among Air Force women. Although these women perform the same duties and responsibilities as their male counterparts, married Air Force women frequently face additional domestic obligations that complicate their professional roles. The rigid and hierarchical nature of military organizations further exacerbates this challenge, as personnel are required to be readily available for tasks assigned by superiors. The study involved 483 female military personnel across the Indonesian archipelago. Confirmatory factor analysis and reliability analyses demonstrated that the existing measures are valid and reliable for assessing this population. Using multi-mediation analysis, the results highlighted the significance of work-life balance factors in most relationships between workplace flexibility and subjective well-being. Two dimensions of work-life balance produced differing effects: the interference dimension negatively mediated the relationship, while the enhancement dimension had a positive mediational effect. These findings deepen our understanding on the importance of having control over one's work, as workplace flexibility can have varying impacts on subjective well-being, depending on an individual's ability to manage both work and personal responsibilities.