Purpose This research adopts the conservation of resources (COR) theory to examine the effects of trust in organizations and trait mindfulness on optimism and perceived stress of flight attendants in Thailand during the COVID-19 pandemic. Design/methodology/approach Online survey data were collected from 234 flight attendants who work for five low-cost airlines based in Thailand. The data were analyzed by using partial least squares structural equation modeling (PLS-SEM).
Findings The results show that trust in an organization and trait mindfulness are negatively associated with the perceived stress of flight attendants. Their associations are also partially mediated by optimism. Moreover, the moderating effect analysis reveals that trait mindfulness intensifies the positive association between trust in organizations and optimism. Originality/value The evidence from this research broadens COR theory by showing that different aspects of resources can be combined to strengthen the ability of individuals to gain more resources to lessen stress.