Out of space? How human density influences satisfaction in premium services

Purpose This study examines how human density in premium servicescapes influences customer satisfaction through two opposing routes, using airport lounges as the empirical setting. Design/methodology Drawing on spatial and social crowding research, we test a spatial route in which higher human density increases perceived insufficient space and thereby lowers satisfaction, alongside a social route in which density remains positively associated with satisfaction after accounting for spatial constraints. We also examine whether time of day conditions both routes, whether staff courtesy buffers the adverse effect of perceived insufficient space, and whether lounge satisfaction is associated with airline recommendation. The analysis combines operational and survey data from 10,551 passengers who visited an airline lounge between 2021 and 2023. Findings Human density is associated with greater perceived insufficient space, which in turn lowers satisfaction. At the same time, density retains a smaller positive association with satisfaction, consistent with the possibility that the presence of others may generate social value in premium settings. As the day progresses, the negative spatial route strengthens, whereas the positive social association weakens. Staff courtesy reduces the adverse effect of perceived insufficient space on satisfaction but does not strengthen the social route. Lounge satisfaction is positively associated with airline recommendation. Originality/value The study shows that human density can simultaneously undermine and enhance premium service evaluations. It identifies time of day as a contextual boundary condition and staff courtesy as a practical means of limiting density-related dissatisfaction.