PurposeOnline reviews have received research attention in recent years, as they work as precursors of consumer behaviors. Previous studies have suggested that the influence of online reviews may vary across generations. However, the previous literature has not analyzed yet whether millennials and Generation X react differently to online reviews. This study aims to shed light on this by analyzing whether the attitudes and behavioral intentions generated by online reviews are different for these two generational cohorts.Design/methodology/approachAn experimental procedure was designed to manipulate online review valence; data were collected from 351 respondents in two samples, Generation X and millennial participants.FindingsResults suggested that positive online reviews generate more positive customer attitudes and booking intentions than negative online reviews. In addition, Generation X vs millennials moderates the link among online review valence, attitudes and booking intentions. The resultant behaviors from online reviews are more intense among Generation X than for millennials.Practical implicationsManagers should be aware of online review valence and their customers' generational cohort, that is, whether they are millennials or Generation X, as they react differently to online reviews.Originality/valueThis research examines the moderating role of millennials and Generation X in the relationship between online reviews, consumer attitudes and behavioral intentions. The aim is to explain how millennial and Generation X consumers react to eWOM, that is, whether generational cohort mitigates or enhances the effects of positive vs negative online reviews on consumer reactions.