Although research on hotel booking intention has been carried out in the last decade, the research that reveals the role of hotel reservation information through online consumer reviews in the millennial generation is still very rare. This study aims to determine the factors of online consumer reviews that affect hotel booking intentions for the millennial generation in Bali, Indonesia. This study uses a quantitative approach by distributing questionnaires to 385 respondents through a non-probability sampling technique, namely purposive sampling. The data analysis technique of this research is a multiple linear regression analysis processed using the SPSS 25.0 program. The results reveal that usefulness, timeline, and comprehensiveness have a significant effect on hotel booking intentions. Meanwhile, the volume of online reviews, the positive valence of online reviews, and the negative valence of online reviews are not significant for hotel booking intentions. The research findings reveal the characteristics of the millennial generation which are in line with the theory of reason action that they have their views in making decisions. The research implications are discussed in the paper.