Train is a mass transportation widely used by Indonesian people. The higher the rail users, the railway service quality level should be improved, with improved service quality can affect the level of consumer satisfaction.. This research is aimed to analyze the influence of independent variables (Efficiency, Fullfilment, System avaibility, and Privacy) to variable dependent that is consumer satisfaction. The subject of this research is the online reservation ticket user of PT KAI. Samples taken as many as 100 respondents with purposive sampling technique, with criteria have aged 17 years and never use online reservation ticket. Based on t test, it is found that only efficient variables, system availability, and privacy have positive and significant impact on customer satisfaction. While the fulfillment not have a positive and significant impact on customer satisfaction. Results of multiple linear analysis show that the most efficient variables affect consumer satisfaction