Many travelers are interested in the usage of smartphones for their trips. This study aims in investigating the determinants of their intentions to adopt information on smartphones for travel decision making. This paper suggests a combined model to examine travelers’ intentions to use travel information on their smartphones from two standpoints: hardware using the united theory of acceptance and use of technology (UTAUT) and software using the e-satisfaction (E-SAT) model. The results show that four main determinants influence travelers' intentions to use travel information on smartphones for their trips: usefulness, ease of use, social influence, and satisfaction with travel websites. Copyright © 2013 John Wiley & Sons, Ltd.