The purpose of this book is to identify factors affecting intention to use e ticketing system by Airline passengers. This study applies an adoption model of integrating the UTAUT model with motivational and de-motivational factors in order to assess Airline e-ticketing system.Data analyzed indicates that performance expectancy, facilitating conditions, social influence, price saving, time saving and Perceived risk significantly affect on airline passengers intention to use e-ticketing system even though perceived risk has a negative significant effect where perceived enjoyment and effort expectancy risk has a negative significantly affect on airline passenger s intention to use e-ticketing system.Travel agencies and tour operators can improve their e-ticketing systems by considering findings.