As people's standard of living has increased, tourism's is taking a greater share in peoples' consumption. The tourism market continues to expand; however, customers' complaints became more frequent, travel agencies and tourists had more disputes, and there have been increased service failures of travel agencies. Therefore, how to reduce customers switching intention became one of the critical issues. This study investigates the effect of service failures on customers switching intention and personality traits. The results showed that travel agencies notify customers reservation cannot be made due to insufficient number of participants before departure have no effect on the customer switching intention. Service failure on the journey about important attractions unable to visit or must cancel the attractions journey or tour guide provides poor service effect on the customer switching intention.