Usability is determined as how a product can be used to achieve certain goals effectively, efficiently and satisfyingly. The purpose of the current study is to understand the ease and effectiveness flight searching form in Garasitiket with usability testing. Usability test was done by comparing an existing and an alternative form using respondents from members and non-members of Garasitiket. Data was analyzed using ANOVA. The result showed that “familiar” might not fully affect users in selecting user interface. However, it may have effects on the user's mental model. A mental model will influence users to passionate with an existed user interface rather than to try a new one. Statistical analyses indicated that there were no significant differences between User Experience Model 1 and 2. Furthermore, User Experience Model 1 was more preferable rather than User Experience Model 2.