This study explored behavioral models based on low-cost carrier customers’ use of a ticketing app. Technology readiness, service convenience, and corporate credibility were evaluated in the model. A total of 815 valid responses were collected from customers of Tigerair, Taiwan, who had flown from one of the two major international airports in Taiwan. With technology readiness regarded as the grouping variable, the results indicated that corporate credibility significantly affected customers’ intentions to use the app, whereas the effects of service convenience on the technology exploration, technology contradiction, and the technology insecurity groups varied. Finally, this paper presents a discussion of management implications and suggestions for future studies.