The research seeks to understand the relationship between Facebook content, user engagement, and online consumers’ purchase intention of low-cost carriers (LCCs) in Taiwan. By analyzing the data of Facebook Business Manager, and distributing online surveys (N=331) among Taiwanese online consumers of LCCs, the result demonstrated a positive relationship between the content of LCCs’ Facebook Pages, the engagement with LCCs’ Facebook Pages, the reliability and image of LCCs, and the purchase intention of LCCs. Moreover, respondents who have become fans of LCCs’ Facebook Pages have more positive sentiments towards the content, more engagement, and higher purchase intention. For the ‘super fans’ who view and interact with the Pages for once or twice or more per week, they react more positively towards LCCs’ Facebook content, more engagement, and higher purchase intention. Airfare promotion is the most popular type of content that fans engage with. The research contributes to understanding the LCC’s content marketing trends in Taiwanese market and the key factors that influence purchase intention.