The website has become a crucial part of digitalization. In recent years, the airline sector has shifted to online platforms in order to expand its client base and provide consumers with timely information and services. Usability and accessibility are essential aspects of web quality that influence consumer acquisition and retention. As a result, the purpose of this study is to assess the quality of Turkish airline websites. The website is assessed based on its accessibility, usability, and readability utilizing online automated techniques. Finally, internet tools are used to assess the mobile-friendliness of websites. According to the findings, none of the Turkish airline websites meet the WCAG 2.0 accessibility criteria and have severe usability problems.