A study has revealed the most loved and hated airlines in the world, with the top 3 most hated airlines reportedly being US carriers. The rankings are based on customer dissatisfaction, but the specific airlines and their rankings are not universally agreed upon. The study's findings have been reported by various outlets, which have also noted the existence of a list of the top 10 most loved and hated airlines, although the details of the list are not consistent across all reports.