World’s largest airline groups by available seat kilometres (ASKs) in Mar-2023 have been highlighted by CAPA using data based on OAG flight schedules and its CAPA Fleet database. The US airlines Delta Air Lines, United Airlines Holdings, and American Airlines Group continue to dominate the metric, followed by Emirates Group and International Airlines Group. Air France-KLM, Southwest Airlines, and China Southern Air Holding Company also rise above Deutsche Lufthansa, while Turkish Airlines Group rises in the ranking. Ryanair Holdings, easyJet, and Air India Limited report a rise in ASKs, while Wizz Air Group records a +75.2% rise. Cathay Pacific Group, Aeroflot Group, and Etihad Aviation Group fall in the ranking due to various factors.