Wizz Air is the world's most emissions-efficient airline in new rankings released today by Cirium, the aviation analytics firm. The Cirium Flight Emissions Review ranks the top 20 airlines globally, through a consistent benchmark for flight emissions. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20250702342529/en/The top 20 Major airlines globally, ranked by lowest CO2/ASK Wizz Air, the Hungary-based ultra-low-cost airline emits an ...