1、FLIGHTEMISSIONS REVIEWOFFICIAL AIRLINE REPORT JULY 2025CONTENTSIntroduction&Forewordby Jeremy BowenGlobal Airline Rankings Global CO Emissions Major Airlines Worlds Largest Airlines by ASKInter-Regional Highlights:CO Efficiency by Geography North Atlantic TranspacificIntra-Regional Highlights:CO Eff

2、iciency by Geography North America Region Western Europe Region Southeast Asia Region Latin America Region 2CIRIUM FLIGHT EMISSIONS REVIEW481830CONTENTRoute Analysis:Top 10 Performers by Route Efficiency Long-Haul Routes Medium-Haul Routes Short-Haul RoutesBuilding Confidence in Emissions Data:The I

3、mportance of ISAE 3000 Assurance Appendix Airline Codes Airport Codes Definition of Terms Cirium History Cirium Global OfficesEmeraldSky:Advancing Flight Emissions Measurement in Aviation by Andrew Doyle3OFFICIAL AIRLINE REPORT|JULY 202538505254CIRIUM.COMTHE CIRIUMFLIGHT EMISSIONS REVIEWWelcome to t

4、he Cirium Flight Emissions Review the trusted benchmark for flight emissions calculations for the global aviation sector.As the industry faces continued pressure to decarbonize,accurate and independent emissions data is no longer a nice-to-have its essential.At Cirium,we believe progress starts with

5、 visibility.Thats why weve developed this Review:to give stakeholders across aviation a clear,data-backed view of emissions performance,built on the most accurate information available.The results in this Review are powered by EmeraldSky,Ciriums emissions intelligence solution.EmeraldSky combines th

6、e most complete aviation data available with advanced data modeling and emissions science.It enables airlines,airports,lessors,and aviation sustainability stakeholders to measure and understand flight carbon emissions with confidence and clarity.In 2025,EmeraldSkys methodology achieved ISAE 3000 Rea