- The IAA has published its first report on operational environmental performance
- The report covers January to June 2026
- AirNav Ireland ranks second best in Europe for en-route efficiency
- Irish airports averaged 40.9pc of flights achieving a continuous descent
- Ryanair achieved a continuous descent rate of 58.4pc at Dublin
The Irish Aviation Authority has published its first report on the operational environmental performance of aviation organisations in Ireland. Covering January to June 2026 the report uses EUROCONTROL data to look at how airlines, air navigation and airports influence fuel burn and CO2 emissions. AirNav Ireland ranks second best in the European network for en-route efficiency with a figure of 1.53pc.
Irish airports averaged 40.9pc of flights achieving a continuous descent in H1 2026 well above the European average of 34.0pc. Donegal, Kerry and Ireland West recorded monthly rates of roughly 70pc to 82pc. Shannon ran at around 58pc to 62pc and Cork at around 50pc to 55pc. Dublin ran at around 35pc to 39pc and handled 63,000 of the 77,000 descents counted.
At Dublin Ryanair achieved a continuous descent rate of 58.4pc against an average of 37.2pc for all other operators. Across its whole operation the Ryanair group recorded 44.1pc in H1 2026 compared with a European airline average of 34.5pc and the IAA describes it as the benchmark across Europe. Average departure taxi time at Dublin fell from 4.18 to 4.11 minutes.