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The Irish Aviation Authority (IAA) has published its final decision on Dublin Airport’s Winter 2025 capacity. The final decision remains consistent with the proposals of the draft decision. In making its decision, the IAA has taken account of the responses received to the draft decision consultation, which closed on 24 April. The Winter 2025 scheduling season runs from 26 October 2025 to 28 March 2026.

In light of the recent Order of the High Court that, pending the determination of associated legal proceedings, the IAA is not to take account of certain planning conditions which limit the ‘combined capacity’ of Terminal 1 and Terminal 2 to 32 million annual passengers, no seat cap coordination parameter is included for Winter 2025. 

The coordination parameters will support increased competition by allowing for up to 41 additional daily slots to be allocated by the independent slot coordinator, but without degrading the current service quality. That assessment is driven by a number of factors, including enhanced infrastructure such as the new aircraft parking stands at Apron 5H- as well as the runway capacity of the parallel runway system and associated taxiways. 

The final decision is available on the IAA slot allocation webpage.