IATA chief tells Oireachtas that Dublin Airport passenger cap is now “a real and immediate risk” to Ireland’s economy

Speaking to the Joint Oireachtas Committee on Transport in the early hours of 31 March, Willie Walsh – Director-General of the International Air Transport Association (IATA) and former boss of Aer Lingus and British Airways – delivered his starkest warning yet about the 32 million-passenger planning cap that still constrains Dublin Airport. Aviation, he reminded TDs and Senators, is not simply another sector; it underpins trade flows worth more than €40 billion, supports 128,000 Irish jobs and is the main artery for the multinational investment that has powered the State’s growth. Walsh argued that airlines have already begun to divert future aircraft capacity to airports on the Continent and in the UK where slot availability is guaranteed. The slot-allocation cycle for summer 2027 opens this September; if legal certainty is not restored by 1 October, IATA members will assume the cap remains and lock those aircraft elsewhere, a decision that “becomes almost impossible to unwind once published,” he said. The Government’s response is the Dublin Airport (Passenger Capacity) Bill 2026, which would allow the Minister for Transport to override the cap when it demonstrably harms connectivity or the wider economy. Walsh welcomed the draft legislation but warned that “swift enactment and commencement are essential.” He criticised the current planning regime for taking “years rather than months” to work through appeals, consultations and environmental assessments, an approach he claims is out of sync with global airline scheduling cycles. From a corporate-mobility perspective the stakes are high. More than 1,800 US and Asian multinationals use Dublin as their European hub; any reduction in long-haul frequencies would hit executive travel, talent rotation and high-value cargo. Travel managers have already reported rising fares on key transatlantic routes as capacity tightens. Walsh’s intervention adds heavyweight industry pressure on politicians to pass the Bill before the Dáil’s summer recess. For multinationals and Irish exporters alike, the message is clear: without regulatory certainty on airport growth, Ireland’s reputation for seamless global connectivity could quickly unravel – just as the country prepares to compete for a new wave of green-tech and AI investment in the late-2020s.