- A4A complaint filed to US DOT on Dublin cap.
- Calls for emergency suspension by February 1, 2026.
- Claims breach of US-EU agreement and EU rules.
- Potential restrictions on Irish airlines to US.
- Cap at 32m passengers from 2007 condition.
Airlines for America, the trade body representing carriers including American Airlines, Delta Air Lines and United Airlines, has filed a formal complaint with the United States Department of Transportation callings on the department to convene a meeting with representatives from Ireland and the European Commission.
It further urges measures against Irish airlines if the government fails to act on the passenger cap at Dublin Airport. The group claims the 32m annual limit breaches EU regulations and the US-EU Air Transport Agreement. It urges emergency legislation by February 1, 2026, to suspend the cap.
Failure to act could lead to restrictions on Irish airlines’ US access, impacting Aer Lingus most. The cap, from a 2007 planning condition, faces enforcement suspension pending European Court of Justice review. An advocate general opinion is due next month.
Ryanair welcomed the action, criticising government inaction 13 months after promising to scrap the cap. The complaint highlights potential loss of US carrier slots. Fingal County Council issued enforcement last year, giving two years for compliance.
The cap limits annual passenger numbers at Dublin Airport to 32m, a condition set in 2007 planning permission for Terminal 2. Airlines for America argues that enforcement of this limit will lead to withdrawal of historic takeoff and landing slots held by United States carriers.
Such action would violate the United States-European Union Air Transport Agreement, the group states. It contends that the restriction discriminates against United States operators, as European carriers could shift capacity from domestic routes to maintain transatlantic services.
The complaint warns that an adverse ruling from the Court of Justice of the European Union on related slot regulations could prompt immediate cuts at Dublin Airport. This would require an 11pc reduction in operations from 2025 levels, starting as early as winter 2026.
Airlines for America demands emergency legislation from the Irish government by 1 February 2026 to remove or suspend the cap. Failure to do so should trigger retaliation, including curbs on Irish carriers’ access to United States airports, the filing states. Aer Lingus operates extensive transatlantic routes from Dublin and would face the greatest impact.
Ongoing legal challenges in Irish courts and referrals to European institutions have delayed enforcement of the cap to date. Passenger numbers at Dublin Airport exceeded 36m in 2025, breaching the limit. The Irish government committed in its programme to lift the restriction but has not introduced legislation.
Ryanair’s CEO Michael O’Leary shared “While the US Airlines have now initiated legal proceedings against Ireland in the US, our ‘do-nothing’ Taoiseach continues his worldwide tour, with this week’s 4 day stop-off in China, where he will waste the entire week talking about international issues, on which he has no impact, while his Govt – despite a 20-seat majority – delivers nothing here at home.”
Ryanair’s CEO Michael O’Leary shared “Micheál Martin, who spends more time on worldwide tours than Elton John, prefers hobnobbing with world leaders rather than delivering his Govt Program here at home.”
“What exactly does Micheál “do-nothing” Martin mean when his Govt Programme promised to scrap the Dublin Airport cap ‘as soon as possible’? Is it one week, one month, one year, or whenever his worldwide tour to Brazil, South Africa, Angola, and now China finally ends??”
A4A shared in a written statement “A4A is compelled to file this complaint because Ireland continues to violate EU regulations and the United States-European Union Air Transport Agreement (US-EU ATA).”
“Specifically, the Irish Government seeks to impose a local infrastructure planning condition restricting the number of passengers at Dublin Airport to 32m passengers per annum, which will result in the withdrawing of US carrier historical slots at Dublin Airport.”
