Dublin Airport has broken its previous passenger numbers in a single year, even with December traffic still to come.
More than 23.5 million passengers have passed through Dublin Airport so far this year.
The figure beats the record for passenger traffic set in 2008, of 23.4 million.
Dublin Airport said this year's growth is due to a combination of 23 new routes and additional capacity on many existing services.
The new routes include Aer Lingus services to Washington, Liverpool and Nantes, Ryanair services to Amsterdam, Copenhagen and Lublin, Ethiopian Airlines services to Los Angeles and Addis Ababa, and new flights to Reykjavik, Barcelona and Paris Orly with WOW Air, Vueling and Transavia respectively.
Dublin Airport managing director Vincent Harrison said: "We have already welcomed more than 3.1 million extra passengers this year and we still have most of December to come."