Dublin Airport saw record numbers last year on the back of a significant increase in long-haul traffic and a strong performance from its European routes.
A total of 29.6 million passengers travelled through Dublin Airport last year, up 6% on 2016.
This marked the seventh consecutive year of growth at the airport.
Today's figures show that about 27.8 million passengers started or ended their journey at Dublin last year, while a further 1.8 million passengers used the airport as a hub.
Short-haul traffic at the airport rose by 4% to 25.3 million, while long-haul passenger numbers increased by 19% to 4.3 million.
The airport has flights to 191 destinations in 42 countries operated by 47 airlines.
It is now the 11th largest airport within the European Union and supports 117,300 jobs and contributes €8.3 billion annually to the national economy.
Dublin Airport's managing director Vincent Harrison said the continued growth at the airport is fantastic news for the Irish economy.
"Increased air connectivity boosts tourism, trade and foreign direct investment. Last year's record performance for visitor numbers across the island of Ireland was underpinned by the growth in passenger numbers at Dublin," Mr Harrison said.
Mr Harrison noted that the airport's growth in traffic last year came from a combination of 14 new services and extra capacity on 39 existing routes.
The European market delivered the largest growth in volume terms during 2017. Passenger traffic to and from continental Europe - Dublin Airport's largest market segment - increased by 7% to a record 15.2 million in 2017.
Aer Lingus, Lufthansa, KLM, Norwegian and Ryanair all increased capacity on existing European routes, and there were also new services to destinations such as Munich, Naples, Split, Stuttgart and Stockholm.
Passengers between Dublin and UK airports rose by 1% to just under 10 million last year, which was also a new record.
Mr Harrison said that while the impact of a weaker sterling after the Brexit vote contributed to a decline in British originating traffic, this was more than offset by an increase in both Irish outbound business and transfer traffic to the UK.
Meanwhile, transatlantic traffic was the fastest-growing segment of the market for the second year in a row.
Transatlantic passenger numbers increased by 20% last year to almost 3.5 million.
Last year saw new transatlantic services from Aer Lingus to Miami, Delta to Boston and Norwegian to Stewart New York and Boston Providence.
There was also increased capacity on flights to and from Chicago, Los Angeles, Toronto and Washington DC.
Passenger traffic to other international destinations, including the Middle East and Africa, increased by 14% to almost 850,000 last year.
This year Dublin Airport will see its first direct service to Asia Pacific as Cathay Pacific launches its new Dublin-Hong Kong service in June.
