Dublin Airport will see the start of 23 new routes as well as the arrival of four new airlines in the coming weeks.
It has predicted the busiest summer in the airport's 79-year history.
More than 1.3 million extra seats have been added across Dublin Arport's route network, a 6% increase in capacity when compared to last summer.
Four new airlines – airBaltic, Great Dane Airlines, SunExpress and TAP Air Portugal – are also starting routes from Dublin this summer.
Six long-haul routes and 17 short-haul destinations are being added to Dublin Airport's flight schedule this summer.
Of the six new long-haul routes, Hainan Airlines and Norwegian have already launched new services to Shenzhen and Hamilton Toronto.
WestJet is due to start a new service to Halifax, Nova Scotia in April and a new route to Calgary in June.
American Airlines will launch a new service to Dallas-Fort Worth in June and Aer Lingus will operate flights to Minneapolis-St Paul from July.
Meanwhile, Ryanair will operate new short-haul services to Bordeaux, Bodrum, Bournemouth, Cagliari, Dubrovnik, Gothenburg, Kyiv, London-Southend, Lourdes, Milan/Malpensa, Thessaloniki, and Split.
AirBaltic recently launched a new service to the Latvian capital Riga, while TAP Air Portugal will operate a new service to Lisbon.
SunExpress will fly to Izmir, Great Dane Airlines will operate a new service to Aalborg in Denmark and Loganair will fly to Carlisle close to the UK's Lake District.
Dublin Airport has flights to almost 200 destinations in 43 countries, operated by 53 airlines and is the 11th busiest airport in the European Union.