Emirates Airline will serve Dublin with a second daily non-stop flight from September.
The announcement comes just two and a half years after the carrier first introduced flights into the Irish market.
The introduction of the second service, to the Irish capital, will add more than 5,000 seats and operated using a Boeing 777-300ER.
Emirates also said it will facilitate more onward connections from Dubai to major destinations in Australia and New Zealand, with shorter journey times into Auckland, Melbourne and Brisbane, while it will introduce new connections to the Far East, India, East and Southern Africa.
Tim Clark, president, Emirates Airline, said: “Air travel is indispensable for tourism and trade, the major engines of Ireland’s resurgent economy.
“Emirates’ expanded schedule will offer better connectivity for our customers when travelling between Dublin and Dubai and onwards to the rest of our network, increasing access to emerging markets and encouraging investment and innovation.
"There is a clear traffic flow taking place from Dublin to a number of destinations in our network, therefore boosting connections makes business sense.”
Emirates claims more than 440,000 passengers have travelled on the Dubai to Dublin service since it started. Tourism Ireland estimates that by 2020 average growth rates of passenger traffic, from Asia and Middle East to Ireland, will be over 6%.