Dublin Airport Authority's CEO Dalton Phillips will step down from his role in September.
Mr Phillips has been in charge of Dublin Airport for almost five years but is moving to the role of CEO of the Greencore Group, an Irish food company.
The daa chief will stay at the airport during the summer months before departing in September.
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He described his time as CEO as a "privilege".
He said: "I am incredibly grateful to the broader leadership team and staff of daa who have put their shoulder to the wheel throughout COVID, and especially over recent months, in bridging the gap between spiralling demand for air travel and the restoration of our full operational capacity, expected next month.
“Having served as Chief Executive of daa I am more convinced than ever of the fundamental importance of our airports at Dublin and Cork as critical elements of national infrastructure and economic enablers.
"Despite the unprecedented challenges COVID imposed on our lives and livelihoods, our airports continued to provide an essential and safe service throughout and are strongly positioned to remain a vital component of Ireland’s next phase of economic growth and prosperity well into the future.”
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