Lynne Embleton has been appointed Chief Executive of Aer Lingus and will start her new role in April.
The owner of the airline, IAG made the announcement this afternoon.
Ms Embleton replaces Donal Moriarty who has been interim Chief Executive since October 2020 and who will resume his role as the airline's Chief Corporate Affairs Officer.
Ms Embleton has been Chief Executive and Chairman of IAG Cargo since 2017.
Prior to that, she held numerous senior roles at British Airways including Managing Director at Gatwick, Director of Strategy and Chairman of BA CityFlyer.
Luis Gallego, IAG Chief Executive, said he is confident that Ms Embleton has the skills to lead the airline through the pandemic.
"At IAG Cargo Ms Embleton has led the company as it adapted rapidly to the Covid-19 pandemic and has made significant progress in digitally transforming the business," he said.