Aer Lingus are set to hold discussions with unions about potentially cutting up to 900 jobs at the airline.
Union representatives were reportedly told during a meeting with management today that the company is seeking to reduce its workforce by up 20%.
Aer Lingus employ approximately 4,500 people across Ireland, with most based in Dublin, Cork and Shannon.
The timing of the cuts will be determined following further discussions with unions, RTE reports.
It is not yet known which routes or jobs will be affected.
An Aer Lingus spokesperson told The Irish Daily Mirror: “Aer Lingus is continuing to communicate directly with our employees and engage with their representative bodies.”
Job losses at the flag carrier were expected with industry sources saying it was "only a matter of time" earlier this week.
Aer Lingus' owner International Airlines Group (IAG), announced job cuts at British Airways on Tuesday as it revealed that revenues plunged 13% in the first quarter of 2020.
It's understood Aer Lingus have been relying on the Government's Covid-19 wage subsidy scheme and on operating flights for medical and other essential supplies.
Earlier today, Ryanair announced up to 3,000 jobs will be axed as part of a major restructuring.
Most of the cuts will be pilot and cabin crew jobs, and the program will start in July 2020.