SIPTU says it's unacceptable for Aer Lingus to withdraw proposals aimed at avoiding pay cuts and job losses.
The airline's set to implement the reduction in pay and layoffs from June 21st, according to the trade union.
Cuts of up to 70% in pay are on the cards, as the company deals with the impact of the Covid 19 pandemic.
SIPTU is also angry pilot unions have been given a number of weeks to consult their members on the workplace changes.
