SIPTU has said the prospect of a strike at Air Lingus is as real now as it was last week.
The union, which is against the airline being sold off, issued its statement after Aer Lingus released details of incentives aimed at getting staff to agree to a flotation.
The incentives include a 3% pay increase over and above the national wage agreement, a once off payment of up to €4,000 and up to 7.5% of future profits to invest in shares.
On RTÉ Radio’s Morning Ireland, Michael Halpenny, SIPTU's National Industrial Secretary, said his union was fundamentally opposed to the flotation because it raised big questions over the job security of members.
He added that SIPTU has also told the company that if it goes ahead with the flotation without dealing with the issues that the union had identified, job security, pensions and pay, then workers would move to protect themselves.