Up to 30,000 Aer Lingus passengers are no closer to finding out whether they face travel chaos next week.
Talks at a state mediation body to avert highly disruptive industrial action by pilots from next Tuesday will only begin this morning.
Management was due to begin talks at the Labour Relations Commission yesterday but the discussions were postponed.
The Irish Airline Pilots Association will also enter talks at the mediation body in Dublin this morning.
If the industrial action goes ahead, the airline has warned it may have to ground all flights.
This would affect between 28,000 and 30,000 passengers a day. Pilots claim that gross understaffing means they are being asked to work up to six days in a row with just one day's break between shifts.
They said they normally got two days' break.