Dublin Airport has admitted that mistakes were made after it was forced to warn passengers that some could miss flights due to lengthy queues.
An urgent meeting will take place on Monday between Dublin Airport officials and junior minister Hildegarde Naughton to discuss the issue.
Concern is growing ahead of the bank holiday weekend in several days’ time, as both the Taoiseach and the Minister for Transport asked for answers about the disorder at the airport.
Dublin Airport had earlier warned of “significant queues” for passengers at the country’s main airport.
Some travelling were told they could miss flights due to the extent of the queues, with 50,000 passengers expected to pass through the airport on Sunday.
Officials pledged to try to compensate all passengers who have missed flights or had plans disrupted, if additional costs are incurred.
Taoiseach Micheal Martin, speaking from Lebanon, said the situation was “not satisfactory”.
“The minister will be engaging with them and Government will be discussing this and reviewing this in terms of the huge numbers and the delays and so on.
“It’s not satisfactory.”
In a statement on Sunday, the Department of Transport said Transport Minister Eamon Ryan and Ms Naughton have “expressed deep unhappiness” over the scenes at the airport on Sunday.
Ms Naughton, who has held twice weekly meetings in recent weeks with the Daa chief executive, will meet Dalton Philips first thing on Monday to discuss the issues.
The statement, issued on behalf of the ministers, said: “The passenger experience at Dublin Airport is falling far short of the service that our citizens and visitors should expect at our largest state airport.
“They said that it was not satisfactory that some people, who are following daa guidelines, are turning up to the airport for check-in on time, but are still missing their flights.
We have to put our hands up and say we got that wrong and we wish we had more staff available this morning to rectify that situation quicker than we didKevin Cullinane, Daa
“The situation is causing undue stress and potential cost to people, which is simply not good enough.”
Kevin Cullinane, the group head of communications for Daa, the body that runs the airport, admitted they had got things “wrong” on Sunday.
“Significantly, we did not have sufficient staff manning sufficient posts throughout the airport to cope with demand early on and hence queues built up,” he told RTE radio.
“We clearly did not have enough lanes open in security from early on this morning, for the numbers who presented themselves at that hour of the morning. And that caused obviously a compounding effect throughout the morning.”
He pledged that Dublin Airport will try to compensate all passengers who have missed flights or had plans disrupted, if additional costs are incurred.
Mr Cullinane also said airlines were providing passengers with the option of booking different flights later on Sunday or Monday, without an additional cost.
“We will look at each case on a case-by-case basis but we’ll be doing our level best to make sure that nobody will be out of pocket for missing a flight today as a results of these queues at Dublin Airport.”
Passengers have faced lengthy waits and scenes of disorder at Dublin Airport in recent months.
The airport has previously said it is trying to rebound from the impact of the pandemic and has blamed shortages in fully trained staff working at the country’s busiest airport.
Mr Cullinane said there will be an additional 370 security staff in the airport from June.
“Clearly we didn’t have and we still don’t have sufficient numbers to cater for this,” he said.
“We have to put our hands up and say we got that wrong and we wish we had more staff available this morning to rectify that situation quicker than we did.”
He said that the situation was now “under control” at Terminal 1, but lengthy queues could be expected at Terminal 2 for the next couple of hours.
In a statement earlier, a spokesperson for the airport said: “Dublin Airport is experiencing significant queues for airline check-in, bag drop and security screening this morning as 50,000 passengers are expected to depart over the course of the day.
“Queuing outside both terminals has been deployed since early morning as part of Dublin Airport’s contingency plans for the increased numbers of passengers travelling.
“Due to significant queues inside the terminals passengers queueing outside the terminal have been advised they may not make their flight and may need to contact their airline to rebook.
“Dublin Airport sincerely apologises for the obvious frustration and inconvenience this is causing.”