The daa says it empathises with passengers who's luggage has been lost or delayed, but the issue is the responsibility of airlines.
The Dublin Airport Authority says the root of the issue lies in the significant staff hiring challenges facing all companies in the aviation sector.
Hundreds of bags have been left at Dublin Airport, and passengers report being unable to get any information from their airlines.
Aer Lingus says recruitment and resourcing issues among third party suppliers are resulting in some of our customers experiencing a level of service below what they expect, including delayed baggage.
It says its team on the ground is working closely with handling agents to retrieve delayed or misdirected baggage as quickly as possible.
In a statement, the daa says: "Passengers' airlines or their third-party ground handling agents are responsible for the resourcing of check-in, bag drop and baggage delivery. While daa, who operates Dublin Airport, provides the key infrastructure and has invested significantly in new Hold Baggage Systems at Dublin and Cork airports, our staff are not employed in these areas.
"We are aware of the issues that some arriving passengers are facing regarding baggage return, which is looked after by their airline and their chosen handling partner. daa, as the airport management company does not handle any baggage for any airline at Dublin Airport.
"We empathise with those affected and regret that these issues are impacting their passenger experience. We are liaising very closely with both the airlines and their ground handling companies in relation to these issues, the root of which lies in the significant staff hiring challenges that are facing all companies operating in the aviation sector currently.
"Any passenger experiencing issues regarding their baggage should make contact with their airline."
Aer Lingus says: "Recruitment and resourcing issues among third party suppliers are resulting in some of our customers experiencing a level of service below what they expect, including delayed baggage.
"The situation was compounded by the recent failure of the baggage system in London Heathrow.
"Aer Lingus’ team on the ground is continuing to work closely with all the relevant handling agents to retrieve delayed or misdirected baggage as quickly and efficiently as possible."
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