The operators of Dublin Airport have said that while alcohol consumption at airports needs to be controlled, they do not feel Dublin Airport needs to implement a two drink limit.
Yesterday, Ryanair reiterated its call for a limit of two alcoholic drinks per passenger to be introduced at airport bars.
The airline said such a policy would result in "a safer travel experience for passengers and crews".
It comes after the carrier announced last week that it has started taking legal action to recover losses against disruptive passengers, as part of a "major misconduct clampdown".
However, Daa chief executive Kenny Jacobs said that of the people arrested for being drunk and disorderly at Dublin and Cork airports last year, the majority of them were arrested at check in.
The average amount of alcohol consumed at Dublin Airport was half a pint per passenger, he added.
Mr Jacobs said he believed it was a bigger issue at other European airports where the cost of alcohol was cheaper.
He was speaking as the daa called for an increase in the passenger cap at Dublin Airport and improvements in the planning process to be included in the next programme for government.
Yesterday a Ryanair spokesperson said European governments "repeatedly fail to take action when disruptive passengers threaten aircraft safety and force them to divert".
"It is time that European Union authorities take action to limit the sale of alcohol at airports. Airlines like Ryanair already restrict and limit the sale of alcohol on board our aircraft, particularly in disruptive passenger cases," the spokesperson said.
"However, during flight delays, passengers are consuming excess alcohol at airports without any limit on purchase or consumption," he said.
"We fail to understand why passengers at airports are not limited to two alcoholic drinks (using their boarding pass in exactly the same way they limit duty free sales), as this would result in safer and better passenger behaviour on board aircraft, and a safer travel experience for passengers and crews all over Europe," he added.
Ryanair's call for a two-drink limit was first made by its group chief executive Michael O'Leary in August last year, as he reported an increase in disorder on flights.