Further Aer Lingus flights were canceled over the weekend due to staff absences due to Covid-19, bringing the total number of affected flights to 16.
As many as 4,000 people are expected to be affected by cancellations this weekend due to the continued spike in Covid cases among airline staff.
Today, three other return flights from Dublin Airport between Lisbon, Amsterdam and Milan were also interrupted.
Speaking on Newstalk this morning, Eoghan Corry of Air and Travel Magazine, said there could be more cancellations today.
“The focus has completely changed from security queues, which worked very well yesterday, no longer than 35 minutes, to flight cancellations.
“There will be a few. The question is how disruptive will it be for passengers overall?”
The daa says the army is “ready to deploy if necessary”, although internal union sources warn that this is not an option for them.
Meanwhile, the Ireland Thinks poll shows more than a third of people are reconsidering their travel plans following the airport disruption.
Three return services between Dublin and London, Dublin and Amsterdam, and one return flight between London and Knock were canceled yesterday.
Two return flights to Lyon from Dublin were also canceled yesterday following industrial action by ground workers at Lyon airport.
The airline on Friday canceled 19 flights in a string of cancellations that began last weekend, affecting thousands of holidaymakers.
It comes as further travel chaos could be on the way, after Spain-based Ryanair cabin crew announced plans to strike for a further 12 days this month.
Their unions are demanding better working conditions for workers, making the announcement yesterday, the last day of a cabin crew strike, which led to the cancellation of 10 Ryanair flights.
Cabin crew plan to strike three times later this month, with protests taking place at the 10 Spanish airports where Ryanair operates.
Current security waiting times are 35 minutes for Terminal 1 and 15 minutes for Terminal 2, according to the Dublin Airport website.
Aer Lingus Regional founder Padraig Ó Ceidigh said he believed the problems would persist for the rest of the year.
Speaking on Newstalk, Mr Ó Ceidigh said: “I think this is something that is going to take between four and six months to resolve as there is now a combination of factors which are seriously affecting flights and canceling flights. flights not only to Dublin but all over Europe too.
“Obviously one of them has to do with the huge Covid outbreak, and on top of that there are the problems that airports are having, especially Dublin airport in terms of having enough manpower. -labor or personal power to manage the flow of passengers.”