The DAA are advising passengers travelling through Dublin Airport over the Bank Holiday weekend to arrive at least 90 minutes before their flight departs.
310,000 passengers will pass through Dublin Airport and the August Bank Holiday weekend is the busiest time at the airport.
Over 2,100 flights will depart and arrive over the course of the three days.
Siobhán O'Donnell from the DAA says security regulations can slow people down and should be factored in:
