Over €20,000 worth of cocaine was seized in two operations over the weekend.
Three men have been arrested in connection with the seizures at Dublin airport.
Customs officers found almost €17,000 of the drug on Friday after searching the luggage of a man who was heading to Ibiza.
In the second seizure Gardaí confiscated €8,000 of cocaine from two men, who were arrested while also leaving for Ibiza.