Charter passengers using Dublin Airport this weekend are being advised to check in three hours before departure time.
This comes after Aer Lingus yesterday revealed that some 200 passengers missed flights over the last 10 days due to delays caused by enhanced security measures at the airport.
The Dublin Airport Authority has assigned additional staff and new security channels are to be introduced to tackle long queues.
The country's second largest tour operator, Falcon/JWT, warned yesterday that there could be further chaotic scenes at the airport if action was not taken before the start of the main package holiday season next week.
Falcon/JWT's managing director Damien Mooney said yesterday that the situation faced by passengers at the airport last weekend had been "wholly inappropriate".
He said chaos could return unless action was taken by the authorities in the airport prior to the start of the peak package holiday season after the May Bank Holiday.
Mr Mooney urged intending charter passengers to check in three hours before departure time.
