Irish holidaymakers departing Dublin Airport at certain times in recent weeks have reported "chaotic" scenes and long delays.
People arriving at the terminals for early morning flights have faced huge delays in getting through security, with some missing flights over the issue.
Daa, who oversees Dublin Airport, said the "shortage of security screening staff is the key contributory factor to the current difficulties".
Similar issues have been reported at airports in the UK, particularly Manchester Airport where a shortage of security personnel and the attempt to recover after Covid-19 are causing delays.
While airport passengers are limited in what they can do to avoid the chaos, one expert has shared his top tips to get through security speedily.
“Often if there is more than one security officer at an x-ray machine, chances are one is a trainee, so the line may go a little slower," said Shahzad Ali, CEO at Get Licensed.
Although it might seem like a better option to go to a machine with more staff, it could actually be a slower process, as the Express reports.
As airports rush to recruit new staff to cope with demand, there could be many more staff training at security.
“When picking a queue, try to keep an eye out for business flyers.”
Business travellers might only have a small laptop case or handbag so aren’t likely to take as long at security, he said.
However, as the Easter holiday season takes off, most people in the security queues will likely be tourists rather than business travellers.
Mr Ali added: “Spot the right queue. Believe it or not, business travellers usually get through security quicker as they have less baggage.
“Make sure your clear plastic bag isn’t covered up by anything in the tray.
“If it’s seen to be covered or looks like it’s hidden inside a bag, you are more likely to be stopped and checked.
“Make sure your clear plastic bag and belongings are separate in a tray.”
Keeping the clear plastic bag containing toiletries visible in the security tray might help passengers get through the process more quickly.
People should also make sure they have already ditched any liquids that are over 100ml before security.
"It makes it so much easier and quicker for security if you prep your carry-on luggage and remove any restricted items," he said.
“Wear sensible shoes (slip on are the easiest) and remove any jewellery, belts and glasses.
“Also make sure you have your liquids in a clear plastic bag. Take an extra 10 minutes to prepare your bag and make everything quicker for yourself and security.”
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