Liverpool John Lennon airport expects to handle more than 64,000 passengers over the Easter bank holiday weekend.
The total is forecast to be 40% up on the equivalent four-day period last year.
Flights to sun destinations such as Alicante, Malaga, Palma, Faro, Tenerife, and Dalaman expected to be busiest, along with closer to home places such as Belfast, Dublin, Cork, Jersey, Paris and Amsterdam.
The Merseyside airport said it was keen to remind passengers that restrictions on liquids taken in hand luggage remain unchanged.
“Whilst plans are in place to introduce the latest generation security equipment that will enable the carriage of larger volumes of liquids in hand luggage, this equipment won’t start to be installed at the airport until later this year,” a statement said.
This came as London City airport introduced next generation CT scanners, meaning that passengers no longer need to remove laptops or liquids, and can carry bottles containing up to two litres in carry-on bags.
A Liverpool airport spokesperson said: “The Easter getaway brings the busiest holiday period of the year so far.
“We don’t expect lengthy queues for our passengers, however travellers should remember that security restrictions regarding items in hand luggage including liquids, are still in force at the majority of UK airports including Liverpool and because the airport will be busier than usual, passengers should allow plenty of time to pass through the terminal.”