Some airports have been granted extensions to install new scanners to detect prohibited items.
The Government has given some UK airports more time to install security technology that could end the need for 100ml liquid restrictions.
The new scanners detect prohibited items with greater accuracy, meaning passengers will no longer need to take items out of their hand luggage.
Nick Barton, CEO of Birmingham Airport, said: “Birmingham Airport has invested £60m in a new security hall and scanning equipment. From the 1st June our customers will start to see the benefits of the new security systems as we roll them out which will result in a speedier, simpler pre-flight security screening process for our customers.”
“In the meantime, our existing restrictions remain in place. It is timely to remind all customers that they still need to remove electricals during the search process and only carry liquids, pastes and gels, up to 100ml, in 20 x 20cm in resealable bags in their hand luggage.”
East Midlands Airport is part of the Manchester Airport Group (MAG) and they are expanding the terminal to accommodate the equipment.
A MAG spokesperson said: "We continue to make good progress at all three of our airports on the introduction of new security screening equipment, as part of the UK-wide programme. This is a complex programme of work requiring the expansion of terminal facilities, while at the same time maintaining operations during construction.
"We are currently rolling out the new technology lane-by-lane at Manchester and London Stansted airports, with several new lanes already in operation. Work is also underway on major construction projects at both Manchester and East Midlands airports to expand the size of the terminals to accommodate the new equipment.
"This will see the new scanners in place on a large number of our security lanes by June 2024, with the full completion of the programme expected the following year."
Passengers travelling over the summer are asked to check the security requirements at their departure airport before travelling.
Mark Harper, Transport Secretary, said: "These cutting-edge scanners will make air travel safer and easier for passengers by strengthening security even further.
"The UK is leading the world with its roll-out of this technology, but it’s important we give those airports yet to meet the deadline a second chance to get the job done. Until they do, passengers should continue to check before travelling."
The Government is also looking to introduce financial penalties for those airports that miss any further deadlines.