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London Heathrow (LHR), the largest and busiest airport in all of the United Kingdom, has taken an exciting step into the future by completing its rollout of next-generation CT security scanners. This billion-pound investment has eliminated the need for passengers to remove things like liquids and electronic devices from their hand luggage ahead of their bags being scanned at security checkpoints, which it hopes will save time for its guests.
Alongside the operational benefit of this switch, it is also good news from a sustainability perspective, with 
London Heathrow Airport now also able to save millions of plastic bags that were previously required when passengers did have to remove liquids from their cabin bags. Another welcome by-product of the alteration is the fact that the 100 ml restriction on liquid vessels will no longer apply to travelers departing from Heathrow.
No More Liquid Restrictions
Earlier today, London Heathrow Airport announced that it had completed its rollout of new security scanners as part of an operational investment valued in the region of £1 billion ($1.35 billion). As well as making for a quicker and smoother process for its 84 million yearly guests, this milestone has also seen Heathrow become the largest airport in the world to complete its rollout, with this being no mean feat across its four large terminals.
According to the airport, the move has seen Heathrow install “state-of-the-art CT scanners, capable of servicing thousands of passengers an hour with significantly greater efficiency, while maintaining high safety and security standards.” As well as meaning that liquids and electronics can stay in your bag, the BBC also notes that, as a result, guests can now take liquid vessels with volumes of up to two liters. Heathrow CEO Thomas Woldbye said:
“Every Heathrow passenger can now leave their liquids and laptops in their bags at security as we become the largest airport in the world to roll out the latest security scanning technology. “
Tied To A Wider Improvement Program
From a sustainability angle, Heathrow Airport will also save materials and money by no longer needing to distribute almost 16 million small plastic bags a year to passengers, as was previously the case when liquids did still have to be removed from people’s hand luggage. With the new scanners reducing preparation time for travelers, Heathrow says the move “promises faster queues, less stress, and a smoother start to journeys.”
As it happens, the billion pounds that the facility invested in order to ubiquitously roll out its next-generation CT security scanners is just one of the ways in which the airport is putting its hands in its pockets to spend money on making its environment a nicer one for its passengers. Indeed, as the hub explained last July, it has also devised a £10 billion ($13.5 billion) private investment plan with which it hopes “to make every journey better.”
Among the aspects covered by this impressive initiative are the creation of new space within terminals for extra shops, lounges, and restaurants, the improvement of service levels, and the removal of three million tonnes of carbon. Heathrow aims for this plan, which it says is ‘customer-led’ and will run from 2027 to 2031, to result in “95% of passengers [rating] their journey as good or excellent.” The future certainly looks bright in West London!
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Operational Excellence
This news is the latest in a series of reasons to be cheerful for Heathrow Airport as far as its security operations are concerned, with the West London hub having achieved operational excellence last year in terms of its people-processing power. Specifically, the facility managed to process more than 97% of its passengers in fewer than five minutes at its various security checkpoints, making it the most punctual hub in Europe on this front.
Meanwhile, fewer of London Heathrow Airport’s passengers than ever before lost their checked luggage in 2025, with more than 98% of hold bags processed at the facility being loaded onto the correct flights. This represented an increase of 250,000 correctly loaded bags compared to 2024, and is particularly impressive when you consider the fact that, with over 84 million passengers handled, 2025 was Heathrow’s busiest year of all time.
