London Heathrow Airport has completed a £1 billion upgrade of its security infrastructure, becoming the world’s largest airport to fully deploy next-generation CT scanners across all four terminals. The new technology allows passengers to keep liquids and large electronics in their hand luggage, removing the need for plastic bags and significantly simplifying the security process.
The CT scanners deliver high-resolution 3D imaging, enabling faster throughput while maintaining stringent security standards. Heathrow says the upgrade will reduce queue times, ease congestion during peak periods, and create a more predictable and less stressful passenger experience.
Beyond operational benefits, the rollout supports Heathrow’s sustainability goals by eliminating the need for nearly 16 million single-use plastic bags each year. The investment also aligns with the airport’s broader long-term strategy to improve reliability and prepare for future growth.
Heathrow’s performance metrics underline the impact of recent improvements: in 2024 it was named Europe’s most punctual hub airport, with more than 97% of passengers waiting less than five minutes at security, while baggage handling efficiency rose to over 98% in 2025.
Heathrow CEO Thomas Woldbye said the completion of the programme ensures passengers can expect a consistently smooth security experience, combining faster processing with environmental benefits and reinforcing the airport’s focus on service quality.