London Heathrow is preparing to launch a major wave of infrastructure upgrades in 2026, backed by a £1.3 billion investment programme designed to enhance passenger experience, strengthen operational resilience and modernise key airport systems. The funding forms part of Heathrow’s current five‑year H7 regulatory plan and follows a year of record growth and improved punctuality at the UK’s busiest airport.
The 2026 investment package includes significant work across multiple terminals. A major refurbishment of Terminal 4 is scheduled to begin, featuring a new multi‑storey car park and an upgraded check‑in hall. Construction will be phased to ensure the terminal remains fully operational, with completion expected by 2031. Heathrow will also begin installing a new dedicated baggage system for Terminal 2, engineered to handle up to 31,000 bags per day and improve overall baggage resilience across the airport.
Airport officials say the upgrades are aimed at future‑proofing Heathrow’s infrastructure as passenger numbers continue to rise and demand for more efficient, accessible travel grows. The investment also supports the airport’s wider UK supply chain, reinforcing Heathrow’s role as a major contributor to the national economy.
The 2026 programme builds on Heathrow’s strong operational performance in 2025, when it was named Europe’s most punctual hub airport and delivered record passenger growth. With further enhancements planned under the H7 framework, Heathrow is positioning itself for sustained recovery and long‑term competitiveness in the global aviation market.
London Heathrow, Terminal 5, London, England, Wikimedia Picture by Warren Rohner
