Heathrow confirmed a £1.3bn investment programme for 2026, following what the airport called a record year for growth and punctuality in 2025. The money is going into four areas: a Terminal 4 redevelopment, a new Terminal 2 baggage system, an AI camera network to speed up aircraft turnarounds, and accessibility improvements including a first-of-its-kind assistance tool for passengers with access needs.
CEO Thomas Woldbye framed it as a service commitment rather than just infrastructure spend: "Passengers should expect that every time they travel through Heathrow their journey is better than the last."
Terminal 4: a phased revamp, not a shutdown
Terminal 4 is getting a new multi-storey car park and an upgraded check-in area, with construction phased specifically to keep the terminal operating normally throughout. The full programme runs through to 2031, so this is a multi-year project rather than something that finishes this year — if you're flying from T4 in 2026, expect ongoing but managed building work rather than disruption.
Terminal 2: a bigger baggage system
A new dedicated baggage system in Terminal 2, built to handle 31,000 bags a day, is intended to cut misconnected luggage and reduce costs airlines eventually pass on to passengers. Heathrow already reports 98-99% of bags travelling on their passenger's flight as expected; this is aimed at holding that rate as passenger numbers keep growing.
AI cameras on the stands
A network of cameras is being installed across aircraft stands, using AI to analyse turnaround activity in real time. The goal is faster, more predictable turnarounds between one flight leaving a gate and the next arriving — which, cumulatively across a hub this size, is one of the bigger levers on whether the whole day's schedule stays on time. Full coverage is expected by the end of 2026.
Accessibility: a new assistance area and a personalised guide
Terminal 2 is getting a purpose-built assistance area with direct security access for passengers who need it. Alongside that, Heathrow is introducing what it describes as the first Tailored Travel Guide at a UK airport: passengers with access needs can input their travel details and get a personalised, step-by-step guide through the airport.
| Project | What it is | Timeline |
|---|---|---|
| Terminal 4 revamp | New multi-storey car park + upgraded check-in | Phased through 2031 |
| Terminal 2 baggage system | New system handling 31,000 bags/day | Part of the 2026 programme |
| AI stand cameras | Turnaround-time monitoring across aircraft stands | Full coverage by end of 2026 |
| Accessibility | New T2 assistance area + Tailored Travel Guide | Rolling out through 2026 |
FAQs
Will Terminal 4 building work disrupt my flight in 2026?
Heathrow says the work is deliberately phased to keep the terminal running normally, so day-to-day operations shouldn't be affected — but as with any live construction at a working terminal, allow a little extra time and expect some altered walking routes around the work areas.
What is the Tailored Travel Guide?
It's a new tool for passengers with access needs: you enter your travel details and receive a personalised, step-by-step guide through the airport. Heathrow describes it as the first of its kind at a UK airport.
Does this investment mean higher airport charges?
Heathrow's announcement frames the spending as funded through its existing regulatory settlement rather than as a new passenger charge, and ties it to maintaining the punctuality and baggage performance it reported for 2025. We'll flag it here if that changes.