Heathrow Airport plans a massive £49 billion expansion, adding a third runway to almost double its passenger capacity.

Heathrow Airport plans a £49 billion expansion, including a £21 billion third runway, set to open within a decade. This would almost double the airport's annual passenger capacity from 84 million to 150 million. The project aims to add 30 new daily routes and improve flight times, but faces opposition from environmentalists and local residents. The UK government supports the expansion to boost economic growth.