During busy times on an average day at Heathrow Airport, planes can land as often as one every 45 seconds. Serving more than 83 million passengers in What could a third runway at Heathrow mean for tourism and the climate?

However, Chancellor Rachel Reeves has told the BBC: "Sustainable aviation and economic growth go hand in hand." Heathrow is already the UK's busiest airport, serving more than 80 million travellers a year with its four passenger terminals and two runways.