Heathrow Airport Holdings Ltd. has sold Stansted Airport, the fourth busiest airport in the United Kingdom, to Manchester Airports Group for 1.5 million pounds. Manchester Airports Group already operates Manchester, East Midlands and Bournemouth airports. The sale is expected to close in February. "Stansted Airport and its people have been part of our company for a long time," Heathrow’s chief executive, Colin Matthews, said in a statement. “We wish the new owner...