BA flight London to Dusseldorf . . . . landed in Edinburgh
The wrong flight plan was filed so as far as the flight crew and air traffic control were aware it was going to Edinburgh. The cockup was only discovered when the plane landed and the announcement was made "Welcome to Edinburgh" . . . . passengers pointed out they were supposed to be in Dusseldorf!
BA is working with WDL Aviation who ran the flight under a leasing arrangement to find out why it filed the wrong flight plan.
https://www.bbc.co.uk/news/business-47691478