A flag 'flies' in front of the building. = There is a flag 'flying' in front of the building.
The restaurant 'made a flying start' by filling up on opening night.
After some difficult years, the company is 'flying high' again.
(..) Live, Eric. Fight the cold! Live and fight Einar! Fight Einar. Fight Einar. Odin has answered you. They were only flying clouds. You are blind. They were Odin's daughters. I heard the singing of their battle swords... as they rode across the sky. (..)1958 The Vikings