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.
(..) - Tell 'em to go fuck themselves. That goes for you, too, Marty. You're off the air. - He wants to talk to you. - Who's replacing Beale? - We're flying Snowden up. - Everybody hold it. Let's see how the other networks handle this. - The ten o'clock news opened with it. (..)1976 Network