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.
(..) DOC: Up here! - Doc, what's going on? - Stand by. I'll park over there. MARTY: Yeah, all right. MARTY: Hey, right on time. Flying DeLorean? BIFF: I haven't seen one in years. MARTY JR: Sorry. Excuse me. Sorry. MARTY JR: I'm walking here! I'm walking here! - What the hell? (..)1989 Back to the Future Part II
(..) we don't need roads. BIFF: Say, Marty! Marty, I wanted to show you these new matchbooks... ...for my auto detailing I had printed up. A flying DeLorean? What the hell is going on here? - What the hell was that? - Taxicab. - Taxicab? I thought we were flying. - Precisely. (..)1989 Back to the Future Part II