Here are some synonyms for different meanings of "fly":
To move through the air:
* Soar: (implies grace and majesty)
* Glide: (implies smooth and effortless movement)
* Float: (implies lightness and lack of effort)
* Hover: (implies staying in one place in the air)
* Swoop: (implies a sudden and rapid descent)
* Dart: (implies rapid, quick movement)
* Zoom: (implies rapid movement with a high pitch)
To travel by air:
* Air travel
* Fly a plane
* Take a flight
To escape:
* Run away
* Flee
* Bolt
* Escape
To move rapidly:
* Dash
* Rush
* Speed
To be easily influenced:
* Gullible
* Naive
* Credulous
To be illegal:
* Unlawful
* Prohibited
* Against the law
To be offensive:
* Rude
* Insulting
* Improper
Please provide me with the specific context you're interested in, and I can give you more specific synonyms.