If perhaps misinterpreted the question as (paraphrasing) "in what jobs do you get PAID to fly" rather than "in what jobs do you travel quite a bit on company funds."

In answering the first question, to state the obvious, pilots and FAs get paid to fly. I also, sometimes, get paid to fly. I am a consultant, and if the client requires me to fly on Sunday (actually, requests, since I can choose not to do so), the client pays for my time door-to-door. Since I'm bonused based on billable hours, I get a piece of that.

FF