I used to fly offshore rigs and absolutely despised every minute of it. No more!
Flying the rigs is probably as close to airline flying as you can get in the helicopter profession.... the only major difference is the takeoff and landing.
Probably a good idea to ask yourself: "What did I hate about it?".
Having flown helicopters for some years, I wanted a change. So, well over twenty years ago I obtained my commercial fixed wing licence. Then I sat on a few airline jump seats and thought "Oops, I couldn't do this; too boring!" So I never have.