Because of this thread I'm shipping two dozen arrows with broad heads to my friend/PH one month before I go. I'm sending early to make sure they arrive. More expensive as I'll have to have duplicate gear to continue my practice sessions with.
In fact, when booking my flight I turned down all routes that stopped in the Netherlands. I go Cincinnati, Dulles, Dakar, Johannasburg.
My back-up will be to pack the broad heads and arrows in checked baggage separate from my bow. I'd like to put my TD curve in a carry-on bag but I don't know if I could do that. I packed a recurve from WI to KY several years ago. I had to put the limbs in carry-on and the riser (club?) in a checked bag.
Here' s the rub. You can't even have confidence that asking the airline or the airport will prevent problems. Depending upon the person(s) you encounter they have different interpretations!
For example, one TSA Prince may say belt off and the next (same airport) leaves you alone.