Here's another point to be very aware of if you're looking for a non scissor solution... You know those thread cutters (Fons and Porters) has them, that are the pendant kinds that look like round broach/pendant you'd wear on your neck or can attach to your keychain that have the little divits around them where you can place your thread to cut it... these have razor blades in them and aren't allowed either, so don't buy one in efforts to avoid the problems of bringing scissors. It's a waste of money as they will get confiscated.
Explosive blessings, abundance and inspiration to you all!
- The Creative Seamstress