Pretty much all airlines have allowed them on so far. TSA allows them through security. I’d hazard a guess the hilt itself is 12-ish inches.I have seen that the lightsaber is between 34-36 inches long, but I am not sure what it would be if I detached the hilt? I have contacted Westjet to ensure they will let it on the plane, but they want the dimensions. I want to ensure I am giving them accurate information. Worst thing would be that we come through with two lightsabers that they won't allow on the plane!