Box cutters (with any blade length) are totally banned in carry-on. Yes, that includes the tiny ones you use to open packages.
Also banned: scissors that are disguised as other objects—like a pen that turns into scissors. The TSA isn’t fooled by spy gear, my friend.
Can I Take A Small Scissors On An Airplane | Detroit Chinatown
And please, don’t bring scissors that are also knives, like those multi-tool ones. They’re considered weapons, and you’ll lose them.
Checked Luggage: The Scissors Sanctuary
If you absolutely need those giant shears for a project, pack them in your checked bag. There’s no size limit for scissors in checked luggage.
Just wrap them carefully so they don’t stab your socks. Nobody wants angry socks.
Pro tip: put the scissors inside a hard case or a rolled-up towel. Your luggage will thank you, and you’ll avoid a surprise hole in your favorite shirt.
