I have flown, internationally even, with a cast iron cornbread pan. You know, or any Southerner knows, the ones with the shapes like little ears of corn. (By the way, no self-respecting person ever eats cornbread with sugar in it.)

I have also flown, but only domestically, with my great grandmother's cast iron frying pan (passed along after a death in the family).

Both cast iron items came through just fine.

I'm really not as weird as I sound.