Thanks for the clarification, although I was only referring to having to ditch the locking folders. I didn't think the ditching of the fixed blade was needed, although it might be problematic (i.e. Less than legal) transporting it to and from the airport.
Legally, locking folders are no worse than fixed-blade knives. You can carry either in a public place if you have a good reason, and you can have either in private places without needing the reason.
As a side note, if its not illegal to own a locking blade, just carry it, another option could be to just ship it to your house prior to flying home.
It's not illegal to carry it if you have a good reason, any bringing it home after a trip abroad would be a good reason. So you don't need to ship it.