If you dont bring anything automatic you should be fine. Try to keep the blade lengths under 4 " and perhaps try to avoid assisted openers too.
No push daggers, switchblades of any kind or butterfly knives either.
I would recommend something the size of a Spyderco Delica, even the Endura would be ok but that may upset someone if your stopped for some reason. A leatherman would also be good in addition to your folder, and a decent flashlight wont cause any problems.
Customs wont give you any grief bringing things into or out of the country, just put them in your checked baggage and not your carry on.