The ideal thing would be a decant because it is small and easily managable. You can control the tightness of the lid, making you feel much more safe about its contents staying inside. It will also go through customs. I would put it in a plastic ziplock just to be sure it doesn't leak anywhere.
I usually just take one or two bottles with me on a trip, being that it is for a week at most. Those should be tightly packed in their boxes and surrounded by socks and soft apparel. That can go in checked stuff. You can really take any bottle with you. The maximum amount you can take on in a carry-on is 3.4 ounces and that it the size of most bottles, excluding Creeds. So, go all carry-on and grab a bottle or two. Bring plastic bags just in case they get really hard on you. They will not confiscate the bottles and you should be fine!! Remember the plastic bags though. They have weird issues with liquids being in bags on the plane.