The best method i've found for the un-named situations i encounter:
Glass mason jars for pickling. Clean them with gloves on, including lids. No finger prints!!! Then, once dry, pack them with your buds. Don't force nuggets in, just set them in, and when it's full, move onto the next jar. Still wearing gloves, seal your fingerprint-free jars with the fingerprint-free lids. Seal them tight, and then move them to an area with no herb, change your gloves, and CLEAN THE OUTSIDE OF THE JAR!!! This is a very important step. These jars are designed for storing food long term, and they seal really well, but any smell that might cling to the outside will set off a drug dog. Again, clean the sealed jars.
Then, wrap them in bubblewrap so they don't cling together in the suitcase. You can wrap the herb inside the jar, or the entire sealed jar, in a smell absorbing bag for extra protection, if you like. This method works. Many pounds have been moved over many years, with NO loss, using this method. Not by me, though, i've never even heard of Cannabis. Good luck.