Hi Erik,
Are you travelling outside of Canada? If so there are some precautions you need to take. Please email me offline.
I have travelled to more shows than I can remember. Maybe I am just lucky, but other than my bags getting to Baltimore late once and to Atlanta once. I have had no problems with transporting knives. There have been times when close to $80,000 have been in those two cases.
I would recommend buying a hard side suitcase, such as a Samsonite. Use all three locks, then put one of the locking straps through the handle that covers the number lock. Additionally, you can wrap security tape around the key locks. This will slow down the biggest thieves in the air line industry...baggage handlers.
As for someone stealing your case when it hits the baggage claim. First, get there as quick as you can. With most airlines it is not a problem for you to get to the baggage claim before your luggage does.
My bags have one other advantage, their weight. Most are very close to the magical 72 pounds (if they are a little over, then the curb side check in baggage handler gets a tip). Even when I was younger I was no world class sprinter. But I am here to tell you, that even now, it wouldn't take me very long to run down a theif trying to carry my 75 pound oversized Samasonite Hard Side suitcase.
One other thing about baggage handlers. When I have $40,000 of knives in each bag, those guys get a $5.00 tip per bag. They don't complain about the weight and the bags always get to the proper destination.