As most of you know, I do some pretty heavy travel for kiting sometimes and deal with my kite bag(s) in two layers... Figured I'd lay it out somewhere for posterity. Quick list - http://johnbarresi.com/gear/ One, I have the main travel bag which contains everything including clothes and my normal kite bag:
http://amzn.to/1VWmXn7
Inside that, I have one of these two "normal" kite bags...
Breeze Fabrice Works bag
Rev Multi-Kite Bag (official)
Everything in the "field kite bag" is arranged so my weakest kites are down the center of the burrito roll and anything in the pockets are arranged to balance pressure and avoid poking fragile areas.
Packed in the remaining space (around the field kite bag / inside the airline kite bag) are my clothes and such, using various kinds of modular bags like these...
http://amzn.to/1Ghs4Hx
All of that gets strapped with something like this...
http://amzn.to/1LdsopA
And the zippers get locked with this...
http://amzn.to/1PlyBDM
Then the whole shebang gets checked (airplane cargo).
I'm very lucky - during my 23 years of airline travel for kiting (literally hundreds of flights), I've never lost a bag for more than a couple days, and the only [very rare] damage has been to the main outer bag (wear and tear), or to SUL dual line spars (this can be overcome with PVC tubing sheathes for delicate items).
Packing this way, I only have to carry one big bag and a couple of small carry on bags.