I refuse to tempt the TSA or the airline gate personnel. They can ruin my trip before it begins with an over-zealous interpretation of the regs (and their interpretation is God). I have a cheap cloth duffle bag that is large enough to hold my entire pack, including my trekking poles. I check the entire thing, minus fuel and matches. Out of sight; out of mind, and nothing can jump ship (without help) enroute.
The only items I have to source at my destination are stove fuel and strike-anywhere matches. I've thought about scattering my Esbit fuel tablets in with my meal packs, figuring the TSA wouldn't recognize or question them, but never felt like taking the risk. I have also shipped the tablets – in an odorproof sack – to myself. They can't leak, evaporate, or self-ignite, and the cardboard shipping box would ignite long before the tablets ever would. No one ever suggested shipping regulations were logical.
My trekking poles are GG LT4s (carbon fiber), so to give them extra protection from baggage handlers, I drop them into a mailing tube and strap that to my pack, inside the duffle. I put a pre-stamped self-addressed padded mailing envelope in my pack and use that to ship the duffle home when I get to my destination.
At the end of my hike, I just buy another mailing tube and ship my trekking poles, knife, and stakes home since I no longer have a duffel. I just check my pack raw since without food, all my gear easily fits inside – even the hip belt and shoulder straps. Unused fuel and matches get dumped. Southwest (and I suspect most if not all other) airlines won't accept a pack with anything strapped to the outside.