Karen: where are you going? I’d give different, more detailed information for FAI-ANC versus FAI-Adak versus FAI-Anaktuvuk Pass versus FAI-LAX versus FAI-ANC-Reykjavik. And a few different tweaks for Hawaii. Wrangell, AK has a cool system that solves lots of problems. Etc.
Stove: I’d highly recommend a butane-blend canister stove. No need to clean it on either end, just disconnect the stove head in advance and it won’t smell of fuel at all. It’s never wrong to throw in a 0.9-ounce BRS-3000T which, folded up in its little pouch probably doesn’t even scan as a stove part. Then at your destination, any outdoor store or Walmart will have 110-, 220- and 450-gram canisters. For Adak or Hawaii, PM me – I have a few tricks to get butane canisters where the stores don’t stock them.
If you really like an alcohol set-up (and you can buy denatured fuel at a Home Depot, etc at your destination), then just rinse the stove, the fuel bottle, funnel, etc in plain water. Alcohol is infinitely soluble in water and a few good rinses will remove it all. Then set it out to dry. If you can’t buy alcohol at your designation, again, PM me – there are ways around that.
White-gas or kerosene stove? Sure, I could eventually get it clean enough to pass any objective test (I studied chemical engineering) but a screener could still deny it on general being-a-dick grounds. And you’d have to repeat the procedure before flying home. USPS shipping to yourself general delivery would be a lot easier and more reliable. But for me, the uncertainty and bother far, far outweigh just getting a $14 BRS-3000T.
Yes, lithium batteries have to be in your carry-on, NOT your checked bags. But you can bring your laptop (which has a large battery in it), an extra laptop battery, external cell-phone batteries, etc in your carry on. I’ve brought a lithium battery capable of jump-starting a 4-cylinder car with me on the jet several times.
Trekking poles, tent poles? In your checked bag. And consider a hard-sided suitcase or roller duffle so that the UL gear doesn’t get busted by baggage handlers. If you have some lodging or relative or a BPLer or a rental car where you could leave the luggage during your hike, your gear will be far safer in hard luggage (or even a sturdy cardboard box or ice chest*) than by itself in a plastic bag. If you don’t have a good place to store such luggage, it’s impressive how few people look inside of culverts and under bridges in rural locations. I’ve stashed food caches, sampling supplies, tools, luggage, etc in such places for weeks at times without any problem.
*We’re Alaskans – we all have multiple, huge ice chests, right?
And those nice, strong, clear plastic bags some airlines put around backpacks and car seats so the straps don’t catch on the conveyor belts and they don’t get as greasy and dirty? Never count on them being available. And save any that you get. A few little nylon cinch straps (“ny ties”) are great closures for the plastic bag. Nail clippers (in your carry on) will allow you to cut it off at the other end.