Just some stuff that I know of:
- So far, Hawaiian has made it a pretty smooth experience.
- Not a Hawaiian rule but it surprised me when I heard about it. You need a lock for each lockable hole. If there are four holes for locks, you need to have 4 locks.
- TSA doesn't have a rule against placing ammo in the same case as the firearm but Hawaiian does, technically. "Ammunition must be packed separate and apart from any firearm unless the firearm's case has a designated storage space for ammunition that secures it and protects it from shock and movement". I usually put it in my gun case and they have never raised an issue. So technically, you can and should have it in your regular checked luggage, but not in the gun case, as long as it is in the original box and reasonably secured from damage. I have brought home lots of ammo booty in checked luggage in a heavy cardboard box that was stuffed with towels to keep the ammo from bouncing and they didn't complain.
- I don't think the airline is allowed to mark a bag to indicate that it contains a firearm but Hawaiian always places some kind of special sticker on my checked bag with the firearm that says something unusual like "fragile" or something to indicate a firearm, I forget exactly what the sticker said. I kind of want to raise an issue but never have. I am hoping that it makes them aware to not "misplace" my bag...to avoid any imperial entanglements.
- I was told once that I can check in at the kiosk and just indicate somewhere you have a firearm then go to the counter to fill in the paperwork. I never was able to figure out how to do that so I just head straight to customer service. Don't know if this annoys them.
- FYI, If you fly on Alaska Airlines, you can bring up to 50 lbs of ammo. All other airlines including Hawaiian limit you to 11 pounds.