Flying you are limited to 10 pounds in checked luggage as it is hazmat.
Regulations prohibite air freight of any amount. As pretty much everything that is shipped USPS/UPS/FedEx to AK is air freight no one ships it to AK.
AML can ship it up, but not cheap and as mentioned you would want to be shipping a large quantity. They have a minimum size and everything smaller than that costs the same amount.
If you let them know how many boxes to expect they will hold stiff untill all boxes arrive. Otherwise they will ship what comes in.
An example. I used them to forward tires to Ketchikan. A pallet cost $90 (which was also the minimum at the tie) and all 8 tires fit on a pallet, so all 8 where $90. However, if the tires had arrived at AML in Seattle days a part, so that each one shipped separately, than I would have been charged $90 for each shipment.
When I used AML to ship my guns and a little over 300 pounds of ammo from Ketchikan to Anchorage it was over $500 because the only way to avoid Canada was to ship it down to Seattle, then back up.