Most of this was posted in earlier thread here https://pinside.com/pinball/forum/topic/anybody-have-any-pinball-shipping-to-ak-advice but I've updated below.

Fastenal might be a good option, but word through the grapevine (unconfirmed) is that they recently stopped offering this service to Alaska. My personal experience is that from anywhere away from the west coast YRC is a good option. I've consistently been quoted ≈$400-500 from the east coast and ≈$300-400 from the west coast by them. There are many more options from the west coast, especially the Seattle area. Most recently I shipped a game with American Fast Freight from Seattle and they offered about the same pricing as YRC, but are a bit better at handling the Alaska side of things imho. Lynden and Carlile are options from the Seattle/Tacoma area as well, but I've found their rates somewhat higher than YRC, or AFF and they're a little less user friendly if you're not familiar with the shipping biz. Air freight via Alaska Air Cargo can be a reasonable option, especially from the Seattle area. For this, you will need a known shipper number with the TSA(takes about a month to get one) and is more expensive, but you will get your games within a matter of days, as opposed to weeks. Also, I would recommend that if you don't have access to a forklift or loading dock you should have your shipment held for pick up at the terminal in Anchorage, that way you'll save on delivery and liftgate charges.

Also, one word of caution about shipping is to be sure that the whoever is providing the quote correctly classifies your freight per NMFC, since this is what will make the most difference in how much it costs and if improperly classified can sometimes result in additional charges being added at the terminal. Like you said, if you can get them packed two per pallet you should get a somewhat better rate than one per pallet.

Good luck with this, would be great to see more games make their way up here!