What is Cheapest way to ship to Alaska from mass?

If you have time to spare, then Parcel Post by the USPS will be the cheapest. If speed is more important, then Priority Mail is your best choice. Stay away from UPS or FedEx, as it will cost you your first born. If it is something that is heavier (more than 70 lbs) or larger than what the USPS will accept, then go through a freight forwarder.

This is a common problem for people who live in Alaska, and also in Hawaii, because not all merchants will ship via USPS, so sometimes it's challenging to find an affordable shipping solution.