As Ed said, flying boned out meat is likely going to be your least expensive option. We fly commercial to hunt other locations around the state several times each year, and the best way we have found is to use Rubbermaid totes and load them to 99lbs with boned out meat. At least with AK airlines, they charge you for either extra bags or overweight bags, but not both so you may as well load them to just under the 100lb mark to maximize your money. Totes are readily available in Anchorage at places like Walmart or Target, and we usually strap them shut with duct tape at the airport after weigh in. Carrying a small luggage scale to preweigh your totes and other bags keeps the meat shuffle in the airport to a minimum

If you are overnighting in Anchorage, many hotels have freezers they will let you store your stuff in overnight which will at least get a nice chill on the meat before you fly. Otherwise the airline is pretty good about labeling them as either frozen or chill...meat should be fine in totes for the duration of your trip home assuming no exceptionally long delays or outrageously hot weather.