I don't think Bethel even has a Walmart (we have one in Juneau, along with a massive Fred Meyer).
One thing I can't stress to people is do NOT skimp on the clothing. Alaska bush = mail order. And good luck getting 3 days off to non-rev to Anchorage to go shopping.. you'll get bumped. So fork out the $400 for a ticket on Alaska/PenAir and go confirmed.