Has to be worse than that. 20 is still way too many degrees of separation if every region operated on a hub and spoke model. I would imagine we're seeing two t

Has to be worse than that. 20 is still way too many degrees of separation if every region operated on a hub and spoke model. I would imagine we're seeing two to four groupings of sequential routes which are subsidized access. A floatplane which hits every island in the archipelago, like a bus route, before reaching the international airport with jets. Likewise with bush planes in Arctic villages, and regional turboprops that hit a sequence of rural airports because they only attract a few passengers a day on their entire route.