The JR East South Hokkaido Rail Pass allows unlimited rides on the JR Hokkaido Lines and Jr East Lines.
The pass is ideal if you want to travel from Narita or Haneda Airport to Tokyo, and from Chitose Airport to Sapporo area. The pass allows rides on the Shinkansen and limited express trains throughout Tokyo to reach areas like Aomori and Sendai, and the new Hokkaido Shinkansen which started its operation in March, 2016.