It is easy to get to Tohoku from Tokyo, Osaka or Sapporo. There are domestic flight deals via ANA for foreigners that you can take advantage of! Domestic flights from New Chitose Airport (Sapporo), Itami Airport (Osaka), Haneda or Narita Airports (Tokyo) will cost you less than SGD100 one way and take you approximately an hour to reach Tohoku. Find out more here!
ANA flies daily from Singapore to Tokyo.