Sapporo (Okadama) line of JAL (navigation company HAC) is established from October 27, 2020.
It is going to navigate three flights a week (Tuesday, Wednesday and Thursday). There is special navigation partly for New Year holidays
Please confirm the following about the details such as navigation days.
Hokkaido air system https://www.info.hac-air.co.jp/
News release https://www.info.hac-air.co.jp/wp-content/uploads/2020/08/HACPRESSRELEASE_200002.pdf