How much extra charges and what train available for JR pass holder to pay and take fr Tokyo to Hakkodate and Sapporo to Tokyo with bed and reserved seat?There are two direct night trains from Tokyo to Hakodate, but they arrive very early in the morning: the Cassiopeia arrives at 5:01 and the Hokutosei at 6:34. Arrival in Sapporo is roughly 4.5 hours later.
The supplement charge starts from around 12,000 yen on the Hokutosei and from around 19,000 yen on the Cassiopeia.