You can easily spend the whole of 3 weeks solely on Hokkaido for a more in-depth exploration. Your time of visit is good for autumn foliage in central and southern Hokkaido. Start in Sounkyo during early Oct and work down south via Biei and Furano to Sapporo and Otaru.

To truly appreciate the vastness of Japan's northernmost island, 8 to 14 days is considered the ideal duration. Hokkaido is nearly the size of Austria, and its highlights are spread across several distinct regions. If you only have 3 to 5 days, you are largely restricted to the Sapporo, Otaru, and Jozankei areas. A 7-to-10-day trip allows for the "classic" loop, including the flower fields of Furano and Biei, the volcanic landscapes of Noboribetsu, and the night views of Hakodate. However, if your goal is to visit the remote UNESCO World Heritage site of Shiretoko National Park in the east or go skiing in Niseko, you will need the full two weeks to account for the significant travel time between towns. Because Hokkaido lacks the dense Shinkansen network of Honshu, travel often relies on limited express trains or rental cars, making a slower pace essential to avoid spending your entire vacation in transit.