Autumn travel plan-Hokkaido

Hi Uji and the other experts
Please recommend changes to the plan:
16/10 - arrive at Chitose at 1pm, drive to Toya
17/10 drive to Hakodate
18/10 Hakodate
19/10 drive to Niseko/Rusutsu
20/10 drive to Otaru
21/10 drive to Furano/Biei
22/10 rerutn car at Sapporo
23/10 Sapporo
24/10 Fly to Tokyo
25/10 Tokyo
26/10 Tokyo
27/10 depart to home

We hope to enjoy autumn foliage, to check out Salmon migration, to enjoy a good onsen roykan stay, to experience horse trekking (beginners), and we love fresh sashimi and we enjoy big open space of farm land. Appreciate your recomendations. Hope the plan is not too hectic.

Thanks!

If possible, I recommend to fly into Asahikawa Airport and leave through Hakodate Airport or the other way around. It will save you a lot of time, because you have to travel only half the distance.

Note also that the second half of October is very much towards the end of autumn already in Hokkaido. In southern Hokkaido, around Hakodate/Onuma Park you can probably still see autumn colors, but in other areas, especially in higher elevations, it might be a little bit late for autumn colors.