Transport n cost

From Osaka (5 days) to Tokyo(5 days) and onto Niseko which is the best n cheapest way to travel in Jan.Any suggestions wld ve greatly appreciated
Thanks

These posts should give you a few pointers:

Thks for info.Another question .Other than private taxi is there any way I can get to Chitose airport fr Niseko in early morning?I ve a 9.30 am flight and I was advice to stay in Sapporo overnight.
Thks

My brief searching couldn’t find any early morning bus from Niseko to Chitose, I would also advise to stay in Sapporo the night before you leave (or even near Chitose airport)