By train
Reaching Niseko from Sapporo by train is a tricky affair, requiring a transfer of trains at Otaru, and perhaps a long wait as well; there are only six daily local trains between Otaru and Niseko. But, if it's between December and March, and you decide to leave Sapporo at around 8:00 or 12:30, you can get to Niseko on a direct train. The limited express train, appropriately named the Niseko Ski-Express, makes the run in 2 hours at a cost of ¥4560. Return Ski-Express trains depart from Niseko at 10:00 and 16:00. There is no charge for this train with the Japan Rail Pass.
By Skybus
A convenient door to door airport shuttle bus servicing all hotels in Niseko operates 365 days a year. Skybus was founded in 2005 and also provides transport to and from other various ski fields throughout Hokkaido. More information at Skybus
During winter months, numerous limousine bus services are provided to various ski resorts in Niseko at a cost of ¥1900-¥2300 each way. In addition, two public bus lines run buses from New Chitose Airport NCA to Hirafu. Both operate on a regular timetable during the ski season, with the Chuo Bus having 5 trips to Niseko and 5 return to NCA daily while Donan Buses have 4 each way.Times are subject to change from season to season, but each can be contacted by phone Chuo +81 11 231 0500, and Donan +81 123 465701. In the 2006/7 season, the cost of a one-way ticket is ¥2300 and a return is ¥3850. The trip takes about 3.5 - 4 hours, depending on the road conditions. This is an excellent way to see the countryside, the snow covered farm lands and the quaint houses.