What's the best way to travel from Capital Airport to my hotel in Changping District?

I'm not clear where exactly in Changping you are going to stay? But changping district has been connected with the subway system. From airport, you can take airport shuttle bus line 6 to Olympic Green, then change to subway line 8 to Zhuxinzhuang, then you can take subway Changping line to Changping district.

Thank you, Dave. Very helpful!