Is it Dezhou, Shandong? There is no direct flight. The quickest and most convenient route is,

Take the T7 train from Chengdu to Shijiazhuang, around 200 yuan, usually starting at 10 in the morning and arriving at 9: 00 the next morning.

Then it takes 4 hours to get to Dezhou by car or change trains in Shijiazhuang, about 50+ yuan, and about 5.6 hours 10 yuan.