Need to go Fenghuang from Chengdu

I suppose you refer to Fenghuang ancient town? The time is surely not enough for a one day trip. There is no direct transfer between. By flight, you may need to fly to Tengren or Changsha first and then go to Fenghuang by bus. By rail, you need a ride to Huaihua which takes around 5.5 to 25.5 hours one way, based on the ride type you choose. Then you need a bus from Huaihua to Fenghuang.