There are no direct flights from Shenzhen to Fenghuang Ancient Town. You need to first fly to Tongren Fenghuang Airport (TEN, 40 km from the ancient town), such as Donghai Airlines DZ6245 connecting to Longjiang Airlines LT5614 (total travel time 5.5 hours, fare ¥750), then take the direct airport shuttle bus (¥21, 40 minutes).