Dear Jason,
Greetings from Elian, Top China Travel.
Thank you very much for the question.
If you take flight to Changsha and like to visit Wulingyuan scenic area by bus, you will need to take taxi, metro or airport shuttle bus from Changsha airport to Changsha West Bus Station first. And then you can take bus to Wulingyuan. The direct shuttle bus from Changsha to Wulingyuan is only available at Changsha West Bus Station, and there are only three shifts every day. The bus departs at 07:50 am, 09:20 am, and 14:30 pm. The bus fare is 103 yuan. It is about 316km from Changsha to Wulingyuan and the bus will take more than 4 hours.
If you don't catch the direct bus, you can take bus or train to Zhangjiajie first and then transfer to Wulingyuan. It takes more than 5 hours for the train to arrive in Zhangjiajie from Changsha. After you arrive at Zhangjiajie bus station, there are direct buses to Wulingyuan and the bus departs every 5 minutes. It will take more than 1 hour to get to Wulingyuan.
You can also take flight to Zhangjiajie from Changsha. After getting off the airplane, you can take bus or taxi to Zhangjiajie Central Bus Station and take the bus to Wulingyuan.
Any further request or question, please feel free to contact with us.
Best regards
Elian