There is no direct bus from Guangzhou Airpor to Xinyi. Upon arrival, you could take shuttle bus Line 1 to its terminal at Guangzhou Railway Station and then walk to the nearby Provincial Bus Station. Here, you could take a coach to Xinyi directly. The coaches are in operation from 07:45 to 23:30, taking abou 8.5 hours to reach Xinyi South Bus Station. The bus fare is CNY135/adult.