Answered by Blanford, | May. 21, 2012 20:42
Hi, you could take a D type (D7314, D7316 etc.) from SY to Haikou East which will take you about two hour and a half. Then take the Bus 21 to the Haikou airport for about 50 minutes.
Alternatively, it is also convenient to take a coach to Haikou South from Sanya South Bus Station, which will take you around three and a half hours. After you arrival in Haikou south station, you need to take the Bus 35 firstly and get off at the Yibaqi Hospital, then take Bus 21 to the Haikou Airport.