how to go from guangzhou airport to hongkong airport?

As I know, from the airport, there is no direct buses to HKIA, You need to take a taxi or bus to either of these hotels: Garden Hotel, Dongshan Hotel, Hotel Landmark Canton, China Hotel by Marriott and Haitao Hotel.

In front of these hotels, you can buy the ticket and take the direct buses to HKIA. I suggest you take the bus at China Hotel by Marriott. From the airport, you can take the subway line 3 to Jiahe Wanggang Station, where you can transfer to line 2 to Yuexiu Park. Take the Exit E and walk about 240 yards to the hotel.