Help me about transportation from HKIA - Dorset Kwun Tong Hotel

I'm afraid no direct tranport can take you from the airport to your hotel except taxi. And the taxi fare is around 270HKD.

By bus: You can take shuttle bus no. E32 to TAI WO HAU RAILWAY STATION, where you need to transfer to bus no. 40, which can take you to KWUN TONG HOI YUEN ROAD. Upon your getting off, you can walk to your hotel then. The whole journey costs 19.2HKD per peson and the travel duration is around 140min.

By MTR: Take Express Train to Kowloon Station, where you can find your free shuttle bus taking you to the hotel directly. As for the shuttle bus schedule and location, you'd better condult the hotel staff in advance. The MTR fare is 90HKD.

To Disneyland, I suggest you take the hotel shuttle bus to Kowloon Station, where you can take Tung Chung Line to Sunny Bay. Then transfer to Disneyland Resort Line, which can take you to the attraction directly. Besides, the hotel shuttle bus can also take you to Tsim Sha Tsui, where you can take Tsuen Wan Line to Lai King Station. Then transfer to Tung Chung Line to Sunny Bay. After that, the Disneyland Resort line can take you there.