Holiday in golden mile kowloon to Hong Kong airport at 5:00 am. How can I go?

If you want to leave at 05:00, you can still catch the night bus. Walk to Kowloon Hotel, Nathan Road to take the bus N21 to the airport directly. The bus fare is HKD23, and the travel time is about 80 mins. Well, if you leave later about 05:30, you can walk to Haiphone Road, Nathan Road to take the bus A21 to the airport. The fare is HKD33, and the travel time is about 65 mins.