After spending over 18 hours on American Airlines’ longest flight from Dallas / Ft. Worth to Hong Kong, I was quite ready to stretch my legs and move around. We got to Hong Kong immigration after about five minutes and had about a ten minute wait to clear immigration.
Outside of immigration, we went by the Hong Kong Airport Express and MTR kiosk where I purchased a round trip transfer from Hong Kong Airport to Kowloon Station for HKD 160 (about USD $30). The Airport Express is a direct rail link between the airport, Kowloon and Central Hong Kong that runs every ten minutes. It is very quick and very efficient, as is much of the public transportation in Hong Kong.
We intentionally worked in a long, 22-hour layover in Hong Kong into our itinerary because, frankly, we all wanted to spend a night in Hong Kong!