MTR to Mongkok from Hong Kong Airport

Hey, you must refer to Sino Centre, right? Well, airport shuttle bus actually is the best way to go. Take bus no. A21 and get off at Sino Center, Nathan Road. After getting off, you can see your destination.

Anyway, here is the direction by MTR:
take Airport Express line to Tsing Yi, where transfer to Tung Chung line and get off at Lai King. Then you need to transfer to Tsuen Wan line and get off at Yau Ma Tei. Leave from exit A2 and you can walk to your destination in around 5min.