Originally Posted by cxfan1960

Less expensive, more direct and much faster than Airport Express in most cases. A22 is a little more expensive but very fast - first stop (12km) just before the Tsing Ma Bridge; second (another 20km) in Shanghai Street, already in Jordan; third (500m or so) just across Nathan Road, also in Jordan. However, if you need to go to South Jordan and Tsimshatsui, A21 may be better but you need to pay attention to the bus stops.