青衣長宏巴士總站

you can take MTR Island line from Shau Kei Wan to Central and walk to Hong Kong Station to change Tung Chung line from Hong Ko to Tsing Yi Station and get off at exit A1 to change KMB bus No.248M to 長宏巴士總站
Tsing Yi Station street map:http://www.mtr.com.hk/jplanner/images/maps/tsy.pdf
Fee:$11.2+$3.4=$14.6
Times:41+11=52 mins(not included the waiting times and walking times)
KMBbus No.248M information:http://www.kmb.hk/chinese.php?page=search&prog=route_no.php&route_no=248m
Hope above information can help you!