From McNamara Terminal bus to Detroit Metro Airport, line 125 bus to Windsor, ON, bus to Chatham, ON, then taxi to St. Clair. 3hrs 48min $121. From Airport Station subway to West Park Station Stop #1, line 22 bus to Cleveland, OH, bus to Congress @ Saint Antoine, line 125 bus to Detroit, ON, bus to Thamesville, ON, then taxi to St. Clair. 9hrs 22min $161. From London airport (YXU) taxi to London, train to Sarnia, then taxi to St. Clair. 1hrs 43min $105. From Windsor airport (YQG) drive to St. Clair. 1hrs 43min $17. From Sarnia airport (YZR) taxi to St. Clair. 25min $50.