•Book by August 1, 2011 11:59, from your city of departure. 4 A1 X2 Y+ L$ u, A7 g& A•Valid for travel between July 27 and October 31, 2011 & O1 I# [, D9 {. p: V# n: e/ p具体内容自己看吧 8 \$ A" k$ l5 D2 m; }http://www.aircanada.com/en/offe ... t/asiadiscount.html