Book by February 22, 2011, midnight, from city of departure. 1 `/ b- x3 V1 K5 O8 ^* {0 A ZValid for departures from February 22 to May 31, 2011. * a1 V$ a& m# E5 hAll travel must be completed by May 31, 2011. * T7 L: Z5 w2 T. YValid only on Air Canada operated flights (codeshare flights are excluded).