Book by February 22, 2011, midnight, from city of departure. 2 ~/ \. O2 V# }, I5 O: yValid for departures from February 22 to May 31, 2011. O7 t! y7 M8 ]# QAll travel must be completed by May 31, 2011. V9 \" @4 s9 {/ F4 o' gValid only on Air Canada operated flights (codeshare flights are excluded).