http://www.aircanada.com/en/offers/air/asiadiscount/asiadiscount.html?ws_section=Intro&ws_type=offer&ws_asia=promo_code&acid=em|wbsvr|null|null|Save+20%25|2013-01-16|INTRODUCTION+PARAGRAPH|0634938775768438051-8109173&EMS_MID=EMSx25x33600#-ASIA20