What is the drinking age onboard Air Canada flights? I will be taking 3 flights onboard Air Canada. In couple days on April 8, I will be flying from LAX to YYC and on the 12th from YYC to YVR and on the 17th back home from YVR to LAX. I was wondering if the drinking age onboard the flights has to deal with the province the flight will be landing at. Please reply A.S.A.P.