The flight itself was OK and the service very good. But it left HK late by one hour, which made us miss our connexion in Toronto (en route to Ottawa). Air Canada rebooked my wife and I on different flights, me at 23h15,her at 0h30. And altough she was an Elite member, she could not get on the 23h15 flight while at least 15 other stanby passengers got in. We were travelling with a third person who was also placed on the 23h15 flight and was ready to exchange with her but they refused. In the end, she arrived home at 01h45 instead of 21h30, 34 hours after having left our hotel in Singapore.