Originally Posted by skybluesea

Can you please provide an authoritative source that demands this today?

Air Canada continues to sell tickets and fly airplanes - if your statement was true then entire fleet should be grounded NOW - right?

and how would this be possible if AC stopped entirely.

Globe & Mail today "The federal government issued an advisory urging Canadians travelling overseas to come home as soon as possible, cautioning that “new restrictions may be imposed with little warning.”