Well, there are more cases linked to a single karaoke bar in Quebec than in all international flights during the last two weeks... This is why we need science based facts on: 1- what is the risk a traveler carry the virus compared to the random person in the street and 2- what is the risk to be infected during a flight compared to day to day activities (for this one, it looks pretty low from what I read until now - probably because of the mandatory masks, some health checks even if they are incomplete, and filtering of the air in the cabin).