Yeah, curious how this will work in practice. I have a R/T pair of flights scheduled for Canada later this week. Looks that the border will be closed soon - and thus presumably flights canceled, but it's been a bit of a game of chicken; my curiosity is at what point they would cancel.
Would they potentially wait until past the check-in cutoff to cancel in order to put the onus on the flyers (no-shows), preventing refunds?