Are you an immediate or extended family member of a Canadian or Canadian permanent resident flying to Canada?
If you do not comply, you will not be denied boarding, but you may face enforcement action upon arrival to Canada ranging from a verbal warning or a $1,000 fine.
You must be ready to show your ArriveCAN receipt upon entering Canada.
If you are an in-transit passenger whose final destination is not Canada, you do not have to submit your information.
Plan ahead and submit your information before heading to the airport: https://www.canada.ca/…/coronavirus…/arrivecan.html