WestJet announced early Saturday morning that 81 of the day's scheduled flights have been scrubbed ahead of the stike deadling on Sunday.

The Canadian Union of Public Employees Local 8125 gave the airline notice early Thursday morning, the union said in a post on its website.

WestJet, Canada's second-largest airline, is preparing to wind-down operations ahead of a potential strike or lockout by its flight attendants. But an agreement to gradually halt…