WestJet says it's still bargaining with flight attendants in hopes of a deal, but the company is beginning to keep planes on the ground as a "necessary measure" to protect travellers and their operations.

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…

The union representing 4,400 flight attendants at WestJet has issued 72-hour strike notice, setting the stage for a work stoppage that could ground flights in the middle of a busy…