WestJet flight attendants began a strike on Sunday, August 2, disrupting travel during one of Canada’s busiest summer holiday weekends. The Calgary-based airline had cancelled 615 flights by Sunday, affecting about 250,000 passengers, as contract negotiations continued without an agreement. Dispute Centres on Pay for Ground DutiesThe labour dispute involves about 4,400 flight attendants represented by the Canadian Union of Public Employees Local 8125. WestJet Encore services operated with Q400 aircraft and flights sold through codeshare partners are not expected to be affected. Other WestJet services may face further cancellations depending on how long the strike continues.