Air Canada began canceling flights Thursday ahead of a possible strike by its flight attendants that could impact hundreds of thousands of travelers. A complete shutdown of the country's largest airline threatens to impact about 130,

The union representing Air Canada’s 10,000 flight attendants said on Sunday that it would defy a back-to-work order and continue a strike that shut down Canada’s dominant carrier and severely disrupt...

The airline said it had canceled 700 flights, expected to affect about 130,000 passengers daily.