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...

More than 10,000 Air Canada flight attendants went on strike after a deadline to reach a deal passed, the union confirmed early Saturday.

“They are so far apart on a number of issues that they are going to need some help,” she said.