MONTREAL/TORONTO >> Air Canada’s unionized flight attendants reached an agreement with the country’s largest carrier today, ending the first strike by its cabin crew in 40 years that had upended travel plans for hundreds of thousands of passengers. The strike that lasted nearly four days led the airline that serves about 130,000 people daily to withdraw its third-quarter and full-year earnings guidance.

The carrier said it would gradually resume operations later today, and a full restoration may require a week or more. The union said it has completed mediation with the airline and its low-cost affiliate Air Canada Rouge.

“The Strike has ended. We have a tentative agreement we will bring forward to you,” the Canadian Union of Public Employees said in a Facebook post.

Air Canada said some

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