Union leaders for Air Canada’s flight attendants said members would return to work after a deal was reached to end a three-day strike that grounded hundreds of flights, hitting around 500,000 customers.

More than 10,000 Air Canada flight attendants will continue their strike despite back-to-work orders from the Canadian government, the Air Canada component of the Canadian Union of Public Employees (...

Air Canada, in a statement, estimated that the strike, which began early Saturday morning, had resulted in the cancellation of flights for 500,000 passengers.