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 said Sunday.

Canada’s largest airline now says it will resume flights Monday evening. Air Canada said in a statement that the union 'illegally directed its flight attendant members to defy a direction from the Canadian Industrial Relations Board.

The decision by the union representing the 10,000 workers means that travel chaos will continue for at least a second day. Air Canada said it had suspended its reopening plan until Monday evening.