The union representing 10,000 striking Air Canada flight attendants said Sunday it will challenge an order for them to return to work, adding "we remain on strike." The Canada Industrial Relations Board ordered airline staff back by 2 p.

Flight attendants for Canada's largest carrier, Air Canada, will continue to strike despite a back-to-work order issued by the Canadian government, the Canadian Union of Public Employees (CUPE) said in a statement Sunday.

Air Canada's fleet of hundreds of planes remained grounded on Monday morning after striking flight attendants refused a government-backed order to get back to work and called on the airline to return to the bargaining table.