The union representing 10,000 striking Air Canada flight attendants said Sunday it will challenge an order for them to return to work, adding that “we remain on strike.”

All Air Canada planes remained grounded late Saturday despite the Canadian government intervening to end a strike called by cabin crew members that resulted in hundreds of flights being cancelled and ...

At Toronto Pearson International Airport on Saturday morning, a few dozen Air Canada employees were picketing in front of the departures terminal.