Canadian carriers Air Canada and WestJet Airlines said they both sold more tickets during last month than in the same period of the previous year. Montreal-based Air Canada said passenger traffic rose 6,4 percent in the period compared to a year earlier while capacity increased by 1,7 percent. Air Canada’s load factor rose 3,5 percentage points, up to 79,8 percent. Canada’s number 2 carrier WestJet Air...