Officials expected it to take up to four days for workers and snow plows to clear the streets in Montreal, where dozens of flights were cancelled and several more suffered delays. In the United States, more than 3,000 flights have been cancelled since Christmas Day including almost 750 on Thursday, as a winter storm killed more than a dozen people and snarled holiday travel across the north-east.
Officials expected it to take up to four days for workers and snow plows to clear the streets in Montreal, where dozens of flights were cancelled and several more suffered delays. In the United States, more than 3,000 flights have been cancelled since Christmas Day including almost 750 on Thursday, as a winter storm killed more than a dozen people and snarled holiday travel across the north-east.