CNN
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More than 1,000 flights have been cancelled across the United States, according to the flight tracking site FlightAware, as severe winter weather threatens holiday travel.
As of early Thursday morning, 1,116 flights have been cancelled nationwide.
Chicago’s O’Hare International Airport leads the way, followed by Denver International and Chicago’s Midway International. Cancellations at those airports could have a wider impact, since they are busy hubs where travelers often change planes in order to reach other destinations. Thursday is expected to be the busiest pre-Christmas day for travel.
Weather forecasters are predicting a “bomb cyclone,” and the National Weather Service says more than 100 million people are under winter alerts and wind chill alerts — that’s roughly one-third of the US…