Amid winter storm in US, more than 5000 flights cancelled a day before Christmas holidays

US hail storm: Amid the winter storm that hit several regions of the United States on Thursday, more than 5,000 flights have been cancelled, while thousands of airlines diverted their routes to avert any emergency-like situation. The last-minute cancellation created major chaos at the airports as the families have been returning to their homes for the Christmas holidays. 
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