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Over 4,000 flights cancelled due to Omicron
By EUobserver
Over 4,000 flights were cancelled around the world on Sunday due to Omicron-related causes, Reuters reports, with more than half of them US flights. The Christmas and New Year holidays are usually a peak time for air travel, but the rapid spread of the Omicron variant has led to a sharp increase in Covid-19 infections, forcing airlines to cancel flights as pilots and cabin crew quarantine.