Air travel continued to be severely disrupted in the United States on Saturday, with bad weather in parts of the country adding to the impact of a massive spike in Covid-19 infections fuelled by the Omicron variant. The United States had 2,604 cancelled flights, more than half of the 4,529 cancelled worldwide, shortly after 4:30 pm (2130 GMT), according to tracking website FlightAware. In addition, 3,447 domestic flights were delayed on Saturday, out of a total […]