Omicron cancelled more than 1000 flights on the Christmas weekend, hitting airline crews badly

Airlines canceled nearly 1,000 flights on Sunday as the omicron variant of Covid-19 spread rapidly, increasing the number of sick calls from flight crews. Airlines have canceled around 1,500 flights in the United States since Friday, delaying travel over the busy holiday weekend, which carriers expected to be among the busiest days of the pandemic. […]