As of mid-afternoon, with Americans gearing up for July 4 Independence Day celebrations, more than 600 flights within, into, or out of the United States had been canceled, and more than 3,300 were delayed, according to flight tracking service flightaware.com. The numbers on Friday were grim as well, with 587 U.S. flights scrapped among a global total of 3,061 cancellations, the site said. Sunday was also looking problematic, with more than 100 flights already canceled. The airport chaos is prompting a record level of road travel by Americans seeking to dodge flight trouble, a travel industry group said. For days, amid a surge in travel as summer rolls in, horror stories have abounded as travelers were stranded at airports, enduring odysseys to reach their destinations. The airline industry was devastated in the early stages of the Covid-19 pandemic as people stayed close to home, but air travel has rebounded as health measures were eased. And although federal Covid-19 relief … [Read more...] about Hundreds of flights axed as US kicks off long holiday weekend