Expect more flight cancellations, US transport chief says
US Transportation Secretary Sean Duffy sought to assure Americans on Saturday it remains “safe to fly” after an hours-long ground stop, but warned of more flight cancellations as airlines grapple with thousands of stranded passengers. More than 20,000 flights were impacted by Friday’s rare nationwide flight stoppage, and the effects were rippling across the industry, with more than 3,800 US flights already cancelled Saturday and another 2,100 delayed, according to tracking…