Travelers suffered through another day of cancellations. It could get worse as holiday approaches

United Airlines, which depends on the airport in Newark, New Jersey, canceled the most flights among U.S. airlines for a fifth straight day. Tia Hudson was back at Newark Liberty International Airport for the fourth straight day, trying to catch a United Airlines flight home to Louisiana. United Airlines CEO Scott Kirby blamed a shortage of federal air traffic controllers for massive disruptions last weekend at its Newark hub. “Staffing at FAA’s air traffic facilities in NY is at 54%,” Cruz tweeted. The FAA is training about 3,000 new air traffic controllers, but most of them won’t be ready anytime soon.