The FAA doesn't actually schedule flights - but its vital role in organizing air traffic across the US means that airlines would be forced to ax flights if there aren't enough controllers available to manage the skies safely. Globally, there were 3,044 flights canceled. More than 3,000 other flights were delayed in the United States, and 8,346 were delayed throughout the world. Of the American flights, United Airlines canceled 11 percent of its scheduled flights on Friday, Jet Blue canceled 14 percent of its flights, Delta canceled 5 percent and Southwest Airlines canceled 3 percent. American Airlines canceled just 2 percent, and budget airline Frontier canceled 4 percent.
