 3,000 canceled. Massive numbers linked back to the computer problems. Delta, with over 1,000 flights canceled itself with its hub in Atlanta, hit the hardest. United following with hundreds canceled, impacting Chicago O'Hare. Passengers have been stranded, camped out at the airports. American Airlines says it's getting passengers hotel rooms and food. American Airlines is hoping to be mainly back to normal on Saturday. Alex Stone, ABC News.