Delta Air Lines (NYSE:DAL) reported quarterly earnings of $1.72 per share which missed the analyst consensus estimate of $1.81 by 4.97 percent. This is a 0.58 percent increase over earnings of $1.71 per share from the same period last year. The company reported quarterly sales of $20.186 billion which beat the analyst consensus estimate of $17.654 billion by 14.34 percent. This is a 21.07 percent increase over sales of $16.673 billion the same period last year.