Delta Air Lines (DAL) came out with quarterly earnings of $1.50 per share, missing the Zacks Consensus Estimate of $1.56 per share. This compares to earnings of $2.03 per share a year ago. These figures are adjusted for non-recurring items.This quarterly report represents an earnings surprise of -3.85%. A quarter ago, it was expected that this airline would post earnings of $2.37 per share when it actually produced earnings of $2.36, delivering a surprise of -0.42%.Over the last four quarters, the company h ...