Wall Street analysts expect Delta Air Lines (DAL) to post quarterly earnings of $0.34 per share in its upcoming report, which indicates a year-over-year increase of 36%. Revenues are expected to be $12.83 billion, up 0.6% from the year-ago quarter.The consensus EPS estimate for the quarter has been revised 2.1% lower over the last 30 days to the current level. This reflects how the analysts covering the stock have collectively reevaluated their initial estimates during this timeframe.Before a company reveal ...