ATLANTA, Sept. 4, 2013 /PRNewswire/ -- Delta Air Lines (NYSE: DAL) today announced plans to purchase 40 Airbus aircraft for delivery between 2015 and 2017. The order, which comprises 10 international widebody A330-300 and 30 large domestic narrowbody A321 jets, is the latest step in Delta's prudent fleet renewal to enhance profitability while diligently managing capacity. MORE I did not see this one...