Delta Air Lines (DAL) will raise its quarterly dividend by 15.0 percent to $0.4025 per share in 2019. This follows last year's 14.8 percent dividend hike and marks the 6th consecutive year of dividend increases by the air transportation company. The next dividend will be payable to shareholders of record as of the close of business on July 25, 2019, to be paid on August 15, 2019. A new annual rate of $1.61 per share yields 2.6% at a stock price of $61.66. "With efficiency gains from our operations, fleet transformation, and One Delta initiatives, we have solid line of sight to achieve our 1% cost growth target for the year," said Paul Jacobson, Delta's chief financial officer. "Our strong financial foundation and cash generation allow us to sustainably invest in the business, while maintaining our investment grade balance sheet and consistently returning cash to shareholders. With our cash flow exceeding original expectations, we are on track to return $3 b...