NEW YORK - APRIL 15:  Richard Anderson (L), CEO of Delta, and Doug Steenland, President and CEO of Northwest Airlines, answer questions during a press conference April 15, 2008 in New York City. Delta Air Lines and Northwest Airlines have announced a merger that will create the world's largest airline carrier if approved, saying that the merger will improve access for travelers and help deal with skyrocketing fuel costs. Getty Images logo Getty Images 14 months ago

NEW YORK - APRIL 15: Richard Anderson (L), CEO of Delta, and Doug Steenland, President and CEO of Northwest Airlines, answer questions during a press conference April 15, 2008 in New York City. Delta Air Lines and Northwest Airlines have announced a merger that will create the world's largest airline carrier if approved, saying that the merger will improve access for travelers and help deal with skyrocketing fuel costs.