The airlines agreed to maintain some routes and meet other conditions to secure the Transportation Department’s approval of their merger.
The airline’s chief executive, Ben Minicucci, said in an interview that closing its acquisition of Hawaiian Airlines would allow it to expand, including on international routes.
She was a fiery lawyer from eastern Kentucky who charged coal companies with discrimination for their refusal to hire women. Her campaign was a success.
The company, a spinoff from General Electric, has been plagued by financial losses in its wind unit and, more recently, accidents involving the failure of turbine blades.
Officials in some countries started cutting rates last year, but others, including those in Europe and the United States, have taken a more cautious approach.
Ms. Nuzzi told her editors about the relationship that had turned personal, the outlet said. A representative for Mr. Kennedy said the pair had met only once.