DHL will add three Boeing 777 freighters, through an agreement with Southern Air Holdings, that will expand the integrated carrier's capacity and boost transit times along key growing trade routes between the Americas, Asia and the Middle East. The first B777 freighter, which began service on Aug. 15, connects DHL hubs in Cincinnati, Bahrain and Hong Kong, moving around the world with each operation. The B777 freighter is expected to burn around 20 percent to 25 percent less f...