Delta Air Lines on Monday unveiled an updated Delta One suite for some of its longest-haul planes, marking its first refresh of the top-tier seat in a decade as airline competition for well-heeled travelers ramps up. The new suites, which Delta said will debut on its Airbus A350-1000 aircraft in 2027, will include beds that are three inches longer than the older suites and a new pillow-top cushion. The new design will give travelers more leg and knee room, said Mauricio Parise, Delta's vice