United Airlines currently has 228 widebody aircraft: 74 Boeing 777-200s/200ERs, 46 787-9s, 37 767-300ERs, 22 777-300ERs, 21 787-10s, 16 767-400ERs, and 12 787-8s. Just over one in five of the Star Alliance member’s mainline equipment is a twin-aisle machine. Capacity ranges from just 167 seats on its low-capacity, high-premium 767-300ERs, to a high of 364 seats on its non-ER, so-called ‘domestic’ 777-200s.