Big Differences: How United Airlines Widebody Use Varies By Hub

United Airlines has 220 widebody aircraft, consisting of Boeing 767-300ERs, 767-400ERs, 777-200s (non-ERs), 777-200ERs, 777-300ERs, 787-8s, 787-9s, and 787-10s. Nearly one in four of its mainline aircraft is a twin-aisle (23%).