Largest Aircraft: This Is Where United Airlines Flies Its Boeing 777-300ERs

United Airlines’ largest aircraft by length are itsBoeing 777-300ER twinjets, of which data from ch-aviation shows that the Star Alliance founding member has 22 examples at its disposal aged eight years old on average. According to aeroLOPA, they seat 350 passengers, which, curiously, doesn’t make them its highest-capacity jets. Indeed, that title falls to smaller but higher-density 777-200s (364 seats) and 777-200ERs (362 seats).