As of 5 November 2024[update], the United Airlines fleet consists of 976 mainline aircraft, making it the second largest commercial airline fleet in the world.[1][2][3] United Airlines operates a mix of Airbus and Boeing narrow-body and all Boeing wide-body aircraft. Additionally, United operates more widebody aircraft than any other U.S. carrier.[4]
With an average age of 16.3 years, United has the oldest fleet of all major US airlines.[citation needed] Their oldest planes are the Boeing 767-300ER from the early 1990s, which are between 30 and 32 years old;[citation needed] however, United recently[when?] placed several orders for new narrow-body and wide-body aircraft and are expecting over 700 new planes in their fleet by 2033.