Credits to @Inuyasha8215

United was formed by the amalgamation of several airlines in the late 1920s, the oldest of these being Varney Air Lines,[1] created in 1926 by Walter Varney who later co-founded the predecessor to Continental Airlines. In 1997, United became one of the five founding airlines of Star Alliance, of which it remains a member today. After its merger with Continental in 2010,[16] United consistently ranks as one of the world's largest airlines; it is currently first by the number of destinations served and third in terms of revenue and fleet size.United Airlines, Inc. is a major American airline headquartered at the Willis Tower in Chicago, Illinois.[10][11][12] United operates an extensive domestic and international route network across the United States and all six inhabited continents[13] primarily out of its eight hubs, with Chicago–O'Hare having the largest number of daily flights[14] and Denver carrying the most passengers in 2023.[15] Regional service is operated by independent carriers under the brand name United Express