United Airlines Logo — United Airlines is an airline U.S. that has its administrative headquarters in Chicago , Illinois in the United States . On May 3rd of 2010 it was announced that Continental Airlines and United Airlines would merge to give rise to the first airline in the world. Today, United is the third airline the largest U.S. and seventh in the world although not the most financially stable. This was due to the aforementioned crisis of 2,002 — two thousand and three when it became nearly bankrupt, although at present the company is in the process of improving its economic performance.
On October 28, 2009, United Airlines ended commercial operation of its Boeing 737 , carrying Callsign flight 737, which operated from Dulles International Airport Washington to San Francisco International Airport with three intermediate stops, a in Chicago , then Denver and one in Los Angeles . The aircraft chosen for the final of the 737 historic flight on United Airlines was the registration N331UA, after landing at the airport in San Francisco was greeted with the traditional water salute from airport fire trucks. So United Airlines ended the operation of their Boeing 737 after 41 years of service. The Boeing 737 N331UA, after its last flight on United was taken to Victorville where it will be preserved. States with Continental Airlines , United Airlines is listed on the NYSE under the ticker symbol UAL and began trading on 1 October 2010, after the close of the merger with Continental Airlines calling the company after its merger United Continental Holdings, Inc.