United Airlines Holdings, Inc. operates one of the world's largest airlines, connecting passengers and freight shippers across six continents. The company generates the vast majority of its revenue from passenger fares, supplemented by cargo transport, its MileagePlus loyalty program, and ancillary services such as catering and third-party maintenance. United maintains a mainline fleet of over 1,000 aircraft and provides regional service through independent carriers operating under the United Express brand. As a founding member of the Star Alliance, the airline offers an extended global network to its customers. The company competes primarily with other major global carriers by focusing on premium travel offerings, international route expansion, and fleet modernization.
