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For the geographical region, see South China. China Southern Airlines Company Limited is an airline headquartered in Baiyun District, Guangzhou, Guangdong Province, China. It is the world's fourth-largest airline measured by passengers carried and Asia's largest airline in fleet size, revenue and passengers carried.
Southwest Airlines Co. (NYSE: LUV) is a major U.S. airline headquartered in Dallas, Texas, and the world's largest low-cost carrier. The airline was established in 1967 by Herb Kelleher as Air Southwest and then adopted its current name, Southwest Airlines, in 1971 when it began operating as an intrastate airline wholly within the state of Texas.