George Bush Intercontinental Airport: IAH, is a Class B international airport in Houston, Texas—the United States fourth largest populated city, and serving the Houston–Sugar Land–Baytown metropolitan area, the fifth-largest metropolitan area in the United States. Located about 23 miles north of Downtown Houston, between Interstate 45 and U.S. Highway 59, George Bush Intercontinental Airport has scheduled flights to domestic and international destinations. The airport is named after George H. W. Bush, the 41st President of the United States.
George Bush Intercontinental Airport served 40,187,442 passengers in 2011 making the airport the tenth busiest for total passengers in North America. In 2006, the airport was named the fastest growing of the top ten airports in the United States by the United States Department of Transportation. Houston Bush Intercontinental is the largest hub for United Airlines with an average of 800 daily departures.