George Bush Intercontinental Airport Houston (IATA: IAH, ICAO: KIAH) (for International Airport Houston) is 23 miles north of downtown Houston, Texas. It is located between Interstate 45 and Highway 59, inside the Houston city limits in the Aldine area, and is adjacent to Humble. It is frequently referred to as Houston Airport.

Bush Intercontinental is Texas' second largest air facility, after Dallas-Fort Worth International Airport. The airport has flights to parts of the United States, as well as to Canada, Central and South America, Europe, Africa and Asia.

George Bush Intercontinental Airport served 40,187,442 passengers in 2011 making the airport the tenth busiest for total passengers in North America.

With 30 destinations in Mexico, Bush Intercontinental offers service to more Mexican destinations than any other U.S. airport. Houston is also the headquarters of United Airlines, and Bush Intercontinental is United's largest hub, with 800 daily departures.