Houston George Bush Intercontinental Airport (IAH) serves Houston, United States, and sits roughly 23 miles from the city center. The airport lies at an elevation of 97 feet.

IAH functions as a major domestic hub, with departures connecting Houston to destinations across multiple regions of the United States, including the western, midwestern, and Pacific coast areas of the country. The pattern of traffic reflects a strong east-west and north-south domestic network, typical of a large connecting hub serving flights that link different corners of the country. Arrivals into IAH also draw from destinations along the southeastern United States, reinforcing the airport's role as a domestic connecting point within the national air travel system.

Given its low elevation near sea level and its inland Gulf Coast location, travelers should note that Houston's climate can bring convective weather patterns, particularly in warmer months, which may influence flight conditions. The airport's position as a domestic hub means that travelers connecting through IAH will typically experience itineraries linking various U.S. regions rather than a predominantly international traffic mix, based on the pattern of routes served.