Dallas Fort Worth International Airport (IATA: DFW) is the main international airport serving Dallas and Fort Worth in Texas, USA. It is one of the largest and busiest airports in the world by area and passenger traffic. The airport is located between the cities of Dallas and Fort Worth, about 25 km from downtown Dallas and 30 km from Fort Worth. DFW opened in 1974 and was designed as a major hub airport for North America, allowing passengers to connect easily between domestic and international flights. It is the main hub for American Airlines, one of the largest airlines in the world.