Dallas Fort Worth International Airport is one of the busiest airports in the world by passenger traffic and aircraft operations, serving as a major hub for both domestic and international travel. Located between the cities of Dallas and Fort Worth in Texas, the airport covers approximately 17,207 acres, making it one of the largest airports in the world by land area. Opened in 1974, DFW replaced the older Love Field as the primary commercial airport for the Dallas-Fort Worth metroplex. The airport is the primary hub for American Airlines, which operates the majority of flights there, and serves hundreds of destinations across the globe. DFW features five terminals connected by the automated Skylink people mover system, which allows passengers to transit between terminals without exiting the secure area. The airport has undergone continuous modernization and expansion projects to accommodate growing passenger demand.