Ronald Reagan Washington National Airport (DCA) is a major airport serving the Washington, D.C. metropolitan area, known for its strategic location and operational complexity. Owned and operated by the Metropolitan Washington Airports Authority (MWAA), it primarily handles domestic flights and offers convenient access to the nation’s capital, making it a popular choice for business and leisure travelers[2][7]. The airport was initially designed with four runways but currently operates three intersecting runways: 01/19, 15/33, and 04/22, with the main runway (01/19) extended to 7,169 feet to enhance safety and accommodate more traffic[1][3]. Its airfield and terminal infrastructure have evolved over decades, including a significant terminal expansion in 2021 which added two new 50,000-square-foot security checkpoint buildings. This improvement streamlined passenger flow by allowing movement between gate areas without re-screening, reducing congestion and enhancing the post-security experience with expanded shopping, dining, and seating options[1]. DCA is notable for its operational challenges due to its proximity to downtown Washington, D.C., and complex airspace shared with military and government operations. Aircraft arrivals and departures often require precise procedures, such as low-altitude turns following the Potomac River and the use of Required Navigation Performance (RNP) approaches, to manage noise and ensure safety in this busy and constrained environment[10]. Despite slot restrictions, Congress recently approved additional flight slots, reflecting the airport’s growing demand and importance[10]. The airport supports a range of services including fixed-base operations, aircraft parking, ground transportation, and TSA PreCheck, catering to both commercial and general aviation needs, though general aviation faces stringent regulatory requirements[5][9]. Technological advancements and continuous infrastructure improvements keep Ronald Reagan Washington National Airport a key hub with a focus on security, efficiency, and passenger convenience, sustaining its role as a critical gateway to the U.S. capital[1][7].