Baltimore/Washington International Thurgood Marshall Airport

Baltimore/Washington International Thurgood Marshall Airport (KBWI) sits 10 miles south of downtown Baltimore and 30 miles northeast of downtown DC. Commercial service is dominant (Southwest is the dominant carrier) and the field handles a meaningful flow of business aviation. For Baltimore-DC corridor private aviation, KBWI is one of three commercial alternatives (alongside KDCA and KIAD), with the principal advantage of less stringent slot pressure than KDCA and faster ground access to downtown Baltimore than KIAD. The three runways at KBWI (15R/33L 10,520 ft, 10/28 9,520 ft, 15L/33R 6,000 ft) handle every current business jet without restriction. Signature Flight Support operates the principal private terminal. Field elevation is 146 feet, no density-altitude concerns. The dominant operational considerations are East Coast winter weather, summer thunderstorms, and the structural slot pressure during peak Southwest banks. KBWI makes sense for private aviation primarily for downtown Baltimore charters, the Hopkins / federal research corridor between Baltimore and DC, and the Maryland corporate flow (Constellation Energy, T. Rowe Price, Under Armour proximity). Ground time to downtown Baltimore is 15–25 minutes via I-95; downtown DC via I-95 and the Beltway is 45–75 depending on traffic.