Real Gross Domestic Product: Air Transportation (NAICS 481) in Maryland was 1904.90000 Mil. of Chn. 2009 $ in January of 2022, according to the United States Federal Reserve. Historically, Real Gross Domestic Product: Air Transportation (NAICS 481) in Maryland reached a record high of 1904.90000 in January of 2022 and a record low of 532.50000 in January of 2002. Trading Economics provides the current actual value, an historical data chart and related indicators for Real Gross Domestic Product: Air Transportation (NAICS 481) in Maryland - last updated from the United States Federal Reserve on April of 2024.