Baltimore/Washington International Thurgood Marshall Airport, BWI, is an international airport serving the Baltimore–Washington Metropolitan Area in the United States. It is commonly referred to as BWI, BWI Airport or BWI Marshall, BWI being an initialism for "Baltimore/Washington International" and the facility's IATA Airport Code. Located adjacent to the Linthicum CDP in northern unincorporated Anne Arundel County, Maryland, the airport is about 10 miles south of Baltimore and 32 miles northeast of Washington, DC. It is named after Thurgood Marshall, a Baltimore native and the first African American to serve on the Supreme Court of the United States.
BWI is a focus city for Southwest Airlines, and is the busiest airport in the Baltimore–Washington Metropolitan Area. A record 21.9 million passengers traveled through BWI in 2010, an increase of 4.7% over the previous year, with July being the busiest month ever in the airport's history. This made BWI the 24th busiest airport of North America in 2010. The airport was also ranked 47th in the world in total aircraft movements in 2008.
In 2010, BWI was ranked as the best airport of its size (15–25 mil. passengers) in the world by the Airports Council International based on its 2009 Airport Service Quality survey. The airport also won second place for North American airports in the "Best Food and Beverage Program" of the 2010 Richard A. Griesbach Excellence in Airport Concessions Contest, sponsored by the Airports Council International.