Named for Albert Bond Lambert, an Olympic medalist and manufacturer of Listerine, the airport rose to international prominence in the 20th century, thanks to its association with Charles Lindbergh, its groundbreaking air traffic control, its status as the hub of Trans World Airlines, and its iconic terminal. The airport serves as a focus city for Southwest Airlines. In 2010, 12.3 million passengers traveled through the airport. It is the largest and busiest airport in the state with 250 daily departures to about 90 domestic and international locations. Louis County between Berkeley and Bridgeton. It is about 10 miles (16 km) northwest of downtown St. Louis International Airport (IATA: STL, ICAO: KSTL, FAA LID: STL) is an international airport serving Greater St.