Table 6. Top 10 U.S. Airports ranked by September 2006 System* Scheduled Enplanements,,,,, "Passenger numbers in millions (000,000)",,,,, September 2006 Rank,Airport,September 2006 Enplaned Passengers,September 2005 Rank,September 2005 Enplaned Passengers, 1,Atlanta ,3.0,1,3.1, 2,Chicago O'Hare ,2.7,2,2.8, 3,Dallas-Fort Worth ,2.1,3,2.2, 4,Denver ,1.8,6,1.6, 5,Los Angeles Intl ,1.8,4,1.8, 6,Las Vegas ,1.7,5,1.6, 7,Phoenix ,1.5,7,1.5, 8,Houston Bush ,1.4,10,1.3, 9,Detroit Metro ,1.4,9,1.4, 10,Minneapolis-St Paul ,1.3,8,1.4, "Source: Bureau of Transportation Statistics, T-100 Market",,,,, * System equals domestic plus international,,,,, Note: Percentage changes based on numbers prior to rounding.,,,,,