"Table 12. Top 10 U.S. Airports, ranked by April 2006 Domestic Enplanements",,,,, "Passenger numbers in millions (000,000)",,,,, Apr. 2006 Rank,Airport,Apr. 2006 Enplanements,Apr. 2005 Rank,Apr. 2005 Enplanements, ,,,,, 1,Hartsfield-Jackson Atlanta,3.1,1,3.4, 2,Chicago O'Hare,2.5,2,2.5, 3,Dallas-Ft. Worth,2.2,3,2.1, 4,Los Angeles International,1.8,5,1.7, 5,Denver,1.7,7,1.5, 6,Las Vegas McCarran,1.7,4,1.7, 7,Phoenix Sky Harbor,1.7,6,1.7, 8,Orlando,1.5,8,1.4, 9,Houston Bush Intercontinental ,1.4,11,1.3, 10,Detroit Metro Wayne County,1.3,9,1.3, "Source: Bureau of Transportation Statistics, T-100 Domestic Market",,,,, Note: Percentage changes based on numbers prior to rounding,,,,,