"Table 3. Top 10 U.S. Airlines, ranked by Jan.-September 2006 System* Scheduled Enplanements",,,,, "Passenger numbers in millions (000,000) ",,,,, Jan-Sep 2006 Rank,Carrier,Jan-Sep 2006 Enplaned Passengers,Jan-Sep 2005 Rank,Jan-Sep 2005 Enplaned Passengers, 1,American ,74.5,1,74.3, 2,Southwest ,72.2,3,66.2, 3,Delta ,55.7,2,67.0, 4,United ,52.6,4,50.2, 5,Northwest ,41.2,5,43.6, 6,Continental ,35.2,7,32.0, 7,US Airways,27.5,6,32.9, 8,America West ,16.1,8,16.7, 9,AirTran ,15.0,11,12.2, 10,SkyWest ,14.6,12,12.2, "Source: Bureau of Transportation Statistics, T-100 Market",,,,, * System equals domestic plus international,,,,, Note: Percentage changes based on numbers prior to rounding,,,,,