"Table 9. Top 10 U.S. Airlines, ranked by Jan.- October 2006 Domestic Scheduled Enplanements",,,, "Passenger numbers in millions (000,000)",,,, Jan-Oct 2006 Rank,Carrier,Jan-Oct 2006 Enplanements,Jan-Oct 2005 Rank,Jan-Oct 2005 Enplanements 1,Southwest,80.3,1,73.7 2,American ,64.4,3,64.5 3,Delta ,53.2,2,66.2 4,United ,48.2,4,46.1 5,Northwest,37.7,5,39.7 6,Continental ,29.7,7,27.2 7,US Airways,26.5,6,31.9 8,America West ,16.8,8,17.5 9,AirTran ,16.6,10,13.6 10,SkyWest,15.6,11,13.2 "Source: Bureau of Transportation Statistics, T-100 Domestic Market",,,, Note: Percentage changes based on numbers prior to rounding,,,,