"Table 4. Top 10 U.S. Airlines, ranked by May 2007 System* Scheduled Enplanements",,,,, "Passenger numbers in millions (000,000) ",,,,, May 2007 Rank,Carrier,May 2007 Enplaned Passengers,May 2006 Rank,May 2006 Enplaned Passengers,Pct. Change 2006-2007 1,Southwest,8.930,2,8.489,5.2 2,American,8.454,1,8.621,-1.9 3,Delta,6.075,4,6.002,1.2 4,United,6.062,3,6.057,0.1 5,Northwest,4.759,5,4.784,-0.5 6,Continental,4.270,6,3.994,6.9 7,US Airways,3.308,7,3.233,2.3 8,AirTran,2.079,9,1.773,17.3 9,America West,1.832,8,1.840,-0.4 10,JetBlue,1.813,14,1.417,27.9 "Source: Bureau of Transportation Statistics, T-100 Market",,,,, * System equals domestic plus international,,,,, Note: Percent changes based on numbers prior to rounding.,,,,,