"Table 4. Top 10 U.S. Airlines, ranked by March 2008 System* Scheduled Enplanements",,,,, "Passenger numbers in millions (000,000)",,,,, Mar 2008 Rank,Carrier,Mar 2008 Enplaned Passengers,Mar 2007 Rank,Mar 2007 Enplaned Passengers,Pct. Change 2007-2008 1,Southwest,9.310,2,8.631,7.9 2,American,8.241,1,8.581,-4.0 3,Delta,6.441,3,6.573,-2.0 4,United,5.748,4,6.132,-6.3 5,US Airways**,4.959,7,3.328,49.0 6,Northwest,4.579,5,4.860,-5.8 7,Continental,4.365,6,4.265,2.3 8,AirTran,2.196,8,2.014,9.0 9,JetBlue,2.062,9,1.930,6.9 10,SkyWest,1.890,11,1.878,0.6 "Source: Bureau of Transportation Statistics, T-100 Market",,,,, * System equals domestic plus international,,,,, ** US Airways March 2008 number is the report of the merged US Airways and America West. The March 2007 numbers were reported separately by US Airways and America West. America West reported 1.888 million system passengers in March 2007.,,,,, Note: Percent changes based on numbers prior to rounding.,,,,, ,,,,,