"Table 3. Top 10 U.S. Airlines, ranked by January-April 2008 System* Scheduled Enplanements",,,,, "Passenger numbers in millions (000,000)",,,,, Jan-Apr 2008 Rank,Carrier,Jan-Apr 2008 Enplaned Passengers,Jan-Apr 2007 Rank,Jan-Apr 2007 Enplaned Passengers,Pct. Change 2007-2008 1,Southwest,33.503,2,31.338,6.9 2,American,30.597,1,31.506,-2.9 3,Delta,22.938,3,23.290,-1.5 4,United ,20.661,4,22.249,-7.1 5,US Airways**,18.282,7,12.204,49.8 6,Northwest,16.549,5,17.465,-5.2 7,Continental,15.793,6,15.679,0.7 8,AirTran,7.698,8,7.051,9.2 9,JetBlue,7.428,9,6.985,6.3 10,SkyWest,6.820,10,6.855,-0.5 "Source: Bureau of Transportation Statistics, T-100 Market",,,,, * System equals domestic plus international,,,,, ** US Airways Jan-Apr 2008 number is the report of the merged US Airways and America West. The Jan-Apr 2007 numbers were reported separately by US Airways and America West. America West reported 6.846 million system passengers in Jan-Apr 2007.,,,,, Note: Percent changes based on numbers prior to rounding.,,,,, ,,,,,