"Table 3. Top 10 Airlines, ranked by January-March 2005 Domestic Enplanements",,,,, Jan-Mar 2005 Rank,Carrier,Jan-Mar 2005 Passengers,Jan-Mar 2004 Rank,Jan-Mar 2004 Passengers, ,,,,, 1,Southwest Airlines,"19,795,083",2,"18,201,770", 2,Delta Air Lines,"19,683,967",1,"18,709,116", 3,American Airlines,"18,098,373",3,"17,396,249", 4,United Airlines,"12,902,571",4,"13,382,989", 5,Northwest Airlines,"11,107,201",5,"10,318,991", 6,US Airways,"9,508,318",6,"8,782,342", 7,Continental Airlines,"7,728,291",7,"7,339,272", 8,America West Airlines,"4,846,303",8,"4,646,516", 9,American Eagle Airlines,"3,689,073",9,"3,109,240", 10,SkyWest Airlines,"3,598,158",12,"2,830,617", "Source: Bureau of Transportation Statistics, T-100 Domestic Market",,,,,