"Table 3. Top 10 Airlines, ranked by January 2004 Domestic Enplanements ",,,,, Rank,Airline Name,January 2003,December 2003,January 2004,Jan. 2003 Rank 1,Delta Airlines,"6,261,054","6,503,916","5,814,214",1 2,American Airlines,"5,660,534","5,897,565","5,475,307",2 3,Southwest Airlines,"5,488,639","6,119,147","5,362,666",3 4,United Airlines,"4,373,000","4,742,188","4,155,776",4 5,Northwest Airlines,"3,101,026","3,723,150","3,090,278",5 6,US Airways,"2,647,486","3,128,235","2,649,707",6 7,Continental Airlines,"2,284,065","2,672,575","2,275,091",7 8,America West Airlines,"1,404,771","1,569,945","1,466,865",8 9,Alaska Airlines,"878,763","1,133,722","945,325",10 10,American Eagle Airlines,"973,514","1,059,268","936,147",9 Source: T-100 Domestic Market,,,,,