Table 9: System Operating Expenses (excluding Regional Jet Contract) per Aircraft,,,,,,,,
Low-Cost Carriers,,,,,,,,
Ranked by 2006 Performance,,,,,,,,
(Cost in Millions of Dollars Excluding Regional Jet Contract Expenses per Aircraft) ,,,,,,,,
2006 Rank ,Low-Cost ,2001,2002,2003,2004,2005,2006,"Change
2001-2006"
1,ATA,25.282,22.253,21.628,31.294,36.405,35.591,10.309
2,America West,17.094,15.213,15.543,16.745,19.961,22.438,5.344
3,Frontier,17.763,15.239,15.689,17.629,19.087,21.974,4.211
4,JetBlue,17.806,19.615,19.249,19.168,21.182,20.112,2.306
5,Spirit,13.046,14.689,15.269,17.281,16.853,18.975,5.929
6,Southwest,13.856,13.948,14.317,14.759,15.626,17.614,3.758
7,AirTran,11.506,11.493,12.054,12.931,15.622,16.180,4.674
,7-Carrier Average,15.404,14.967,15.332,16.765,18.049,19.144,3.740
"Source: Bureau of Transportation Statistics, Form 41 Airline Financial Data ",,,,,,,,