Table 3: Quarterly Domestic Operating profit/loss margin (in percent),,,,,,, Low-Cost Carriers ,,,,,,, Ranked by 4th Quarter 2004 Margin ,,,,,,, (Operating Profit/Loss as Percent of Total Operating Revenue),,,,,,, 4Q 2004 Rank,Low-Cost Carriers,4th Quarter 2003 (%),1st Quarter 2004 (%),2nd Quarter 2004 (%),3rd Quarter 2004 (%),4th Quarter 2004 (%),4th Quarter Operating Profit/Loss $(Millions) 1,Southwest,7.3,3.1,11.5,11.4,7.2,119.1 2,JetBlue,13.4,11.3,14.1,7.1,3.7,12.2 3,AirTran,8.7,4.3,11.3,-4.9,1.3,3.6 4,America West,1.1,2.0,2.6,-4.7,-6.9,-40.9 5,Frontier,7.7,-8.0,-3.8,-0.3,-7.3,-15.3 6,Spirit,-3.0,2.0,-3.0,-13.3,-31.6,-36.0 7,ATA,-6.5,-14.8,-9.1,-12.5,-187.0,-436.7 ,Seven-Carrier Total,5.3,1.6,7.1,3.6,-11.5,-394.0 "Source: Bureau of Transportation Statistics; Form 41, Schedule P1.2 ",,,,,,,