Table 7. System* Airline Unit Revenue (Cents Per Mile),,,,,,,
Low-Cost Carriers ,,,,,,,
Ranked by 1st Quarter 2007 Unit Revenue ,,,,,,,
(Operating Revenue Per Available Seat Mile) ,,,,,,,
1Q 2007 Rank,Low-Cost Carriers,1st Quarter 2006 ,2nd Quarter 2006 ,3rd Quarter 2006 ,4th Quarter 2006 ,1st Quarter 2007 ,1st Quarter Operating Revenue $(Millions)
1,America West,12.3,13.5,12.6,12.6,12.7,899
2,AirTran,9.6,11.2,9.8,9.3,9.7,505
3,Frontier,10.3,11.4,11.2,10.1,9.5,282
4,Southwest,9.1,10.7,9.8,9.5,9.3,2198
5,Spirit,8.8,11.1,9.7,9.1,9.0,173
6,ATA,8.9,9.9,9.7,8.6,8.5,160
7,JetBlue,7.5,8.5,8.3,8.7,8.1,608
,Seven-Carrier Total,9.5,10.9,10.1,9.8,9.8,4825
" Source: Bureau of Transportation Statistics; Form 41, Schedule P1.2.  T100; T2 Data",,,,,,,
* System = domestic + international ,,,,,,,