Table 7. System* Airline Unit Revenue (Cents Per Mile),,,,,,,
Low-Cost Carriers ,,,,,,,
Ranked by 4th Quarter 2006 Unit Revenue,,,,,,,
(Operating Revenue Per Available Seat Mile),,,,,,,
4Q 2006 Rank,Low-Cost Carriers,4th Quarter 2005 ,1st Quarter 2006 ,2nd Quarter 2006 ,3rd Quarter 2006 ,4th Quarter 2006 ,4th Quarter Operating Revenue $(Millions)
1,America West,11.5,12.3,13.5,12.6,12.6,906
2,Frontier,10.5,10.3,11.4,11.2,10.1,266
3,Southwest,9.1,9.1,10.7,9.8,9.5,"2,276"
4,AirTran,9.9,9.6,11.2,9.8,9.3,462
5,Spirit,8.7,8.8,11.1,9.7,9.1,132
6,JetBlue,7.0,7.5,8.5,8.3,8.7,634
7,ATA,8.5,8.9,9.9,9.7,8.6,166
,Seven-Carrier Total,9.3,9.5,10.9,10.1,9.8,"4,842"
"Source: Bureau of Transportation Statistics; Form 41, Schedule P1.2.  T100; T2 Data",,,,,,,
* System = domestic + international,,,,,,,