Table 15. System* Passenger Revenue Yield (Cents per Mile),,,,,,,
Low-Cost Carriers,,,,,,,
Ranked by 4th Quarter 2006 Revenue Yield ,,,,,,,
(Passenger Revenue per Revenue Passenger Mile in cents),,,,,,,
4Q 2006 Rank,Low-Cost Carriers,4th Quarter 2005 ,1st Quarter 2006 ,2nd Quarter 2006 ,3rd Quarter 2006 ,4th Quarter 2006 ,4th Quarter Passenger Revenue $(Millions)
1,AirTran,13.3,13.1,13.8,12.9,12.8,440
2,Southwest,12.3,12.4,13.0,12.4,12.7,"2,142"
3,ATA,12.4,13.4,13.0,13.1,12.3,161
4,America West,10.8,11.5,12.0,11.6,11.7,657
5,Frontier,11.6,11.3,11.3,11.8,11.7,226
6,Spirit,10.9,11.0,12.2,10.9,11.1,123
7,JetBlue,8.2,8.4,9.8,9.7,10.2,593
,Seven-Carrier Total,11.4,11.6,12.3,11.9,12.1,"4,342"
Source: Bureau of Transportation Statistics; Form 41; Schedule P1.2.  T100; T2 Data,,,,,,,
* System = domestic + international,,,,,,,