Table 9.  System* Airline Unit Costs (Cents per Mile),,,,,,,
Passenger Airlines by Group ,,,,,,,
Ranked by 3rd Quarter 2007 Unit Costs ,,,,,,,
(Operating Expenses per Available Seat Mile in cents),,,,,,,
3Q 2007 Rank,Carrier Group,3rd Quarter 2006 ,4th Quarter 2006 ,1st Quarter 2007 ,2nd Quarter 2007 ,3rd Quarter 2007 ,3rd Quarter Operating Expenses $(Millions)
1,Regional ,13.7,13.5,14.0,14.1,14.0,"2,387"
2,Network ,13.3,13.2,13.1,13.4,13.6,"24,701"
3,Low-Cost**,9.8,9.5,9.4,9.6,N/A,N/A
,21-Carrier Total**,12.6,12.5,12.4,12.6,N/A,N/A
"Source: Bureau of Transportation Statistics; Form 41, Schedule P1.2.  T100; T2 Data",,,,,,,
* System = domestic + international ,,,,,,,
** No calculations were made for 3rd Quarter 2007 because ATA Airlines failed to file its quarterly financial report with BTS.,,,,,,,