System Passenger Revenue per Equivalent Seat Mile (PRESM)
STAGE LENGTH ADJUSTED
Cents per Equivalent Seat Mile
1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011
American              9.91            10.31            10.66            10.83            10.23            11.34            10.21              9.00              9.31              9.45            10.21            11.05            11.39            11.81            10.48            11.54            12.26
Continental              7.91              8.95              9.54              9.64              9.57            10.69              9.79              9.57              9.67              9.86            10.58            11.37            12.00            12.78            11.02            12.56            13.77
Delta              8.32              8.50              8.71              8.82              8.71              9.27              8.08              7.84              8.28              8.11              8.39              9.65            10.63            11.44              9.78            10.95            11.83
Northwest              8.89              9.11              8.95              8.17              8.50              9.09              8.22              8.09              8.16              8.69              9.15            10.02            10.32            10.97              9.15                   -                     -  
United              9.17              9.70              9.87              9.67              9.59            10.47              9.08              8.71              8.69              9.17            10.08            10.87            11.72            12.15            10.40            12.74            13.98
US Airways              8.75              9.68              9.93            10.00              9.40              9.37              8.23              7.80              8.32              8.12              8.08            14.55            13.07              9.95              8.61              9.63            10.60
America West              6.72              6.90              6.98              7.25              7.52              7.77              7.04              7.05              7.57              7.32              8.10                   -                     -                     -                     -                     -                     -  
 --sub Network           8.90           9.35           9.55           9.48           9.31         10.04           8.95           8.49           8.75           8.90           9.46         10.45         11.03         11.59           9.99         11.44         12.41
Southwest              5.18              5.50              5.64              5.80              6.01              6.53              5.93              5.66              5.82              5.92              6.29              6.97              6.97              7.46              7.34              8.45              9.13
jetBlue                   -                     -                     -                     -                     -                6.99              7.41              8.16              7.94              7.30              7.73              8.12              8.33              9.65              8.97              9.57            10.56
AirTran                   -                     -                6.53              5.82              6.28              7.72              7.39              6.44              6.77              6.49              7.10              7.38              7.70              8.13              7.22              7.90              8.57
Frontier              5.46              6.73              6.37              7.76              8.09            10.13              8.70              8.04              7.66              7.49              8.25              8.28              8.13              8.96              7.76              9.01            11.09
Virgin America                   -                     -                     -                     -                     -                     -                     -                     -                     -                     -                     -                     -                     -                8.13              8.18              9.95            11.21
 -- sub LCC           5.18           5.52           5.75           5.94           6.16           6.82           6.26           6.01           6.26           6.29           6.76           7.34           7.44           8.15           7.71           8.72           9.51
Alaska              6.43              6.80              7.38              7.42              7.74              8.37              7.98              7.77              7.96              8.13              8.74              9.38              9.43              9.86              9.57            10.31            11.09
Hawaiian              3.92              4.03              4.02              4.11              6.86              4.40              4.50              5.95              6.72              7.48              7.61              7.59              7.58              8.62              7.57              8.30              9.52
Allegiant                   -                     -                     -                     -                     -                     -                     -                     -                     -                3.87              5.67              6.21              6.44              6.87              6.25              6.75              7.58
 -- sub Other           5.91           6.16           6.54           6.62           7.55           7.15           7.00           7.41           7.58           7.96           8.46           8.83           8.79           9.40           8.81           9.46         10.32
Base Length of Haul                839                869                887                910                931                935                955                966            1,005            1,039            1,061            1,087            1,093            1,115            1,126            1,154            1,170
Note:   Stage Length Adjustment formula:  ((observed length of haul/base length of haul [15 carrier average])^.5) times respective carrier unit cost.
Data Source:  US DOT Form 41 via BTS, Schedules P12 & T2.