| System Total Expense per Equivalent Seat Mile (CESM ex fuel and Transport Related) | ||||||||||||||||||
| 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 | 9.79 | 9.05 | 9.27 | 9.47 | 9.40 | 9.99 | 11.39 | 10.49 | 9.71 | 8.61 | 8.48 | 8.44 | 8.67 | 9.78 | 9.80 | 9.72 | 10.34 | |
| Continental | 7.14 | 7.82 | 8.02 | 8.53 | 8.91 | 9.06 | 9.31 | 9.43 | 8.83 | 9.05 | 8.67 | 8.66 | 8.84 | 8.99 | 9.35 | 9.87 | 9.58 | |
| Delta | 7.20 | 7.62 | 7.27 | 7.51 | 7.57 | 7.70 | 8.19 | 8.24 | 8.86 | 8.33 | 7.45 | 7.67 | 7.69 | 7.70 | 8.33 | 8.36 | 8.50 | |
| Northwest | 7.87 | 7.66 | 7.58 | 8.44 | 7.85 | 8.04 | 8.63 | 8.82 | 8.42 | 8.44 | 8.66 | 7.66 | 7.66 | 8.28 | 8.75 | - | - | |
| United | 8.47 | 8.67 | 8.95 | 8.90 | 8.95 | 9.61 | 10.97 | 10.55 | 9.34 | 8.68 | 8.35 | 8.42 | 8.70 | 10.11 | 8.94 | 9.71 | 10.56 | |
| US Airways | 8.26 | 8.96 | 9.14 | 9.01 | 9.38 | 8.85 | 9.21 | 8.78 | 8.65 | 7.83 | 6.49 | 11.10 | 9.82 | 9.14 | 7.93 | 7.82 | 7.86 | |
| America West | 5.69 | 6.10 | 5.87 | 6.22 | 6.38 | 6.84 | 7.69 | 6.90 | 6.53 | 5.93 | 6.53 | - | - | - | - | - | - | |
| --sub Network | 8.19 | 8.27 | 8.31 | 8.55 | 8.57 | 8.87 | 9.74 | 9.46 | 9.01 | 8.45 | 8.06 | 8.06 | 8.20 | 9.07 | 8.92 | 9.05 | 9.36 | |
| Southwest | 4.10 | 4.31 | 4.32 | 4.50 | 4.60 | 4.58 | 4.54 | 4.59 | 4.69 | 4.70 | 4.69 | 4.90 | 4.96 | 5.14 | 5.51 | 5.81 | 6.05 | |
| jetBlue | - | - | - | - | - | 7.00 | 5.81 | 6.02 | 5.57 | 5.36 | 5.45 | 5.41 | 5.46 | 6.05 | 6.34 | 6.51 | 6.54 | |
| AirTran | - | - | 7.52 | 5.51 | 4.90 | 5.14 | 5.36 | 4.94 | 4.98 | 5.13 | 5.24 | 5.04 | 5.00 | 5.08 | 5.33 | 5.63 | 5.94 | |
| Frontier | 6.56 | 7.58 | 7.69 | 6.80 | 6.54 | 7.28 | 7.55 | 7.40 | 6.55 | 6.48 | 6.23 | 6.17 | 5.84 | 5.86 | 5.81 | 6.40 | 7.05 | |
| Virgin America | - | - | - | - | - | - | - | - | - | - | - | - | - | 13.39 | 7.16 | 7.46 | 7.87 | |
| -- sub LCC | 4.15 | 4.39 | 4.55 | 4.72 | 4.74 | 4.80 | 4.82 | 4.85 | 4.94 | 4.98 | 5.00 | 5.12 | 5.16 | 5.59 | 5.74 | 6.04 | 6.26 | |
| Alaska | 6.24 | 6.39 | 6.69 | 6.67 | 6.93 | 7.84 | 8.04 | 8.03 | 7.79 | 7.55 | 7.51 | 8.12 | 8.16 | 7.53 | 8.17 | 7.72 | 7.55 | |
| Hawaiian | 3.89 | 3.87 | 4.00 | 4.04 | 7.84 | 4.66 | 4.79 | 6.53 | 5.87 | 6.03 | 6.07 | 6.05 | 5.87 | 5.47 | 6.06 | 6.44 | 7.19 | |
| Allegiant | - | - | - | - | - | - | - | - | - | 8.01 | 7.75 | 4.02 | 3.93 | 4.40 | 4.40 | 4.50 | 4.99 | |
| -- sub Other | 5.76 | 5.81 | 6.04 | 6.07 | 7.15 | 6.90 | 7.15 | 7.77 | 7.21 | 7.30 | 7.27 | 7.39 | 7.25 | 6.75 | 7.26 | 7.07 | 7.23 | |
| 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 P6 & T2. | ||||||||||||||||||