| System Labor Expense per Equivalent Seat Mile (ex Management and Other) | ||||||||||||||||||
| 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 | 3.60 | 3.36 | 3.63 | 3.82 | 3.78 | 4.15 | 4.38 | 4.62 | 4.45 | 3.87 | 3.68 | 3.67 | 3.64 | 3.79 | 4.16 | 4.12 | 4.22 | |
| Continental | 2.31 | 2.49 | 2.77 | 3.18 | 3.06 | 3.33 | 3.45 | 3.63 | 3.80 | 3.54 | 3.21 | 3.17 | 3.27 | 3.10 | 3.45 | 3.61 | 3.72 | |
| Delta | 2.82 | 2.96 | 2.79 | 2.81 | 2.93 | 2.82 | 3.23 | 3.56 | 4.04 | 3.78 | 2.93 | 2.73 | 2.50 | 2.67 | 3.09 | 3.09 | 3.17 | |
| Northwest | 3.05 | 2.88 | 2.82 | 3.24 | 3.06 | 3.13 | 3.59 | 3.68 | 3.77 | 3.57 | 3.55 | 2.69 | 2.36 | 2.47 | 3.13 | - | - | |
| United | 3.26 | 3.40 | 3.60 | 3.67 | 3.74 | 3.98 | 4.56 | 4.99 | 4.07 | 3.52 | 2.97 | 2.91 | 2.98 | 3.20 | 3.20 | 3.30 | 3.42 | |
| US Airways | 3.52 | 3.85 | 3.90 | 3.84 | 4.00 | 3.89 | 4.13 | 4.05 | 3.74 | 3.24 | 2.09 | 3.24 | 3.27 | 2.48 | 2.50 | 2.55 | 2.64 | |
| America West | 1.41 | 1.36 | 1.39 | 1.47 | 1.57 | 1.75 | 1.92 | 1.96 | 2.03 | 1.94 | 1.97 | - | - | - | - | - | - | |
| --sub Network | 3.11 | 3.13 | 3.21 | 3.36 | 3.37 | 3.51 | 3.89 | 4.11 | 3.98 | 3.58 | 3.12 | 2.96 | 2.93 | 3.04 | 3.34 | 3.37 | 3.48 | |
| Southwest | 1.61 | 1.66 | 1.73 | 1.84 | 1.89 | 1.98 | 2.01 | 2.06 | 2.18 | 2.25 | 2.29 | 2.38 | 2.35 | 2.35 | 2.55 | 2.70 | 2.79 | |
| jetBlue | - | - | - | - | - | 1.61 | 1.70 | 2.03 | 2.07 | 1.88 | 1.84 | 1.83 | 1.85 | 1.95 | 2.11 | 2.23 | 2.20 | |
| AirTran | - | - | 0.86 | 1.38 | 1.34 | 1.56 | 1.65 | 1.65 | 1.61 | 1.63 | 1.56 | 1.50 | 1.49 | 1.54 | 1.59 | 1.66 | 1.81 | |
| Frontier | 0.85 | 0.88 | 0.96 | 1.07 | 1.26 | 1.56 | 1.66 | 1.88 | 1.79 | 1.94 | 2.06 | 1.88 | 1.82 | 1.77 | 1.73 | 1.71 | 1.86 | |
| Virgin America | - | - | - | - | - | - | - | - | - | - | - | - | - | 1.29 | 1.43 | 1.59 | 1.61 | |
| -- sub LCC | 1.60 | 1.64 | 1.70 | 1.80 | 1.83 | 1.93 | 1.96 | 2.01 | 2.11 | 2.14 | 2.15 | 2.17 | 2.14 | 2.17 | 2.29 | 2.41 | 2.47 | |
| Alaska | 2.15 | 2.23 | 2.36 | 2.48 | 2.55 | 2.82 | 3.01 | 3.08 | 3.20 | 3.15 | 2.77 | 2.69 | 2.62 | 2.63 | 3.11 | 2.75 | 2.72 | |
| Hawaiian | 1.27 | 1.17 | 1.23 | 1.22 | 2.12 | 1.32 | 1.57 | 2.00 | 2.04 | 2.11 | 2.02 | 1.88 | 1.68 | 1.69 | 1.80 | 1.92 | 1.90 | |
| Allegiant | - | - | - | - | - | - | - | - | - | 1.37 | 1.39 | 1.21 | 1.32 | 1.42 | 1.43 | 1.52 | 1.62 | |
| -- sub Other | 1.96 | 1.97 | 2.07 | 2.16 | 2.46 | 2.35 | 2.59 | 2.82 | 2.85 | 2.86 | 2.55 | 2.41 | 2.27 | 2.28 | 2.56 | 2.39 | 2.36 | |
| 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. | ||||||||||||||||||