| Average Seat Capacity of Total Operating Fleet | ||||||||||||||||||
| All Aircraft | ||||||||||||||||||
| 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | ||
| American | 169 | 167 | 165 | 164 | 164 | 159 | 156 | 155 | 159 | 166 | 172 | 175 | 177 | 177 | 176 | 175 | 176 | |
| Continental | 144 | 140 | 144 | 148 | 155 | 157 | 157 | 159 | 162 | 166 | 166 | 167 | 167 | 171 | 176 | 179 | 179 | |
| Delta | 180 | 181 | 180 | 179 | 178 | 178 | 176 | 178 | 180 | 180 | 183 | 187 | 187 | 190 | 188 | 191 | 192 | |
| Northwest | 183 | 186 | 188 | 188 | 188 | 189 | 184 | 179 | 176 | 176 | 178 | 179 | 184 | 191 | 192 | - | - | |
| United | 194 | 194 | 195 | 195 | 192 | 190 | 188 | 187 | 181 | 183 | 186 | 186 | 188 | 190 | 195 | 197 | 198 | |
| US Airways | 131 | 133 | 134 | 134 | 135 | 138 | 144 | 153 | 154 | 153 | 150 | 160 | 162 | 157 | 158 | 162 | 162 | |
| America West | 144 | 142 | 142 | 144 | 143 | 143 | 141 | 141 | 140 | 141 | 143 | 142 | 143 | - | - | - | - | |
| --sub Network | 169 | 169 | 170 | 170 | 170 | 169 | 168 | 168 | 168 | 170 | 172 | 175 | 177 | 179 | 181 | 182 | 183 | |
| Southwest | 132 | 133 | 133 | 133 | 134 | 135 | 135 | 135 | 135 | 136 | 136 | 136 | 136 | 136 | 136 | 136 | 136 | |
| jetBlue | - | - | - | - | - | 164 | 164 | 162 | 161 | 157 | 157 | 152 | 145 | 141 | 140 | 140 | 140 | |
| AirTran | 126 | 127 | 126 | 111 | 112 | 109 | 110 | 114 | 116 | 118 | 121 | 123 | 125 | 126 | 125 | 126 | 126 | |
| Frontier | 110 | 118 | 123 | 126 | 129 | 132 | 134 | 131 | 132 | 126 | 123 | 123 | 129 | 132 | 134 | 137 | 141 | |
| Virgin America | - | - | - | - | - | - | - | - | - | - | - | - | 148 | 143 | 140 | 139 | 140 | |
| -- sub LCC | 132 | 132 | 132 | 130 | 131 | 132 | 133 | 134 | 135 | 135 | 136 | 136 | 135 | 136 | 135 | 135 | 136 | |
| Alaska | 132 | 132 | 133 | 133 | 133 | 131 | 131 | 132 | 134 | 135 | 138 | 140 | 144 | 146 | 148 | 149 | 150 | |
| Hawaiian | 245 | 249 | 254 | 256 | 93 | 254 | 257 | 252 | 238 | 237 | 239 | 237 | 239 | 237 | 233 | 238 | 245 | |
| Allegiant | - | - | - | - | - | 102 | 106 | 112 | 150 | 155 | 148 | 148 | 148 | 148 | 149 | 149 | 150 | |
| -- sub Other | 157 | 159 | 159 | 160 | 124 | 161 | 152 | 153 | 155 | 154 | 156 | 157 | 160 | 162 | 164 | 164 | 167 | |
| Total All Sectors | 166 | 166 | 166 | 166 | 164 | 165 | 163 | 163 | 163 | 164 | 165 | 166 | 167 | 168 | 168 | 169 | 170 | |
| Source: US DOT Form 41 via BTS, schedule T2. | ||||||||||||||||||