International Available Seat Miles as  a Percent of Total System Available Seat Miles
1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011
American 29.5% 29.7% 29.7% 31.3% 31.4% 32.1% 32.1% 27.5% 29.5% 32.3% 34.6% 36.0% 36.1% 37.7% 38.7% 39.2% 40.6%
Continental 15.9% 18.3% 24.2% 29.0% 32.9% 34.7% 33.7% 34.8% 36.0% 38.3% 41.1% 43.2% 44.0% 46.6% 47.5% 48.6% 49.5%
Delta 23.2% 21.1% 20.5% 22.4% 22.2% 22.8% 24.1% 24.0% 22.7% 24.2% 26.4% 34.0% 38.6% 43.7% 45.0% 45.2% 46.5%
Northwest 39.2% 39.8% 40.4% 40.6% 39.3% 40.3% 40.2% 39.8% 38.6% 38.5% 39.9% 40.6% 42.4% 46.5% 45.4%
United 36.7% 36.8% 37.7% 36.8% 35.0% 37.3% 38.8% 36.6% 35.0% 35.7% 40.2% 39.3% 40.8% 43.0% 43.5% 44.6% 47.6%
US Airways 5.1% 7.2% 8.9% 10.3% 11.6% 13.2% 16.3% 19.0% 23.4% 25.1% 25.0% 28.1% 26.5% 21.7% 24.7% 26.4% 26.8%
America West 1.3% 3.2% 3.2% 2.8% 2.0% 1.9% 2.1% 2.9% 3.4% 3.3% 3.8% 3.3% 3.9%        
 --sub Network 27.2% 27.4% 28.2% 29.2% 29.1% 30.2% 30.8% 29.6% 29.8% 31.2% 33.6% 35.9% 37.7% 40.5% 41.4% 42.1% 43.6%
Southwest 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0%
jetBlue 0.0% 0.0% 0.0% 0.0% 1.2% 0.3% 0.0% 0.0% 2.1% 9.7% 14.9% 15.3%
AirTran 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.4% 0.4% 0.1% 0.0% 0.9% 4.4% 5.2%
Frontier 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 6.9% 7.8% 10.0% 8.2% 6.2% 6.6% 3.8%
Virgin America                         0.0% 0.0% 0.0% 0.0% 3.5%
 -- sub LCC 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.2% 0.6% 0.6% 0.8% 1.0% 2.3% 4.0% 4.1%
Alaska 6.7% 7.5% 7.5% 8.0% 8.4% 9.3% 9.1% 9.8% 9.8% 9.5% 9.4% 10.3% 11.1% 9.9% 8.4% 7.6% 8.4%
Hawaiian 5.7% 5.5% 5.0% 4.9% 5.9% 10.8% 8.7% 3.4% 1.5% 5.9% 8.3% 6.8% 5.3% 9.4% 10.9% 11.5% 25.1%
Allegiant           0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0%
 -- sub Other 6.4% 7.0% 6.9% 7.2% 7.7% 9.7% 9.0% 8.1% 7.5% 8.3% 8.6% 8.7% 8.6% 8.7% 7.9% 7.5% 11.7%
Total All Sectors 25.2% 25.3% 25.8% 26.6% 26.3% 27.1% 27.2% 25.6% 25.2% 26.2% 27.7% 28.9% 29.6% 31.4% 32.0% 32.6% 33.6%
Source:  US DOT Form 41 via BTS, schedule T2.