Downsizing: American's fleet has been reduced from 800 jets to 620. United’s fleet of 409 jets is 30% fewer than in 1999.
Southwest served 40.6M passengers between January and May, a 5.3% decline from 2008.
US Airways served 21.3M passengers from January to May 2009 -- a 7.5% decline from 2008.
American Airlines traffic dropped 10.6% in the first 5 months of 2009.
United Airlines traffic fell 14.3% in the first 5 months of 2009.
Continental traffic fell 11.5% in the first 5 months of 2009.
Northwest Airlines traffic fell 20.2% in the first 5 months of 2009.