TABLE 4-9 - Domestic Enplanements at U.S. Airports: 2004-2010

TABLE 4-9 - Domestic Enplanements at U.S. Airports: 2004-2010

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Thousands of passengers

  Total enplanements Large hubs Medium hubs Small hubs Nonhubs
2004 668,648 467,082 126,898 52,787 21,881
2005 701,088 483,869 140,896 53,115 23,208
2006 703,517 487,176 140,614 53,047 22,680
2007 726,373 501,736 144,888 57,247 22,502
2008 697,100 478,700 142,096 54,303 22,001
2009 662,966 461,020 126,650 54,910 20,386
2010 328,239 229,309 60,375 28,330 10,225

NOTES: 2010 data are through September. Data are for all scheduled and nonscheduled (chartered) service by large certificated U.S. air carriers at all domestic airports served within the 50 states, the District of Columbia, and other U.S. areas designated by the Federal Aviation Administration (FAA). Not all scheduled service is actually performed.

Since 2007 air traffic hubs are designated as geographical areas based on the percentage of total passengers enplaned in the area. Under this designation, a hub may have more than one airport in it. (This definition of hub should not be confused with the definition used by the airlines in describing their "hub-and-spoke" route structures). Individual communities fall into four hub classifications as determined by each communitys percentage of total enplaned revenue passengers in all services and all operations of U.S. certificated route carriers within the 50 states, the District of Columbia, and other U.S. areas. For 2004-2006, hub designation is based on passenger boardings at individual airports as designated by the FAA. Classifications are based on the percentage of total enplaned revenue passengers for each year according to the following: Large = 1 percent or more, Medium = 0.25 to 0.9999 percent, Small = 0.05 to 0.249 percent, Nonhub = less than 0.05.

SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, Office of Airline Information, Airport Activity Statistics Database (Form 41 Schedule T-3), special tabulation, October 2010.