National Airspace System: Summary of Flight Delay Trends for 34 Airports in the Continental United States (GAO-10-543SP, May 26, 2010), an E-supplement to GAO-10-542

Washington Dulles International (IAD) Arrival Data

Year Annual arrivals
(in thousands)		 Percent change
in annual arrivals		 Percent of annual
arrivals that were
delayed		 Percentage point
change in annual
arrivals that were
delayed		 Average delay per
delayed arrival
(in minutes)
2000 69 -- 26.3 -- 52.5
2001 59 -14.6 19.2 -7.1 48.8
2002 52 -13.1 14.7 -4.5 44.2
2003 57 11.0 15.9 1.2 45.4
2004 64 11.7 20.4 4.5 48.6
2005 70 10.4 21.0 0.6 52.9
2006 105 49.5 22.8 1.8 61.4
2007 96 -8.5 25.2 2.4 61.0
2008 82 -14.6 24.4 -0.7 62.0
2009 74 -10.3 18.3 -6.1 58.1

Source: GAO analysis of FAA's ASPM data
Note: The percent change in arrivals and the change in percentage points of arrivals that were delayed may not compute due to rounding

Bar and line plot of Year

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