Bureau of Transportation Statistics (BTS)
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Table 1
Summary of Airline On-Time Performance Year-to-date through July 2005

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Year Operations Late Arrivals Late Departures Cancelled Diverted Percent On-Time Arrivals Percent Late Arrivals Percent Late Departures Percent Cancelled Percent Diverted
1995 3,123,442 608,040 473,602 55,448 6,385 78.55 19.47 15.16 1.78 0.20
1996 3,103,675 708,384 571,725 83,044 8,412 74.23 22.82 18.42 2.68 0.27
1997 3,157,928 659,177 517,896 62,007 7,639 76.92 20.87 16.40 1.96 0.24
1998 3,125,329 667,769 537,369 72,756 8,259 76.04 21.37 17.19 2.33 0.26
1999 3,184,896 716,448 580,620 101,814 9,397 74.01 22.50 18.23 3.20 0.30
2000 3,294,534 765,408 634,792 112,253 8,691 73.10 23.23 19.27 3.41 0.26
2001 3,641,680 732,976 619,944 102,876 7,934 76.83 20.13 17.02 2.82 0.22
2002 3,085,860 538,633 444,501 40,538 5,073 81.07 17.45 14.40 1.31 0.16
2003 3,767,806 597,853 476,069 60,539 6,562 82.35 15.87 12.64 1.61 0.17
2004 4,119,660 846,282 692,965 68,489 8,231 77.60 20.54 16.82 1.66 0.20
2005 4,204,246 876,862 762,283 81,934 8,645 76.99 20.86 18.13 1.95 0.21

NOTE: The number of reporting carriers has varied as follows:
1995: 10
1996: 10
1997: 10
1998: 10
1999: 10
2000: 11
2001: 12
2002: 10
2003: 18
2004: 19
2005: 20

SOURCE: Bureau of Transportation Statistics, Airline On-Time Data