Bureau of Transportation Statistics (BTS)
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Table 1
Summary of Airline On-Time Performance Year-to-date through October 2008

Year-to-date numbers for all years

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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 4,458,656 822,735 642,444 72,945 8,524 79.72 18.45 14.41 1.64 0.19
1996 4,460,898 996,137 789,390 106,659 11,628 75.02 22.33 17.70 2.39 0.26
1997 4,528,214 887,251 693,568 82,821 10,040 78.36 19.59 15.32 1.83 0.22
1998 4,493,094 893,727 722,083 128,190 10,972 77.01 19.89 16.07 2.85 0.24
1999 4,602,990 982,209 794,438 138,519 11,907 75.39 21.34 17.26 3.01 0.26
2000 4,734,758 1,091,662 903,616 147,978 11,960 73.57 23.06 19.08 3.13 0.25
2001 5,120,525 965,678 830,370 222,368 11,651 76.57 18.86 16.22 4.34 0.23
2002 4,429,210 726,771 599,518 54,112 6,942 82.21 16.41 13.54 1.22 0.16
2003 5,404,874 840,959 664,771 82,430 9,570 82.74 15.56 12.30 1.53 0.18
2004 5,937,929 1,153,654 952,538 103,316 11,364 78.64 19.43 16.04 1.74 0.19
2005 6,002,115 1,205,432 1,051,499 117,393 11,994 77.76 20.08 17.52 1.96 0.20
2006 5,950,967 1,331,419 1,173,420 94,282 13,724 75.81 22.37 19.72 1.58 0.23
2007 6,233,927 1,493,589 1,304,173 132,976 14,783 73.67 23.96 20.92 2.13 0.24
2008 5,939,618 1,274,064 1,110,054 115,182 13,974 76.38 21.45 18.69 1.94 0.24

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

NOTE: The number of reporting carriers has varied as follows:
1995: 10
1996: 10
1997: 10
1998: 10
1999: 10
2000: 11
2001: 12
2001: 10
2003: 18
2004: 19
2005: 20
2006: 20
2007: 20
2008: 19 (20 through February after which Aloha Airlines ceased reporting)