Figure 9 Percentage of Scheduled Flights Canceled by Major U.S. Carriers: September 1987–February 2002,,,,,,,,
Date,Canceled,,,,,,,
Sep-87,0.90,,,,,,,
Oct-87,0.67,,,,,,,
Nov-87,1.23,,,,,,,
Dec-87,2.61,,,,,,,
Jan-88,3.61,,,,,,,
Feb-88,1.77,,,,,,,
Mar-88,0.70,,,,,,,
Apr-88,0.56,,,,,,,
May-88,0.60,,,,,,,
Jun-88,0.28,,,,,,,
Jul-88,0.62,,,,,,,
Aug-88,0.55,,,,,,,
Sep-88,0.48,,,,,,,
Oct-88,0.52,,,,,,,
Nov-88,0.84
Dec-88,1.06
Jan-89,1.60
Feb-89,2.05
Mar-89,5.25
Apr-89,0.51
May-89,0.61
Jun-89,0.92
Jul-89,0.71
Aug-89,0.63
Sep-89,1.25
Oct-89,0.96
Nov-89,0.84
Dec-89,2.16
Jan-90,1.70
Feb-90,1.95
Mar-90,1.31
Apr-90,0.46
May-90,0.59
Jun-90,0.61
Jul-90,0.71
Aug-90,0.67
Sep-90,0.78
Oct-90,0.65
Nov-90,0.47
Dec-90,2.16
Jan-91,2.21
Feb-91,1.59
Mar-91,0.93
Apr-91,0.68
May-91,0.61
Jun-91,0.41
Jul-91,0.49
Aug-91,0.50
Sep-91,0.52
Oct-91,0.81
Nov-91,0.92
Dec-91,0.71
Jan-92,1.48
Feb-92,0.80
Mar-92,1.28
Apr-92,0.52
May-92,0.46
Jun-92,0.42
Jul-92,0.60
Aug-92,0.98
Sep-92,0.84
Oct-92,2.22
Nov-92,0.89
Dec-92,1.92
Jan-93,1.79
Feb-93,2.03
Mar-93,3.88
Apr-93,0.82
May-93,0.42
Jun-93,0.72
Jul-93,0.46
Aug-93,0.54
Sep-93,0.68
Oct-93,0.61
Nov-93,1.25
Dec-93,1.04
Jan-94,4.86
Feb-94,4.37
Mar-94,1.20
Apr-94,0.59
May-94,0.38
Jun-94,0.63
Jul-94,0.86
Aug-94,0.54
Sep-94,0.41
Oct-94,0.49
Nov-94,0.62
Dec-94,0.97
Jan-95,3.07
Feb-95,2.38
Mar-95,1.59
Apr-95,1.32
May-95,1.43
Jun-95,1.32
Jul-95,1.29
Aug-95,1.66
Sep-95,1.16
Oct-95,1.09
Nov-95,1.47
Dec-95,2.87
Jan-96,6.62
Feb-96,3.47
Mar-96,1.98
Apr-96,1.27
May-96,1.57
Jun-96,1.81
Jul-96,2.04
Aug-96,1.72
Sep-96,1.76
Oct-96,1.74
Nov-96,2.19
Dec-96,2.70
Jan-97,3.95
Feb-97,2.07
Mar-97,1.81
Apr-97,1.58
May-97,1.13
Jun-97,1.51
Jul-97,1.69
Aug-97,1.48
Sep-97,1.43
Oct-97,1.64
Nov-97,1.55
Dec-97,1.82
Jan-98,3.07
Feb-98,2.54
Mar-98,2.14
Apr-98,1.57
May-98,2.09
Jun-98,2.88
Jul-98,2.02
Aug-98,3.16
Sep-98,7.41
Oct-98,1.71
Nov-98,1.47
Dec-98,2.18
Jan-99,5.85
Feb-99,3.48
Mar-99,2.66
Apr-99,1.98
May-99,2.57
Jun-99,2.75
Jul-99,3.14
Aug-99,2.44
Sep-99,3.31
Oct-99,2.04
Nov-99,1.68
Dec-99,1.74
Jan-00,5.21
Feb-00,3.42
Mar-00,2.12
Apr-00,2.51
May-00,3.45
Jun-00,3.95
Jul-00,3.21
Aug-00,3.05
Sep-00,2.24
Oct-00,2.13
Nov-00,2.35
Dec-00,6.00
Jan-01,3.78
Feb-01,3.66
Mar-01,3.38
Apr-01,2.23
May-01,1.78
Jun-01,2.98
Jul-01,2.10
Aug-01,2.46
Sep-01,20.34
Oct-01,1.54
Nov-01,1.08
Dec-01,1.01
Jan-02,1.67
Feb-02,1.08
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