Major U.S. Air Carriers On-time Performance

Major U.S. Air Carriers On-time Performance

Flights Not Arriving On-Time (monthly data)

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Date Flights not arriving on-time (percent) Flights arriving on-time (percent)
Sep-87 22.91  
Oct-87 19.61 80.39
Nov-87 23.84 76.16
Dec-87 33.49 66.51
Jan-88 30.65 69.35
Feb-88 25.24 74.76
Mar-88 21.10 78.90
Apr-88 17.33 82.67
May-88 18.03 81.97
Jun-88 15.62 84.38
Jul-88 18.46 81.54
Aug-88 17.04 82.96
Sep-88 14.37 85.63
Oct-88 16.60 83.40
Nov-88 22.34 77.66
Dec-88 23.86 76.14
Jan-89 23.32 76.68
Feb-89 27.58 72.42
Mar-89 30.38 69.62
Apr-89 16.61 83.39
May-89 20.54 79.46
Jun-89 27.82 72.18
Jul-89 23.13 76.87
Aug-89 25.37 74.63
Sep-89 20.39 79.61
Oct-89 20.54 79.46
Nov-89 21.98 78.02
Dec-89 29.80 70.20
Jan-90 22.40 77.60
Feb-90 26.78 73.22
Mar-90 23.46 76.54
Apr-90 17.79 82.21
May-90 19.16 80.84
Jun-90 19.94 80.06
Jul-90 18.94 81.06
Aug-90 21.46 78.54
Sep-90 15.59 84.41
Oct-90 17.58 82.42
Nov-90 15.43 84.57
Dec-90 29.70 70.30
Jan-91 26.17 73.83
Feb-91 18.15 81.85
Mar-91 19.99 80.01
Apr-91 16.62 83.38
May-91 16.50 83.50
Jun-91 14.72 85.28
Jul-91 15.51 84.49
Aug-91 16.73 83.27
Sep-91 12.10 87.90
Oct-91 16.61 83.39
Nov-91 17.28 82.72
Dec-91 20.04 79.96
Jan-92 18.61 81.39
Feb-92 16.57 83.43
Mar-92 19.10 80.90
Apr-92 13.40 86.60
May-92 13.45 86.55
Jun-92 18.96 81.04
Jul-92 20.22 79.78
Aug-92 19.66 80.34
Sep-92 14.81 85.19
Oct-92 14.19 85.81
Nov-92 17.32 82.68
Dec-92 26.11 73.89
Jan-93 22.37 77.63
Feb-93 23.15 76.85
Mar-93 26.39 73.61
Apr-93 17.08 82.92
May-93 12.89 87.11
Jun-93 16.75 83.25
Jul-93 13.94 86.06
Aug-93 15.88 84.12
Sep-93 15.37 84.63
Oct-93 16.96 83.04
Nov-93 18.82 81.18
Dec-93 21.39 78.61
Jan-94 29.53 70.47
Feb-94 26.17 73.83
Mar-94 17.44 82.56
Apr-94 16.97 83.03
May-94 12.37 87.63
Jun-94 18.23 81.77
Jul-94 20.55 79.45
Aug-94 16.25 83.75
Sep-94 12.05 87.95
Oct-94 14.07 85.93
Nov-94 19.25 80.75
Dec-94 20.75 79.25
Jan-95 26.17 73.83
Feb-95 21.09 78.91
Mar-95 20.70 79.30
Apr-95 18.70 81.30
May-95 19.32 80.68
Jun-95 24.06 75.94
Jul-95 19.92 80.08
Aug-95 20.15 79.85
Sep-95 14.42 85.58
Oct-95 17.91 82.09
Nov-95 22.15 77.85
Dec-95 32.34 67.66
Jan-96 37.33 62.67
Feb-96 28.10 71.90
Mar-96 24.06 75.94
Apr-96 19.82 80.18
May-96 21.08 78.92
Jun-96 25.33 74.67
Jul-96 24.71 75.29
Aug-96 25.31 74.69
Sep-96 21.31 78.69
Oct-96 22.81 77.19
Nov-96 22.09 77.91
Dec-96 33.37 66.63
Jan-97 31.59 68.41
Feb-97 24.79 75.21
Mar-97 21.90 78.10
Apr-97 20.15 79.85
May-97 16.84 83.16
Jun-97 23.86 76.14
Jul-97 22.50 77.50
Aug-97 21.44 78.56
Sep-97 14.97 85.03
Oct-97 18.45 81.55
Nov-97 21.78 78.22
Dec-97 26.46 73.54
Jan-98 24.95 75.05
Feb-98 24.61 75.39
Mar-98 24.15 75.85
Apr-98 20.88 79.12
May-98 22.52 77.48
Jun-98 29.58 70.42
Jul-98 21.14 78.86
Aug-98 22.97 77.03
Sep-98 21.06 78.94
Oct-98 18.25 81.75
Nov-98 16.71 83.29
Dec-98 26.78 73.22
Jan-99 32.34 67.66
Feb-99 21.09 78.91
Mar-99 21.91 78.09
Apr-99 24.27 75.73
May-99 23.81 76.19
Jun-99 29.12 70.88
Jul-99 28.93 71.07
Aug-99 23.89 76.11
Sep-99 20.65 79.35
Oct-99 19.94 80.06
Nov-99 18.59 81.41
Dec-99 22.00 78.00
Jan-00 26.25 73.75
Feb-00 25.24 74.76
Mar-00 23.01 76.99
Apr-00 24.63 75.37
May-00 25.75 74.25
Jun-00 33.66 66.34
Jul-00 29.69 70.31
Aug-00 30.04 69.96
Sep-00 21.90 78.10
Oct-00 23.93 76.07
Nov-00 27.18 72.82
Dec-00 37.25 62.75
Jan-01 24.58 75.42
Feb-01 27.27 72.73
Mar-01 24.78 75.22
Apr-01 20.71 79.29
May-01 18.53 81.47
Jun-01 24.82 75.18
Jul-01 21.88 78.12
Aug-01 23.82 76.18
Sep-01 32.34 67.66
Oct-01 15.22 84.78
Nov-01 15.29 84.71
Dec-01 19.78 80.22
Jan-02 18.98 81.02
Feb-02 15.31 84.69
Mar-02 21.41 78.59
Apr-02 17.42 82.58
May-02 17.24 82.76
Jun-02 21.36 78.64
Jul-02 20.34 79.66
Aug-02 17.38 82.62
Sep-02 12.05 87.95
Oct-02 15.82 84.18
Nov-02 14.79 85.21
Dec-02 21.66 78.34
Jan-03 16.68 83.32
Feb-03 23.46 76.54
Mar-03 17.42 82.58
Apr-03 13.15 86.85
May-03 15.07 84.93
Jun-03 17.64 82.36
Jul-03 20.34 79.66
Aug-03 21.00 79.00
Sep-03 14.37 85.63
Oct-03 13.61 86.39
Nov-03 19.80 80.20
Dec-03 23.96 76.04
Jan-04 25.15 74.85
Feb-04 22.52 77.48
Mar-04 18.71 81.29
Apr-04 16.96 83.04
May-04 22.38 77.62
Jun-04 27.05 72.95
Jul-04 24.05 75.95
Aug-04 21.71 78.29
Sep-04 16.09 83.91
Oct-04 19.00 81.00
Nov-04 20.88 79.12
Dec-04 28.44 71.56
Jan-05 28.61 71.39
Feb-05 22.42 77.58
Mar-05 23.06 76.94
Apr-05 16.56 83.44
May-05 16.33 83.67
Jun-05 24.80 75.20
Jul-05 29.08 70.92
Aug-05 24.84 75.16
Sep-05 17.34 82.66
Oct-05 18.74 81.26
Nov-05 19.97 80.03
Dec-05 28.99 71.01
Jan-06 21.24 78.76
Feb-06 24.70 75.30
Mar-06 23.88 76.12
Apr-06 21.58 78.42
May-06 21.73 78.27
Jun-06 27.17 72.83
Jul-06 26.30 73.70
Aug-06 24.20 75.80
Sep-06 23.78 76.22