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May 2011 Regularly Scheduled Flights with More than 50% Delayed Arrivals of More than 30 Minutes

May 2011 Regularly Scheduled Flights with More than 50% Delayed Arrivals of More than 30 Minutes

Ranked by Percent of Flight Operations Not Arriving On-Time

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Rank Carrier Flight Number Month Origin-Dest Scheduled Departure Time Number of Operations (minimum of 10 per month) Number of Flight Operations Not Arriving On-Time* Percent of Flight Operations Not Arriving On-Time* Average Number of Minutes of Delay (30 min late flights only)**
1 Frontier 804 May MCI-LGA 1810 16 13 81.25 93
2 American Eagle 3841 May BOS-JFK 1830 31 23 74.19 71
3 Continental 264 May ORD-EWR 1800 27 20 74.07 100
4 Continental 281 May ORD-EWR 1900 27 20 74.07 75
5 American 614 May DFW-BOS 1735 26 18 69.23 107
6 American Eagle 3605 May ORD-BDL 2150 27 18 66.67 70
7 American Eagle 3870 May ORD-CMH 2105 27 18 66.67 181
8 American Eagle 4115 May ORD-MKE 1800 27 18 66.67 60
9 Southwest 3233 May MDW-BOS 1600 27 18 66.67 105
10 Southwest 2894 May MDW-LGA 1850 27 18 66.67 100
11 Southwest 2636 May BWI-ISP 2050 26 17 65.38 83
12 American 2374 May DFW-ORD 2035 17 11 64.71 70
13 American Eagle 3835 May DCA-JFK 1825 31 20 64.52 69
14 American Eagle 3740 May ORD-EWR 1600 31 20 64.52 68
15 Southwest 282 May EWR-MDW 1755 31 20 64.52 107
16 Atlantic Southeast 4978 May DCA-BOS 1700 25 16 64.00 107
17 American 738 May DFW-LGA 1520 22 14 63.64 83
18 United 896 May ORD-BOS 1735 22 14 63.64 104
19 Atlantic Southeast 4979 May MEM-DFW 1945 30 19 63.33 102
20 American 403 May DFW-TUS 2220 27 17 62.96 91
21 Southwest 672 May SLC-LAS 1930 27 17 62.96 69
22 ExpressJet 2203 May DTW-EWR 2011 24 15 62.50 96
23 ExpressJet 2816 May EWR-MSY 2045 16 10 62.50 114
24 JetBlue 958 May MCO-BOS 1815 24 15 62.50 97
25 Atlantic Southeast 5080 May BOS-IND 1915 26 16 61.54 90
26 ExpressJet 2741 May CVG-EWR 1830 26 16 61.54 105
27 ExpressJet 2248 May MEM-EWR 1900 26 16 61.54 85
28 Southwest 672 May LAS-PDX 2025 26 16 61.54 63
29 American 2356 May ORD-EWR 1825 31 19 61.29 120
30 American Eagle 3812 May JFK-BOS 1630 31 19 61.29 91
31 American Eagle 3919 May LIT-ORD 1505 31 19 61.29 126
32 Southwest 173 May MDW-EWR 1420 31 19 61.29 88
33 US Airways 1232 May CLT-BOS 1950 31 19 61.29 79
34 American 154 May ORD-BOS 1720 30 18 60.00 96
35 Atlantic Southeast 5143 May ATL-VPS 1630 10 6 60.00 71
36 ExpressJet 2774 May DAY-EWR 1832 25 15 60.00 103
37 American 1184 May ORD-EWR 1215 27 16 59.26 76
38 Atlantic Southeast 5753 May IAD-LGA 1715 27 16 59.26 96
39 Atlantic Southeast 5734 May LGA-IAD 1923 27 16 59.26 96
40 JetBlue 926 May ORD-BOS 1945 27 16 59.26 105
41 AirTran 821 May BWI-BOS 1735 22 13 59.09 119
42 United 696 May ORD-LGA 1900 22 13 59.09 95
43 JetBlue 1179 May BOS-EWR 1820 24 14 58.33 97
44 JetBlue 927 May BOS-ORD 1955 12 7 58.33 126
45 American 1869 May ORD-STL 2105 31 18 58.06 83
46 American Eagle 3855 May ORD-JFK 1600 31 18 58.06 96
47 ExpressJet 2714 May BWI-EWR 1651 31 18 58.06 106
48 Frontier 516 May DEN-LGA 1514 31 18 58.06 94
49 Southwest 222 May MDW-EWR 1620 31 18 58.06 105
50 Atlantic Southeast 4981 May BOS-DCA 1915 26 15 57.69 79
51 ExpressJet 3084 May CLE-LGA 1659 26 15 57.69 111
52 ExpressJet 2747 May EWR-BNA 2050 26 15 57.69 85
53 ExpressJet 2264 May IND-EWR 1730 26 15 57.69 107
54 Southwest 2625 May BWI-BDL 2110 26 15 57.69 120
55 Southwest 667 May BWI-BUF 2050 26 15 57.69 57
56 Southwest 50 May DAL-MCI 1950 26 15 57.69 136
57 Southwest 325 May HOU-CRP 2035 26 15 57.69 97
58 Southwest 796 May MDW-BOS 2030 26 15 57.69 74
59 United 436 May ORD-EWR 1500 26 15 57.69 77
60 ExpressJet 5822 May BNA-ORD 1840 21 12 57.14 109
61 ExpressJet 5822 May ORD-BNA 1638 21 12 57.14 72
62 JetBlue 1017 May BOS-JFK 1850 28 16 57.14 106
63 American 350 May ORD-LGA 1755 30 17 56.67 80
64 Atlantic Southeast 5190 May HOU-ATL 1600 30 17 56.67 125
65 ExpressJet 2516 May ROC-EWR 1516 23 13 56.52 82
66 ExpressJet 2283 May IAH-CID 1950 16 9 56.25 59
67 ExpressJet 3073 May GRR-EWR 1910 25 14 56.00 94
68 JetBlue 918 May ORD-JFK 1835 25 14 56.00 129
69 American 1105 May DCA-DFW 2005 27 15 55.56 82
70 American 1548 May DFW-DCA 1525 27 15 55.56 88
71 American 1677 May ORD-SNA 1845 27 15 55.56 50
72 American Eagle 3962 May MKE-ORD 1915 27 15 55.56 65
73 American Eagle 3945 May ORD-PIT 2140 27 15 55.56 63
74 American Eagle 3850 May ORD-XNA 2000 27 15 55.56 81
75 Atlantic Southeast 5009 May IND-BOS 1820 27 15 55.56 92
76 Continental 256 May ORD-EWR 1700 27 15 55.56 95
77 ExpressJet 6107 May IAD-MHT 1715 18 10 55.56 93
78 ExpressJet 3046 May MEM-EWR 1219 27 15 55.56 92
79 Mesa 3757 May ORD-CLT 1905 27 15 55.56 83
80 Southwest 3320 May BOS-MDW 1950 27 15 55.56 109
81 Southwest 327 May BWI-BOS 2050 27 15 55.56 77
82 Southwest 176 May BWI-GSP 1955 27 15 55.56 72
83 Southwest 782 May DAL-LBB 2025 27 15 55.56 85
84 Southwest 672 May DEN-SLC 1740 27 15 55.56 70
85 Southwest 217 May EWR-MDW 1955 27 15 55.56 134
86 Southwest 117 May HOU-OKC 2005 27 15 55.56 100
87 US Airways 1893 May PIT-PHL 1745 27 15 55.56 61
88 American 1183 May IAD-DFW 1950 29 16 55.17 114
89 United 836 May ORD-BOS 1846 29 16 55.17 98
90 American 1183 May DFW-OKC 2255 31 17 54.84 72
91 American 2356 May DFW-ORD 1510 31 17 54.84 108
92 American 515 May DFW-SFO 1740 31 17 54.84 86
93 American 874 May ORD-BOS 1910 31 17 54.84 88
94 American Eagle 3777 May JFK-ORD 1620 31 17 54.84 112
95 American Eagle 3703 May ORD-ATL 1725 31 17 54.84 88
96 American Eagle 4374 May ORD-CMI 1815 31 17 54.84 80
97 American Eagle 4357 May ORD-GRB 1725 31 17 54.84 75
98 American Eagle 4047 May ORD-RIC 1625 31 17 54.84 92
99 Atlantic Southeast 5183 May ATL-HOU 1620 31 17 54.84 50
100 Southwest 216 May EWR-STL 1625 31 17 54.84 99
101 Southwest 36 May HOU-DAL 1500 31 17 54.84 91
102 Southwest 1568 May LAS-LAX 1940 31 17 54.84 69
103 Southwest 257 May MDW-EWR 1250 31 17 54.84 79
104 United 502 May ORD-LGA 1800 31 17 54.84 105
105 US Airways 967 May PHL-SFO 1800 31 17 54.84 74
106 AirTran 357 May LGA-ATL 1859 22 12 54.55 87
107 American 1940 May ORD-MIA 1940 22 12 54.55 104
108 Atlantic Southeast 5365 May ATL-HPN 1610 22 12 54.55 80
109 ExpressJet 6082 May ORD-CID 1444 11 6 54.55 113
110 ExpressJet 2019 May STL-EWR 1656 22 12 54.55 104
111 ExpressJet 2533 May DTW-EWR 1716 24 13 54.17 128
112 ExpressJet 2548 May EWR-DTW 1738 24 13 54.17 106
113 Atlantic Southeast 4980 May DCA-BOS 1900 26 14 53.85 110
114 Atlantic Southeast 5325 May DCA-JAN 1930 26 14 53.85 87
115 Continental 1526 May ORD-EWR 2000 26 14 53.85 107
116 ExpressJet 2522 May CLE-BOS 1855 26 14 53.85 117
117 ExpressJet 2594 May EWR-DTW 2000 26 14 53.85 84
118 ExpressJet 2379 May EWR-SDF 2050 26 14 53.85 85
119 ExpressJet 2717 May EWR-STL 2100 26 14 53.85 94
120 ExpressJet 6006 May IAD-DAY 2205 13 7 53.85 54
121 ExpressJet 2298 May IND-EWR 1915 26 14 53.85 79
122 ExpressJet 2505 May RIC-EWR 1712 26 14 53.85 96
123 ExpressJet 2808 May XNA-EWR 1842 26 14 53.85 96
124 Southwest 971 May BWI-ALB 2050 26 14 53.85 51
125 Atlantic Southeast 5145 May ATL-HOU 1945 28 15 53.57 113
126 JetBlue 924 May ORD-BOS 1600 28 15 53.57 123
127 American 857 May RDU-ORD 1750 30 16 53.33 77
128 American Eagle 3745 May ORD-PHL 1545 30 16 53.33 108
129 United 882 May ORD-BOS 1614 30 16 53.33 138
130 Delta 1623 May BOS-DTW 1820 19 10 52.63 105
131 Frontier 436 May DEN-OMA 1555 19 10 52.63 56
132 ExpressJet 5874 May CID-ORD 1911 21 11 52.38 68
133 American Eagle 4353 May ORD-CLE 2005 23 12 52.17 81
134 JetBlue 1016 May JFK-BOS 2100 23 12 52.17 85
135 ExpressJet 5930 May IAD-SDF 1740 25 13 52.00 110
136 United 676 May ORD-LGA 1000 25 13 52.00 104
137 American 1072 May DFW-PHL 1925 27 14 51.85 81
138 American 2491 May ORD-AUS 2010 27 14 51.85 80
139 American 348 May ORD-LGA 1855 27 14 51.85 55
140 American Eagle 4157 May BNA-ORD 1840 27 14 51.85 71
141 American Eagle 4254 May ORD-AVP 1850 27 14 51.85 76
142 American Eagle 4308 May ORD-BNA 2030 27 14 51.85 54
143 American Eagle 3918 May ORD-DAY 2200 27 14 51.85 60
144 American Eagle 3924 May TUL-ORD 2000 27 14 51.85 91
145 Continental 847 May EWR-ORD 1700 27 14 51.85 81
146 Southwest 855 May BOS-BWI 1915 27 14 51.85 124
147 Southwest 37 May HOU-PHL 1705 27 14 51.85 165
148 Southwest 1549 May MDW-LGA 2040 27 14 51.85 64
149 Southwest 855 May PHL-BOS 1725 27 14 51.85 129
150 United 690 May ORD-LGA 1700 27 14 51.85 101
151 US Airways 983 May ORD-CLT 1746 27 14 51.85 82
152 Southwest 1924 May LAX-SMF 2045 29 15 51.72 54
153 United 384 May IAD-SLC 1735 29 15 51.72 91
154 American 409 May DCA-DFW 1845 31 16 51.61 75
155 American 1016 May DFW-BOS 1600 31 16 51.61 78
156 American 1156 May DFW-DCA 1405 31 16 51.61 70
157 American 558 May DFW-EWR 1135 31 16 51.61 75
158 American 848 May DFW-EWR 1900 31 16 51.61 100
159 American 2368 May DFW-ORD 1815 31 16 51.61 76
160 American 1019 May DFW-SEA 1845 31 16 51.61 90
161 American 1515 May JFK-MCO 1940 31 16 51.61 92
162 American Eagle 4221 May GRB-ORD 1850 31 16 51.61 82
163 American Eagle 4358 May IND-JFK 1720 31 16 51.61 96
164 American Eagle 3846 May JFK-DCA 2100 31 16 51.61 82
165 American Eagle 4305 May JFK-IND 2030 31 16 51.61 116
166 American Eagle 4218 May JFK-PIT 2030 31 16 51.61 83
167 American Eagle 3864 May ORD-ABQ 1935 31 16 51.61 80
168 American Eagle 4261 May TUL-ORD 1410 31 16 51.61 67
169 Atlantic Southeast 5341 May DTW-EWR 1745 31 16 51.61 110
170 Atlantic Southeast 4989 May MEM-BOS 1414 31 16 51.61 105
171 Southwest 1146 May BWI-BOS 1825 31 16 51.61 83
172 United 223 May IAD-BOS 1651 31 16 51.61 130
173 US Airways 1400 May BOS-CLT 1700 31 16 51.61 63
174 US Airways 1770 May CLT-BOS 1420 31 16 51.61 60
175 US Airways 1488 May CLT-BOS 1610 31 16 51.61 75
176 US Airways 1774 May CLT-DTW 2215 31 16 51.61 60
177 US Airways 707 May PHL-ORD 1800 31 16 51.61 105

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

* Includes canceled and diverted flights

** For flights late more than 30 minutes only. Excludes canceled and diverted flights