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August 2010 Regularly Scheduled Flights with More than 50% Delayed Arrivals of More than 30 Minutes

August 2010 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 Alaska 308 Aug SEA-SFO 810 21 19 90.5 75
2 Alaska 303 Aug SFO-SEA 1105 21 19 90.5 77
3 SkyWest 6824 Aug SFO-RDD 1536 20 18 90.0 94
4 Delta 2357 Aug ATL-SDF 1854 16 13 81.3 108
5 SkyWest 6505 Aug LMT-SFO 838 31 25 80.7 79
6 SkyWest 6256 Aug SFO-FAT 1022 31 25 80.7 84
7 SkyWest 6099 Aug ACV-SFO 848 31 24 77.4 101
8 SkyWest 6256 Aug FAT-SFO 1147 31 24 77.4 85
9 SkyWest 6909 Aug OTH-SFO 1325 31 24 77.4 102
10 SkyWest 6336 Aug RNO-SFO 930 28 21 75.0 97
11 SkyWest 6058 Aug ACV-SFO 1249 31 23 74.2 95
12 SkyWest 6673 Aug MRY-SFO 929 31 23 74.2 101
13 SkyWest 6909 Aug SFO-OTH 1114 31 23 74.2 100
14 SkyWest 6846 Aug SMF-SFO 1152 31 23 74.2 97
15 SkyWest 4678 Aug SFO-LAX 2005 30 22 73.3 56
16 Southwest 1505 Aug DEN-SFO 900 26 19 73.1 70
17 SkyWest 6840 Aug SBA-SFO 1036 28 20 71.4 77
18 SkyWest 6687 Aug MRY-SFO 1145 31 22 71.0 88
19 SkyWest 6836 Aug SBA-SFO 843 31 22 71.0 84
20 SkyWest 6829 Aug SBP-SFO 953 31 22 71.0 78
21 SkyWest 6580 Aug SFO-MFR 1114 31 22 71.0 84
22 SkyWest 6747 Aug SMF-SFO 1045 31 22 71.0 93
23 Mesa 2966 Aug LAS-SFO 930 31 21 67.7 73
24 SkyWest 6652 Aug MOD-SFO 1039 31 21 67.7 85
25 SkyWest 6678 Aug MRY-SFO 1409 31 21 67.7 91
26 SkyWest 6504 Aug OTH-SFO 855 31 21 67.7 97
27 SkyWest 6164 Aug OTH-SFO 1711 31 21 67.7 104
28 SkyWest 6264 Aug SFO-FAT 1254 31 21 67.7 92
29 SkyWest 6678 Aug SFO-MRY 1305 31 21 67.7 89
30 SkyWest 6164 Aug SFO-OTH 1501 31 21 67.7 96
31 SkyWest 6149 Aug SFO-SBP 1159 31 21 67.7 93
32 SkyWest 6846 Aug SFO-SMF 1044 31 21 67.7 98
33 Comair 6335 Aug MEM-OKC 1920 15 10 66.7 53
34 Southwest 533 Aug SAN-SJC 2000 12 8 66.7 77
35 Southwest 444 Aug SFO-SNA 1135 12 8 66.7 105
36 Southwest 846 Aug SAN-SFO 940 29 19 65.5 74
37 SkyWest 6181 Aug CEC-SFO 918 31 20 64.5 101
38 SkyWest 6192 Aug CIC-SFO 1013 31 20 64.5 95
39 SkyWest 6134 Aug ONT-SFO 1000 31 20 64.5 74
40 SkyWest 6841 Aug SBA-SFO 1237 31 20 64.5 87
41 SkyWest 6149 Aug SBP-SFO 1337 31 20 64.5 88
42 SkyWest 6058 Aug SFO-ACV 1058 31 20 64.5 105
43 SkyWest 6841 Aug SFO-SBA 1040 31 20 64.5 77
44 Atlantic Southeast 5515 Aug ATL-BTR 1929 14 9 64.3 103
45 SkyWest 6400 Aug EUG-SFO 836 30 19 63.3 62
46 SkyWest 6597 Aug SFO-RNO 1834 24 15 62.5 61
47 Southwest 1281 Aug SFO-LAS 1115 16 10 62.5 69
48 Southwest 3572 Aug DAL-BHM 1915 13 8 61.5 69
49 American 1928 Aug LAX-SFO 950 31 19 61.3 76
50 SkyWest 6951 Aug ACV-SFO 1053 31 19 61.3 89
51 SkyWest 6264 Aug FAT-SFO 1415 31 19 61.3 107
52 SkyWest 6580 Aug MFR-SFO 1310 31 19 61.3 81
53 SkyWest 6508 Aug AUS-SFO 1657 23 14 60.9 77
54 SkyWest 6597 Aug RNO-SFO 1954 23 14 60.9 61
55 United 671 Aug PHX-SFO 715 23 14 60.9 63
56 SkyWest 6165 Aug SNA-SFO 1025 28 17 60.7 66
57 SkyWest 6296 Aug SLC-DEN 1425 10 6 60.0 81
58 SkyWest 6181 Aug SFO-PHX 1258 24 14 58.3 74
59 Southwest 151 Aug DEN-BWI 1620 12 7 58.3 131
60 Southwest 616 Aug LAX-ABQ 1210 12 7 58.3 74
61 Southwest 2111 Aug MSY-BNA 1200 12 7 58.3 61
62 Southwest 2265 Aug OAK-LAS 1140 12 7 58.3 65
63 Southwest 365 Aug SJC-LAX 2135 12 7 58.3 71
64 Southwest 618 Aug SMF-BUR 1525 12 7 58.3 89
65 Southwest 531 Aug SNA-SMF 1335 12 7 58.3 92
66 SkyWest 6575 Aug MFR-SFO 1025 31 18 58.1 103
67 SkyWest 6173 Aug SFO-BFL 1502 31 18 58.1 80
68 SkyWest 6193 Aug SFO-CIC 1229 31 18 58.1 77
69 SkyWest 6687 Aug SFO-MRY 1039 31 18 58.1 87
70 SkyWest 6737 Aug SFO-SMF 1252 31 18 58.1 90
71 ExpressJet 3062 Aug ATL-EWR 1900 14 8 57.1 95
72 Southwest 1338 Aug LAX-SFO 845 14 8 57.1 61
73 Delta 1971 Aug DTW-ANC 1920 16 9 56.3 53
74 SkyWest 6255 Aug BUR-SFO 856 31 17 54.8 73
75 SkyWest 6350 Aug ONT-SFO 1404 31 17 54.8 76
76 SkyWest 6596 Aug SFO-MFR 1314 31 17 54.8 71
77 SkyWest 6350 Aug SFO-ONT 1213 31 17 54.8 81
78 SkyWest 6822 Aug SFO-RDD 1159 31 17 54.8 92
79 United 954 Aug LAX-SFO 1035 31 17 54.8 60
80 United 827 Aug SEA-SFO 910 31 17 54.8 59
81 Comair 6494 Aug OKC-ATL 1740 11 6 54.6 66
82 Atlantic Southeast 5496 Aug CHO-ATL 1715 13 7 53.9 48
83 Comair 6326 Aug MCI-LGA 1849 13 7 53.9 74
84 Comair 6575 Aug SDF-MSP 1327 13 7 53.9 73
85 SkyWest 4781 Aug SDF-ATL 1915 13 7 53.9 103
86 Southwest 2189 Aug LAX-SFO 920 17 9 52.9 91
87 American 936 Aug MIA-BOS 2155 23 12 52.2 76
88 American 2047 Aug MIA-STL 2015 23 12 52.2 83
89 Atlantic Southeast 7124 Aug ORD-SAV 1420 23 12 52.2 97
90 JetBlue 1014 Aug JFK-BOS 1724 27 14 51.9 102
91 Alaska 305 Aug SFO-SEA 1300 31 16 51.6 58
92 American 2574 Aug MIA-ATL 1850 31 16 51.6 93
93 JetBlue 130 Aug JFK-BUF 1830 31 16 51.6 103
94 SkyWest 6568 Aug MFR-SFO 718 31 16 51.6 72
95 SkyWest 6616 Aug RNO-SFO 1704 31 16 51.6 82
96 SkyWest 6961 Aug SFO-ACV 1523 31 16 51.6 86
97 SkyWest 6183 Aug SFO-CEC 1141 31 16 51.6 76
98 SkyWest 6661 Aug SFO-MOD 1536 31 16 51.6 87
99 SkyWest 6616 Aug SFO-RNO 1544 31 16 51.6 76
100 SkyWest 6598 Aug SMF-SFO 827 31 16 51.6 66
101 SkyWest 6737 Aug SMF-SFO 1409 31 16 51.6 88

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