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

RankCarrierFlight NumberMonthOrigin-DestScheduled Departure TimeNumber 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)**
1SkyWest4874JanSDF-MSP1305272177.7866
2SkyWest6652JanSFO-MOD937302376.6787
3Atlantic Southeast5239JanDCA-BOS655181372.22106
4Atlantic Southeast5234JanATL-FNT1155141071.4383
5American949JanMCO-MIA1655312167.7465
6SkyWest6263JanSFO-FAT1009312167.7498
7SkyWest6652JanMOD-SFO1057302066.6797
8Atlantic Southeast5089JanDTW-BDL2140231565.2266
9SkyWest6598JanSMF-SFO822312064.5291
10Southwest951JanSLC-SEA1710221463.6454
11Atlantic Southeast5248JanBOS-DCA935191263.1683
12Southwest951JanSEA-SMF1845261661.5456
13American1245JanMCO-MIA1800311961.2957
14JetBlue383JanLGA-FLL2145311961.2983
15Atlantic Southeast4999JanATL-OMA1915181161.11155
16Southwest32JanMDW-PIT1915231460.8759
17ExpressJet5953JanORD-MCI2010201260.0087
18JetBlue14JanFLL-JFK1655301860.0072
19SkyWest4655JanMSP-RST1905241458.3367
20SkyWest6395JanORD-BOI2037241458.3391
21AirTran367JanLGA-ATL1629281657.1463
22Atlantic Southeast5234JanFNT-ATL141614857.1490
23JetBlue453JanBOS-FLL925301756.6765
24JetBlue11JanJFK-FLL212516956.2592
25Southwest395JanDEN-GEG2030251456.0054
26SkyWest4520JanDAY-MSP1334271555.5659
27JetBlue132JanRSW-JFK1730201155.0079
28Southwest2645JanBOS-BWI1850201155.0098
29Southwest2631JanMDW-BUF2045201155.0059
30American1267JanMIA-SJU1640311754.8476
31American1692JanSJU-JFK2115311754.8474
32Delta347JanIND-ATL1718311754.8454
33JetBlue447JanBOS-TPA1735311754.8478
34JetBlue378JanFLL-LGA1807311754.8480
35JetBlue381JanLGA-FLL1829311754.8481
36SkyWest6263JanFAT-SFO1132311754.84113
37Atlantic Southeast5525JanDSM-ATL1732221254.5592
38Delta1390JanLGA-BOS1630221254.5562
39SkyWest6283JanORD-DTW1603241354.1764
40Southwest1848JanBNA-RDU1910241354.1761
41Atlantic Southeast5258JanBOS-DCA1435261453.8548
42JetBlue1257JanBOS-IAD1835261453.8570
43SkyWest4885JanMSP-SDF1540261453.8564
44SkyWest4850JanGFK-MSP1505301653.3393
45SkyWest6747JanSFO-SMF950301653.3394
46SkyWest6747JanSMF-SFO1050301653.3395
47JetBlue633JanBOS-SFO915191052.6370
48JetBlue493JanBOS-SEA1750211152.3862
49Atlantic Southeast5383JanATL-OKC1545231252.1790
50Delta1204JanJAC-SLC700231252.1780
51JetBlue1251JanBOS-IAD830231252.1761
52JetBlue1231JanBOS-RDU1836231252.1774
53JetBlue1289JanBOS-RIC1905231252.1787
54Southwest572JanPHL-BOS1610231252.1788
55Atlantic Southeast5389JanDTW-TUL2010251352.0077
56Atlantic Southeast5012JanOKC-DTW1735251352.0088
57Southwest931JanDEN-BOI2030251352.0061
58JetBlue1245JanBOS-CLT930271451.8581
59SkyWest6390JanFAT-SFO745271451.85102
60SkyWest4846JanICT-MEM1640271451.85100
61SkyWest4767JanMSP-SDF955271451.8555
62American Eagle3827JanATL-ORD1145311651.6167
63Delta2442JanATL-EWR1352311651.6152
64Delta2843JanEWR-ATL1800311651.6189
65JetBlue562JanFLL-SWF1925311651.6195
66JetBlue662JanMCO-BUF1824311651.6190
67SkyWest6329JanACV-SFO846311651.6190
Notes: 

* Includes canceled and diverted flights

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

Source: 

Bureau of Transportation Statistics, Airline On-Time Data