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June 2012 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)**
1JetBlue24JunJFK-SYR155910880.0081
2JetBlue23JunSYR-JFK182010880.0081
3United1000JunLAX-EWR2318241979.1764
4United523JunPHX-SFO1954241875.0088
5United523JunIAH-PHX1826171270.5992
6JetBlue915JunJFK-ORD210010770.0092
7JetBlue12JunFLL-JFK125010770.00191
8JetBlue25JunJFK-FLL91010770.0089
9United1415JunLAX-IAD2310302170.0063
10United1737JunLAX-EWR2237302170.0082
11United662JunORD-RIC1802251768.0073
12ExpressJet6070JunDEN-MCI1945291965.52104
13ExpressJet4391JunEWR-GSP2011201365.0076
14United412JunLAX-SFO2147201365.0093
15ExpressJet4221JunEWR-CMH1824171164.7169
16Southwest2501JunMDW-MSP2025241562.5060
17United398JunORD-MCO1928241562.5071
18ExpressJet4576JunIAH-CLL153213861.54101
19ExpressJet4382JunEWR-DTW1806201260.0081
20JetBlue704JunSJU-JFK202510660.00132
21JetBlue277JunFLL-SFO182010660.00100
22JetBlue278JunSFO-FLL220510660.00112
23JetBlue1015JunBOS-JFK154510660.00145
24JetBlue50JunFLL-JFK212510660.00127
25JetBlue152JunMCO-JFK212910660.00129
26SkyWest5426JunMRY-SFO171510660.0073
27SkyWest6222JunEUG-SFO192410660.00112
28SkyWest5462JunSFO-MRY160510660.0065
29Southwest2512JunBWI-LGA1945251560.0076
30Southwest840JunDEN-MSP2050251560.0072
31ExpressJet6185JunCVG-ORD2018221359.0985
32American Eagle3888JunASE-LAX1800171058.82102
33ExpressJet4417JunGSO-EWR1409171058.8283
34ExpressJet6120JunORD-TYS1840291758.6274
35United1196JunORD-LAX2025291758.6270
36ExpressJet6149JunDEN-TVC1835241458.3387
37Southwest1203JunPHX-IND1805241458.3366
38Southwest464JunSAN-MDW1855241458.3357
39United1691JunSFO-PIT1611241458.3368
40ExpressJet4290JunIAH-MCI2055261557.6971
41SkyWest5645JunSBA-SFO1545261557.69113
42ExpressJet5930JunIAD-SDF1900301756.67136
43ExpressJet4620JunORF-EWR1717301756.6791
44Frontier282JunDEN-STL1905301756.6774
45United1583JunDEN-LAX1921301756.6783
46United927JunSFO-LAX2228301756.6763
47United522JunSFO-PDX2245301756.6761
48United334JunORD-BWI2150231356.5257
49ExpressJet5330JunATL-AVL200516956.2565
50American Eagle3740JunORD-EWR1700251456.0074
51ExpressJet4391JunDCA-EWR1856251456.0057
52ExpressJet6063JunABQ-DEN1655251456.0098
53ExpressJet4123JunGSO-EWR1835251456.0099
54Southwest1155JunLAS-SLC2135251456.0060
55ExpressJet4148JunEWR-ATL2045181055.5699
56United261JunORD-DCA2105291655.1780
57ExpressJet4631JunEWR-BDL1629201155.0084
58United710JunORD-MSP2235201155.0088
59ExpressJet5816JunDEN-RAP1604221254.5578
60ExpressJet4282JunEWR-MKE2000241354.1772
61Southwest3040JunMDW-MCI2135241354.1764
62SkyWest6395JunORD-BOI2103281553.5770
63Southwest1229JunPHX-ONT1945281553.5747
64ExpressJet4448JunEWR-DCA1719301653.3377
65ExpressJet4530JunEWR-IAD1706301653.33124
66SkyWest5479JunMRY-SFO2054301653.3388
67SkyWest6438JunSMF-SFO1641301653.33100
68United442JunEWR-SFO175915853.33109
69United451JunLAS-SFO1942301653.3384
70American878JunDFW-EWR163017952.9453
71ExpressJet4221JunCMH-EWR203817952.9470
72ExpressJet3272JunIAH-TYR1420191052.63108
73ExpressJet4533JunJAN-IAH1855191052.6353
74ExpressJet3273JunTYR-IAH1549191052.63109
75ExpressJet5853JunRAP-DEN1743211152.3874
76United538JunDEN-DSM2050211152.3866
77ExpressJet4435JunEWR-MEM1630231252.1793
78SkyWest5240JunCOS-IAH1655231252.1778
79United1657JunDEN-ORD2148231252.1773
80United741JunORD-SFO1902231252.1788
81ExpressJet4325JunDCA-EWR1439251352.00118
82ExpressJet4321JunEWR-MCI2055251352.0075
83ExpressJet4237JunEWR-RDU2129251352.0070
84ExpressJet4438JunEWR-RIC2106251352.0074
85SkyWest5382JunSFO-SNA1559251352.0065
86Southwest763JunHOU-EWR1720251352.0089
87Southwest2520JunHOU-JAN1945251352.0066
88Southwest3042JunMDW-IND2015251352.0041
89Southwest1672JunSFO-LAX1950251352.0071
90United808JunEWR-MSY2025251352.0050
91Southwest1682JunLAX-SFO2030271451.8596
92ExpressJet4680JunIAH-CLT1743291551.7293
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