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

September 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 Southwest 254 Sep BOS-DEN 1755 26 18 69.2 54
2 Comair 6473 Sep BOS-JFK 1755 24 16 66.7 75
3 Delta 2567 Sep JFK-SAT 2005 24 15 62.5 79
4 Delta 1772 Sep DTW-JFK 1715 24 15 62.5 59
5 Comair 6512 Sep DTW-JFK 1525 24 15 62.5 86
6 SkyWest 6704 Sep ACV-SFO 1720 12 7 58.3 70
7 Comair 6505 Sep ATL-ORD 2130 20 11 55.0 91
8 Delta 1399 Sep BOS-LGA 1930 24 13 54.2 86
9 SkyWest 4919 Sep SDF-MSP 1327 24 13 54.2 55
10 Pinnacle 4040 Sep PHL-JFK 1720 24 13 54.2 119
11 SkyWest 6935 Sep ACV-CEC 813 26 14 53.9 96
12 SkyWest 4782 Sep SFO-LAX 1955 30 16 53.3 58
13 SkyWest 6921 Sep ACV-SFO 600 29 15 51.7 145

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