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Chronically Delayed Flights - At the end of June, there were 37 flights that were chronically delayed – more than 30 minutes late more than 50 percent of the time – for two consecutive months. There were no chronically delayed flights for three consecutive months or more. A list of flights that were chronically delayed for a single month is available from BTS. Causes of Flight Delays - In June, the carriers filing on-time performance data reported total delays of 22.97 percent – 6.29 percent of their flights were delayed by aviation system delays, compared to 5.34 percent in May; 8.81 percent by late-arriving aircraft, compared to 6.62 percent in May; 6.97 percent by factors within the airline’s control, such as maintenance or crew problems, compared to 5.31 percent in May; 0.87 percent by extreme weather, compared to 0.73 percent in May; and 0.03 percent for security reasons, equal to 0.03 percent in May. In addition, 1.81 percent of flights were canceled and 0.38 percent were diverted. Weather is a factor in both the extreme-weather category and the aviation-system category. This includes delays due to the re-routing of flights by DOT’s Federal Aviation Administration in consultation with the carriers involved. Weather is also a factor in delays attributed to late-arriving aircraft, although airlines do not report specific causes in that category. Data collected by BTS also shows the percentage of late flights delayed by weather, including those reported in either the category of extreme weather or included in National Aviation System delays. In June, 35.57 percent of late flights were delayed by weather, down from 37.05 percent in June 2014, but up from 35.21 percent in May 2015. Mishandled Baggage - The U.S. carriers reporting flight delays and mishandled baggage data posted a mishandled baggage rate of 3.63 reports per 1,000 passengers in June, down from June 2014’s rate of 3.77, but up from May 2015’s rate of 3.09. For the first six months of the year, the carriers posted a mishandled baggage rate of 3.52 per 1,000 passengers, down from the 3.84 rate for the first half of 2014.
Bumping - The report also includes reports of
involuntary denied boarding, or bumping, for the second
quarter and first six months of this year. The 14 Incidents Involving Animals - In June, carriers reported two incidents involving the loss, injury, or death of animals while traveling by air, down from the 13 reports filed in in May 2015. June’s incidents involved the death of one animal and one injured animal. Complaints About Treatment of Disabled Passengers - The report also contains a tabulation of complaints filed with DOT in June against airlines regarding the treatment of passengers with disabilities. The Department received a total of 69 disability-related complaints in June, down from both the 83 complaints received in June 2014 and the 73 complaints received in May 2015. For the first six months of the year, the Department received 364 disability-related complaints, down 6.7 percent from the 390 filed during January-June 2014. Complaints About Discrimination - In June, the Department received five complaints alleging discrimination by airlines due to factors other than disability – such as race, religion, national origin, or sex – equal to the total of five recorded in June 2014, but up from the two recorded in May 2015. For the first six months of this year, the Department received 29 discrimination complaints, down from the 32 recorded in January-June 2014. Overall - 74.8
percent on-time arrivals |
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