DOT: Fewer flights on-time in June

August 4, 2009 8:31:35 AM PDT
The Department of Transportation says U.S. airlines had more late flights in June than in May. The 19 airlines that report monthly on-time data also had more delayed flights during the month than the same time a year ago.

DOT reported Tuesday that Hawaiian Airlines once again had the best on-time performance, while Comair - a subsidiary of Delta Air Lines Inc. - had the worst.

The most frequent causes for flight delays included airport congestion, equipment problems and weather.

The airlines report the causes of delays in broad categories - such as "Extreme Weather" and "National Aviation System Delay" - that were created by the airlines, industry groups, travel agents and government officials.

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