Figure 3-5 Percentage of Flights Delayed and Average Length of Delay: 2004–2015
NOTES: Delays are based on data submitted by reporting carriers, which varies by year. For the monthly number of carriers reporting, please refer to the Air Travel Consumer Reports available at http://airconsumer.dot.gov/reports/index.htm. A flight is considered delayed when it arrived 15 or more minutes later than scheduled. Arriving flights consists of scheduled operations less canceled and diverted flights. Average minutes are calculated for delayed flights only.
SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, On-Time Performance Data, available at www.transtats.bts.gov as of March 2016.