Table 4-2 Percentage of All Delayed Flights by Length of Time Delayed: 2004-2014
| Total number of arriving flights | Percentage of arriving flights, delayed | Average length of delay (minutes) | 15-29 minutes | 30-59 minutes | 60-89 minutes | 90-119 minutes | More than 120 minutes | |
|---|---|---|---|---|---|---|---|---|
| 2004 | 7,129,270 | 19.9 | 51 | 42.3 | 31.3 | 12.3 | 6.1 | 7.8 |
| 2005 | 7,140,596 | 20.5 | 52 | 41.8 | 31.1 | 12.4 | 6.2 | 8.1 |
| 2006 | 7,141,922 | 22.6 | 54 | 40.3 | 31.2 | 12.8 | 6.5 | 8.9 |
| 2007 | 7,455,458 | 24.1 | 56 | 39.1 | 31.0 | 13.1 | 6.9 | 9.7 |
| 2008 | 7,009,726 | 21.7 | 57 | 39.1 | 30.5 | 13.0 | 6.9 | 10.2 |
| 2009 | 6,450,285 | 18.8 | 54 | 40.7 | 30.7 | 12.7 | 6.6 | 9.0 |
| 2010 | 6,450,117 | 18.2 | 54 | 41.2 | 30.7 | 12.5 | 6.5 | 8.9 |
| 2011 | 6,085,281 | 18.2 | 56 | 40.4 | 30.1 | 12.8 | 6.8 | 9.7 |
| 2012 | 6,096,762 | 16.6 | 56 | 40.6 | 30.1 | 12.6 | 6.7 | 9.8 |
| 2013 | 6,369,482 | 19.9 | 56 | 39.7 | 30.4 | 12.7 | 6.8 | 10.1 |
| 2014 | 5,819,811 | 21.3 | 57 | 39.2 | 31.3 | 12.8 | 6.6 | 9.9 |
NOTES: 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 at the gate 15 or more minutes later than scheduled. Arriving flights consists of scheduled operations less canceled and diverted flights. Average length of delay is calculated for delayed flights only. Percents may not add to 100 due to rounding. The average length of flight delays has been over 50 minutes in every year since 2004 and reached 57 minutes in 2014, even though the number of arriving domestic flights operstedoperated by the large U.S. airlines flights decreased by 22.5 percent over that period.
SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, Transtats Database, Airline On-Time Performance. Available at http://www.transtats.bts.gov/ as of June 2015.