| Code | Year/Month | Avg. Delay |
|---|---|---|
| IAD | 2003/6 | 52.4 min |
| IAD | 2003/7 | 57.9 min |
| IAD | 2003/8 | 56.9 min |
| IAD | 2003/9 | 52.8 min |
| IAD | 2003/10 | 53.5 min |
| IAD | 2003/11 | 56.1 min |
| IAD | 2003/12 | 51.3 min |
| IAD | 2004/1 | 57.7 min |
| IAD | 2004/2 | 48.3 min |
| IAD | 2004/3 | 52.9 min |
| IAD | 2004/4 | 48.6 min |
| IAD | 2004/5 | 52.5 min |
| IAD | 2004/6 | 48 min |
| IAD | 2004/7 | 53.5 min |
| IAD | 2004/8 | 54.7 min |
| IAD | 2004/9 | 49.7 min |
| IAD | 2004/10 | 50.2 min |
| IAD | 2004/11 | 55.8 min |
| IAD | 2004/12 | 53.6 min |
| IAD | 2005/1 | 57 min |
| IAD | 2005/2 | 54.8 min |
| IAD | 2005/3 | 55.3 min |
| IAD | 2005/4 | 51.5 min |
| IAD | 2005/5 | 55.6 min |
| IAD | 2005/6 | 62.1 min |
| IAD | 2005/7 | 63.3 min |
| IAD | 2005/8 | 54.6 min |
| IAD | 2005/9 | 52.1 min |
| IAD | 2005/10 | 56.6 min |
| IAD | 2005/11 | 58.9 min |
| IAD | 2005/12 | 55.3 min |
| IAD | 2006/1 | 63.1 min |
| IAD | 2006/2 | 63.2 min |
| IAD | 2006/3 | 54.7 min |
| IAD | 2006/4 | 48 min |
| IAD | 2006/5 | 55.1 min |
| IAD | 2006/6 | 73.9 min |
| IAD | 2006/7 | 68.8 min |
| IAD | 2006/8 | 63.1 min |
| IAD | 2006/9 | 67.1 min |
| IAD | 2006/10 | 65 min |
| IAD | 2006/11 | 56 min |
| IAD | 2006/12 | 56.6 min |
| IAD | 2007/1 | 53.4 min |
| IAD | 2007/2 | 67.4 min |
| IAD | 2007/3 | 56 min |
| IAD | 2007/4 | 59.4 min |
| IAD | 2007/5 | 51.8 min |
| IAD | 2007/6 | 59.3 min |
| IAD | 2007/7 | 61.6 min |
| IAD | 2007/8 | 67 min |
| IAD | 2007/9 | 59 min |
| IAD | 2007/10 | 55 min |
| IAD | 2007/11 | 55.8 min |
| IAD | 2007/12 | 68.3 min |
| IAD | 2008/1 | 71.4 min |
| IAD | 2008/2 | 70.8 min |
| IAD | 2008/3 | 60.8 min |
| IAD | 2008/4 | 65.4 min |
| IAD | 2008/5 | 62.7 min |
| IAD | 2008/6 | 73 min |
| IAD | 2008/7 | 65.2 min |
| IAD | 2008/8 | 61.8 min |
| IAD | 2008/9 | 56.5 min |
| IAD | 2008/10 | 57.9 min |
| IAD | 2008/11 | 58.6 min |
| IAD | 2008/12 | 66.3 min |
| IAD | 2009/1 | 58.2 min |
| IAD | 2009/2 | 62.7 min |
| IAD | 2009/3 | 64.4 min |
| IAD | 2009/4 | 63.6 min |
| IAD | 2009/5 | 61.1 min |
| IAD | 2009/6 | 69.5 min |
| IAD | 2009/7 | 63.9 min |
| IAD | 2009/8 | 65.7 min |
| IAD | 2009/9 | 57.3 min |
| IAD | 2009/10 | 55.1 min |
| IAD | 2009/11 | 56.5 min |
| IAD | 2009/12 | 59.1 min |
| IAD | 2010/1 | 58 min |
| IAD | 2010/2 | 60.2 min |
| IAD | 2010/3 | 56.6 min |
| IAD | 2010/4 | 57.1 min |
| IAD | 2010/5 | 57.7 min |
| IAD | 2010/6 | 73.7 min |
| IAD | 2010/7 | 66.9 min |
| IAD | 2010/8 | 66.5 min |
| IAD | 2010/9 | 59.6 min |
| IAD | 2010/10 | 57 min |
| IAD | 2010/11 | 58.2 min |
| IAD | 2010/12 | 65.9 min |
| IAD | 2011/1 | 60 min |
| IAD | 2011/2 | 71.6 min |
| IAD | 2011/3 | 65.1 min |
| IAD | 2011/4 | 70 min |
| IAD | 2011/5 | 66.9 min |
| IAD | 2011/6 | 74.9 min |
| IAD | 2011/7 | 70.2 min |
| IAD | 2011/8 | 74.6 min |
| IAD | 2011/9 | 66.4 min |
| IAD | 2011/10 | 67.4 min |
| IAD | 2011/11 | 60.7 min |
| IAD | 2011/12 | 59.1 min |
| IAD | 2012/1 | 54 min |
| IAD | 2012/2 | 67.2 min |
| IAD | 2012/3 | 54.7 min |
| IAD | 2012/4 | 58.4 min |
| IAD | 2012/5 | 69 min |
| IAD | 2012/6 | 67.9 min |
| IAD | 2012/7 | 68.1 min |
| IAD | 2012/8 | 67.6 min |
| IAD | 2012/9 | 62.7 min |
| IAD | 2012/10 | 59.7 min |
| IAD | 2012/11 | 55.7 min |
| IAD | 2012/12 | 58.4 min |
| IAD | 2013/1 | 59.3 min |
| IAD | 2013/2 | 61.7 min |
| IAD | 2013/3 | 61.3 min |
| IAD | 2013/4 | 64.8 min |
| IAD | 2013/5 | 61.1 min |
| IAD | 2013/6 | 62.8 min |
| IAD | 2013/7 | 63.7 min |
| IAD | 2013/8 | 58.6 min |
| IAD | 2013/9 | 56.3 min |
| IAD | 2013/10 | 60.4 min |
| IAD | 2013/11 | 62.3 min |
| IAD | 2013/12 | 63.1 min |
| IAD | 2014/1 | 80.7 min |
| IAD | 2014/2 | 65.6 min |
| IAD | 2014/3 | 57.9 min |
| IAD | 2014/4 | 55 min |
| IAD | 2014/5 | 64.3 min |
| IAD | 2014/6 | 66.8 min |
| IAD | 2014/7 | 63.2 min |
| IAD | 2014/8 | 61 min |
| IAD | 2014/9 | 60.1 min |
| IAD | 2014/10 | 52.6 min |
| IAD | 2014/11 | 69.3 min |
| IAD | 2014/12 | 59.2 min |
| IAD | 2015/1 | 61.2 min |
| IAD | 2015/2 | 55.2 min |
| IAD | 2015/3 | 54.8 min |
| IAD | 2015/4 | 51.5 min |
| IAD | 2015/5 | 56.8 min |
| IAD | 2015/6 | 52.6 min |
| IAD | 2015/7 | 56.9 min |
| IAD | 2015/8 | 54.3 min |
| IAD | 2015/9 | 43.6 min |
| IAD | 2015/10 | 56.3 min |
| IAD | 2015/11 | 59.8 min |
| IAD | 2015/12 | 60.9 min |
| IAD | 2016/1 | 54.8 min |