Delay stats for Baltimore, MD: Baltimore/Washington International Thurgood Marsh per airline for period September 2006

Airline	Total flights	On time	Delay by air carrier	Delay by weather	Delay by national aviation system	Delay by security	Delay by aircraft arriving late	Cancelled	Diverted
Frontier Airlines Inc.	30	93.33%	3.63%	0.00%	3.03%	0.00%	0.00%	0.00%	0.00%
Continental Air Lines Inc.	167	91.61%	1.85%	0.15%	6.20%	0.19%	0.00%	0.00%	0.00%
Southwest Airlines Co.	4 905	87.56%	2.26%	0.53%	2.20%	0.08%	6.95%	0.33%	0.08%
Mesa Airlines Inc.	69	84.06%	10.14%	0.00%	4.35%	0.00%	1.45%	0.00%	0.00%
AirTran Airways Corporation	1 181	81.88%	2.06%	0.14%	3.97%	0.00%	11.10%	0.68%	0.17%
American Airlines Inc.	314	81.85%	7.59%	2.17%	1.82%	0.00%	4.67%	1.91%	0.00%
US Airways Inc.	360	76.39%	6.45%	0.18%	8.31%	0.00%	7.29%	1.39%	0.00%
United Air Lines Inc.	465	76.13%	4.21%	1.24%	4.33%	0.00%	12.81%	1.29%	0.00%
American Eagle Airlines Inc.	243	72.02%	7.90%	0.26%	5.32%	0.00%	10.38%	4.12%	0.00%
Northwest Airlines Inc.	368	72.01%	10.39%	1.42%	11.70%	0.00%	3.38%	0.82%	0.27%
Delta Air Lines Inc.	331	71.30%	9.44%	0.15%	7.18%	0.00%	10.73%	1.21%	0.00%
Expressjet Airlines Inc.	195	69.74%	7.18%	0.14%	8.44%	0.00%	11.43%	3.08%	0.00%
Comair Inc.	324	66.05%	9.38%	7.78%	9.10%	0.00%	3.06%	4.63%	0.00%
Atlantic Southeast Airlines	12	58.25%	18.83%	7.33%	15.58%	0.00%	0.00%	0.00%	0.00%
Totals	8 964	82.78%	3.89%	0.82%	3.93%	0.05%	7.57%	0.88%	0.08%

DelayStats.aircraftdata.net