Delay stats for Baltimore, MD: Baltimore/Washington International Thurgood Marsh per airline for period April 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
AirTran Airways Corporation	1 024	85.25%	1.86%	0.27%	3.68%	0.00%	8.75%	0.20%	0.00%
Southwest Airlines Co.	4 782	85.24%	3.27%	0.55%	2.08%	0.06%	8.53%	0.13%	0.15%
Comair Inc.	274	84.31%	5.34%	3.43%	6.26%	0.00%	0.30%	0.36%	0.00%
Frontier Airlines Inc.	60	83.33%	9.27%	0.00%	5.62%	0.00%	0.12%	0.00%	1.67%
American Airlines Inc.	419	82.34%	6.54%	1.27%	3.05%	0.00%	6.80%	0.00%	0.00%
Delta Air Lines Inc.	337	81.31%	5.29%	0.36%	6.42%	0.07%	5.08%	1.48%	0.00%
Atlantic Southeast Airlines	35	80.00%	12.49%	2.86%	4.66%	0.00%	0.00%	0.00%	0.00%
Northwest Airlines Inc.	238	79.84%	11.95%	0.53%	6.29%	0.00%	0.98%	0.42%	0.00%
American Eagle Airlines Inc.	235	78.30%	5.88%	0.90%	4.05%	0.00%	7.89%	2.55%	0.43%
United Air Lines Inc.	447	78.30%	8.15%	0.75%	3.25%	0.00%	7.53%	1.57%	0.45%
US Airways Inc.	422	77.49%	6.48%	0.04%	7.47%	0.00%	7.58%	0.47%	0.47%
Continental Air Lines Inc.	172	76.16%	9.79%	0.79%	8.08%	0.47%	4.72%	0.00%	0.00%
Mesa Airlines Inc.	18	66.67%	5.56%	5.56%	5.56%	0.00%	5.56%	11.11%	0.00%
Expressjet Airlines Inc.	218	62.84%	6.89%	0.39%	11.05%	0.00%	15.17%	3.67%	0.00%
Totals	8 681	83.03%	4.43%	0.64%	3.49%	0.05%	7.75%	0.46%	0.15%

DelayStats.aircraftdata.net