Delay stats for Baltimore, MD: Baltimore/Washington International Thurgood Marsh per airline for period July 2007

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
Mesa Airlines Inc.	30	80.00%	10.00%	0.00%	0.00%	0.00%	6.67%	3.33%	0.00%
Continental Air Lines Inc.	177	78.54%	3.34%	1.02%	7.81%	0.94%	7.79%	0.56%	0.00%
Pinnacle Airlines Inc.	60	76.67%	6.47%	1.62%	5.25%	0.00%	8.33%	1.67%	0.00%
Southwest Airlines Co.	5 368	73.01%	4.49%	1.85%	5.99%	0.13%	14.16%	0.13%	0.24%
Expressjet Airlines Inc.	216	67.59%	8.08%	0.56%	7.38%	0.00%	9.44%	6.94%	0.00%
AirTran Airways Corporation	1 399	64.33%	4.93%	0.61%	13.04%	0.00%	15.17%	1.72%	0.21%
United Air Lines Inc.	449	62.14%	7.60%	0.63%	12.55%	0.00%	14.39%	2.23%	0.45%
American Airlines Inc.	339	59.00%	9.23%	4.21%	14.02%	0.00%	12.36%	1.18%	0.00%
American Eagle Airlines Inc.	155	58.71%	13.56%	0.00%	9.79%	0.00%	11.48%	5.81%	0.65%
Northwest Airlines Inc.	304	58.55%	17.75%	1.84%	12.72%	0.28%	3.27%	5.59%	0.00%
Delta Air Lines Inc.	317	57.73%	14.32%	0.35%	15.73%	0.00%	11.25%	0.63%	0.00%
US Airways Inc.	390	56.66%	12.31%	0.66%	14.74%	0.08%	13.76%	1.79%	0.00%
Comair Inc.	397	54.66%	11.35%	7.90%	13.33%	0.07%	2.87%	9.07%	0.76%
Skywest Airlines Inc.	88	52.27%	37.50%	3.41%	5.68%	0.00%	0.00%	1.14%	0.00%
Totals	9 689	68.00%	6.73%	1.78%	8.88%	0.10%	12.88%	1.39%	0.23%

DelayStats.aircraftdata.net