Delay stats for Baltimore, MD: Baltimore/Washington International Thurgood Marsh per airline for period September 2004

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
Continental Air Lines Inc.	241	91.70%	2.87%	0.00%	4.85%	0.00%	0.58%	0.00%	0.00%
Southwest Airlines Co.	4 734	87.47%	1.94%	0.52%	2.21%	0.07%	4.81%	2.96%	0.02%
United Air Lines Inc.	509	87.23%	3.50%	0.31%	4.95%	0.39%	3.23%	0.20%	0.20%
AirTran Airways Corporation	851	85.90%	2.07%	0.00%	2.45%	0.00%	5.00%	4.47%	0.12%
American Airlines Inc.	536	84.89%	3.81%	0.21%	5.84%	0.00%	2.46%	2.80%	0.00%
Northwest Airlines Inc.	322	82.61%	8.10%	0.52%	7.84%	0.00%	0.62%	0.31%	0.00%
Comair Inc.	120	82.50%	6.49%	4.51%	3.17%	0.00%	0.83%	2.50%	0.00%
Delta Air Lines Inc.	450	81.11%	5.98%	0.87%	4.74%	0.00%	3.96%	3.33%	0.00%
US Airways Inc.	478	78.45%	6.06%	0.21%	4.38%	0.00%	7.55%	3.35%	0.00%
Expressjet Airlines Inc.	127	77.17%	2.33%	0.37%	9.28%	0.00%	6.91%	3.94%	0.00%
America West Airlines Inc.	149	73.82%	7.26%	0.00%	12.76%	0.00%	3.48%	2.01%	0.67%
American Eagle Airlines Inc.	198	72.73%	9.46%	0.76%	4.02%	0.00%	6.46%	6.57%	0.00%
Totals	8 715	85.47%	3.18%	0.47%	3.49%	0.06%	4.42%	2.87%	0.05%

DelayStats.aircraftdata.net