Delay stats for Boston, MA: Logan International per airline for period August 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
JetBlue Airways	404	84.41%	2.46%	1.42%	3.46%	0.06%	6.72%	1.49%	0.00%
Continental Air Lines Inc.	578	80.10%	3.11%	0.20%	11.10%	0.00%	4.63%	0.87%	0.00%
Delta Air Lines Inc.	1 618	79.79%	3.42%	0.29%	8.32%	0.04%	5.92%	2.10%	0.12%
United Air Lines Inc.	1 016	79.33%	4.09%	0.39%	10.61%	0.00%	4.50%	0.89%	0.20%
Comair Inc.	1 001	79.32%	5.10%	4.02%	8.15%	0.00%	0.62%	2.60%	0.20%
AirTran Airways Corporation	660	78.79%	2.68%	0.22%	8.92%	0.00%	7.12%	2.12%	0.15%
ATA Airlines d/b/a ATA	116	77.59%	3.84%	0.00%	11.24%	0.00%	7.33%	0.00%	0.00%
Alaska Airlines Inc.	62	77.42%	7.79%	0.00%	9.53%	0.76%	4.50%	0.00%	0.00%
US Airways Inc.	1 727	77.30%	5.06%	0.69%	6.61%	0.00%	6.57%	3.76%	0.00%
Expressjet Airlines Inc.	17	76.47%	0.00%	0.00%	18.59%	0.00%	4.94%	0.00%	0.00%
Northwest Airlines Inc.	505	73.47%	7.94%	5.66%	10.88%	0.00%	1.46%	0.40%	0.20%
American Airlines Inc.	1 523	73.34%	6.21%	2.33%	8.02%	0.03%	8.23%	1.71%	0.13%
American Eagle Airlines Inc.	2 012	70.23%	5.55%	0.80%	7.27%	0.07%	10.66%	5.42%	0.00%
Independence Air	504	68.06%	2.64%	0.35%	13.92%	0.00%	10.27%	4.76%	0.00%
America West Airlines Inc.	310	64.52%	12.10%	0.16%	16.22%	0.32%	5.71%	0.00%	0.97%
Totals	12 053	75.87%	4.87%	1.26%	8.63%	0.04%	6.56%	2.65%	0.11%

DelayStats.aircraftdata.net