Delay stats for Boston, MA: Logan International per airline for period August 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
Alaska Airlines Inc.	62	90.31%	3.06%	0.00%	3.71%	0.00%	2.92%	0.00%	0.00%
Expressjet Airlines Inc.	32	84.38%	11.84%	0.00%	3.78%	0.00%	0.00%	0.00%	0.00%
Delta Air Lines Inc.	1 341	79.04%	4.20%	0.35%	9.10%	0.06%	4.72%	2.46%	0.07%
JetBlue Airways	1 362	78.49%	3.55%	0.62%	9.34%	0.26%	7.29%	0.44%	0.00%
United Air Lines Inc.	970	77.94%	5.20%	0.92%	6.16%	0.00%	8.24%	1.44%	0.10%
Northwest Airlines Inc.	394	77.16%	9.76%	2.75%	6.48%	0.00%	3.09%	0.76%	0.00%
US Airways Inc.	1 830	75.46%	4.79%	0.34%	10.50%	0.00%	6.56%	2.35%	0.00%
American Airlines Inc.	1 166	71.78%	5.83%	1.50%	11.67%	0.36%	7.23%	1.63%	0.00%
American Eagle Airlines Inc.	1 413	70.98%	5.22%	0.46%	8.93%	0.19%	9.62%	4.60%	0.00%
AirTran Airways Corporation	918	69.17%	3.76%	0.09%	17.76%	0.00%	8.13%	1.09%	0.00%
Continental Air Lines Inc.	606	67.99%	4.95%	0.87%	17.44%	0.53%	6.91%	1.32%	0.00%
Comair Inc.	1 196	63.04%	10.40%	5.26%	14.56%	0.28%	1.77%	4.52%	0.17%
Mesa Airlines Inc.	178	52.81%	22.47%	0.00%	8.43%	0.00%	11.80%	4.49%	0.00%
Totals	11 468	73.14%	5.73%	1.15%	10.90%	0.15%	6.59%	2.29%	0.03%

DelayStats.aircraftdata.net