Delay stats for Boston, MA: Logan International per airline for period August 2005

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	558	82.97%	2.42%	0.39%	7.47%	0.00%	5.85%	0.36%	0.54%
Alaska Airlines Inc.	62	80.65%	12.39%	0.00%	6.97%	0.00%	0.00%	0.00%	0.00%
America West Airlines Inc.	213	78.87%	5.30%	0.00%	12.57%	0.47%	1.38%	0.94%	0.47%
ATA Airlines d/b/a ATA	139	76.26%	1.53%	0.00%	19.40%	0.00%	2.82%	0.00%	0.00%
US Airways Inc.	1 802	73.08%	4.03%	0.69%	12.99%	0.00%	5.60%	3.39%	0.22%
United Air Lines Inc.	820	73.05%	5.50%	0.47%	13.19%	0.00%	6.45%	1.10%	0.24%
Comair Inc.	1 194	71.44%	4.97%	5.74%	14.02%	0.11%	0.37%	3.35%	0.00%
Delta Air Lines Inc.	1 498	70.56%	4.36%	0.62%	14.14%	0.05%	7.14%	2.87%	0.27%
Expressjet Airlines Inc.	24	66.67%	4.88%	0.38%	9.38%	0.00%	18.71%	0.00%	0.00%
Continental Air Lines Inc.	607	66.23%	4.18%	1.15%	21.02%	0.42%	5.69%	1.15%	0.16%
American Airlines Inc.	1 233	65.29%	6.42%	2.00%	17.66%	0.01%	6.51%	1.70%	0.41%
American Eagle Airlines Inc.	1 503	64.54%	4.57%	0.52%	15.61%	0.07%	8.77%	5.79%	0.13%
Independence Air	245	64.08%	6.36%	0.00%	12.11%	0.32%	11.42%	5.31%	0.41%
AirTran Airways Corporation	671	62.74%	3.49%	0.15%	19.30%	0.00%	12.83%	1.49%	0.00%
Northwest Airlines Inc.	421	44.42%	22.09%	5.01%	18.86%	0.24%	4.17%	4.99%	0.24%
Totals	10 990	68.89%	5.31%	1.44%	14.94%	0.08%	6.25%	2.88%	0.22%

DelayStats.aircraftdata.net