Delay stats for Boston, MA: Logan International per airline for period November 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	447	89.26%	1.69%	0.22%	6.37%	0.43%	2.03%	0.00%	0.00%
Comair Inc.	909	86.80%	3.70%	2.63%	5.66%	0.00%	0.11%	1.10%	0.00%
AirTran Airways Corporation	539	84.60%	3.23%	0.15%	6.41%	0.00%	4.13%	1.48%	0.00%
Delta Air Lines Inc.	1 541	80.53%	3.11%	0.25%	10.74%	0.00%	4.39%	0.84%	0.13%
Continental Air Lines Inc.	542	80.26%	3.66%	0.52%	11.35%	0.24%	3.96%	0.00%	0.00%
United Air Lines Inc.	806	79.90%	4.27%	0.05%	9.53%	0.00%	5.01%	1.24%	0.00%
US Airways Inc.	1 663	78.95%	5.88%	0.00%	6.39%	0.00%	6.73%	2.04%	0.00%
American Eagle Airlines Inc.	1 729	78.48%	2.99%	0.40%	6.23%	0.00%	7.27%	4.45%	0.17%
Northwest Airlines Inc.	434	78.11%	7.66%	2.25%	9.30%	0.00%	1.53%	1.15%	0.00%
American Airlines Inc.	1 415	76.25%	5.12%	0.90%	10.82%	0.09%	5.40%	1.27%	0.14%
Independence Air	420	75.48%	4.95%	0.01%	7.80%	0.24%	10.10%	1.43%	0.00%
America West Airlines Inc.	178	75.28%	6.39%	0.00%	11.84%	0.00%	5.93%	0.56%	0.00%
Expressjet Airlines Inc.	16	75.00%	6.19%	0.00%	12.94%	0.00%	5.88%	0.00%	0.00%
ATA Airlines d/b/a ATA	79	74.68%	4.51%	0.00%	15.18%	2.20%	3.43%	0.00%	0.00%
Alaska Airlines Inc.	29	65.52%	14.00%	0.00%	20.48%	0.00%	0.00%	0.00%	0.00%
Totals	10 747	79.96%	4.25%	0.58%	8.37%	0.07%	5.02%	1.69%	0.07%

DelayStats.aircraftdata.net