Delay stats for Boston, MA: Logan International per airline for period April 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
Comair Inc.	368	92.93%	2.75%	0.71%	2.24%	0.00%	0.00%	1.36%	0.00%
JetBlue Airways	354	92.66%	1.13%	0.15%	4.82%	0.02%	1.22%	0.00%	0.00%
Expressjet Airlines Inc.	21	90.48%	0.00%	0.00%	9.52%	0.00%	0.00%	0.00%	0.00%
Atlantic Southeast Airlines	30	90.00%	5.93%	0.00%	2.10%	0.00%	1.97%	0.00%	0.00%
AirTran Airways Corporation	443	89.39%	2.09%	0.00%	1.70%	0.00%	6.14%	0.68%	0.00%
Delta Air Lines Inc.	1 537	87.18%	3.33%	0.09%	6.78%	0.05%	2.37%	0.13%	0.07%
US Airways Inc.	1 691	86.81%	3.30%	0.06%	4.40%	0.00%	4.72%	0.71%	0.00%
Independence Air	734	82.97%	1.59%	0.23%	2.34%	0.00%	9.05%	3.68%	0.14%
Northwest Airlines Inc.	432	82.87%	6.87%	0.14%	8.78%	0.00%	1.34%	0.00%	0.00%
American Airlines Inc.	1 559	82.30%	4.75%	0.54%	7.17%	0.03%	4.51%	0.71%	0.00%
United Air Lines Inc.	898	82.29%	2.88%	0.00%	10.87%	0.00%	3.40%	0.56%	0.00%
ATA Airlines d/b/a ATA	107	82.23%	4.82%	0.00%	10.65%	0.00%	1.36%	0.93%	0.00%
Continental Air Lines Inc.	555	78.02%	6.06%	0.08%	11.35%	0.04%	3.90%	0.54%	0.00%
American Eagle Airlines Inc.	1 800	77.94%	3.61%	0.20%	6.21%	0.02%	10.08%	1.89%	0.06%
Alaska Airlines Inc.	37	70.27%	5.35%	0.00%	24.38%	0.00%	0.00%	0.00%	0.00%
America West Airlines Inc.	249	57.43%	7.80%	0.00%	31.55%	0.00%	2.02%	1.20%	0.00%
Totals	10 815	83.24%	3.68%	0.19%	6.96%	0.02%	4.91%	0.98%	0.03%

DelayStats.aircraftdata.net