Delay stats for Boston, MA: Logan International per airline for period March 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.	379	90.77%	2.86%	1.96%	3.09%	0.00%	0.00%	1.32%	0.00%
JetBlue Airways	341	90.62%	1.21%	0.00%	4.03%	0.65%	3.21%	0.00%	0.29%
Atlantic Southeast Airlines	31	90.32%	4.19%	1.23%	4.26%	0.00%	0.00%	0.00%	0.00%
AirTran Airways Corporation	457	87.53%	2.38%	0.00%	3.74%	0.00%	4.82%	1.53%	0.00%
US Airways Inc.	1 708	83.43%	2.86%	0.04%	6.21%	0.00%	5.40%	2.05%	0.00%
Delta Air Lines Inc.	1 599	81.55%	2.99%	0.00%	10.66%	0.00%	3.42%	1.38%	0.00%
Expressjet Airlines Inc.	30	80.00%	0.00%	0.07%	16.87%	0.00%	3.07%	0.00%	0.00%
Independence Air	747	78.85%	1.74%	0.07%	4.28%	0.00%	9.58%	5.35%	0.13%
United Air Lines Inc.	877	78.68%	3.17%	0.18%	9.00%	0.00%	7.04%	1.94%	0.00%
American Eagle Airlines Inc.	1 803	78.04%	2.56%	0.48%	6.81%	0.00%	7.67%	4.38%	0.06%
ATA Airlines d/b/a ATA	103	77.67%	7.23%	0.00%	11.05%	0.00%	3.08%	0.97%	0.00%
Northwest Airlines Inc.	422	77.49%	6.80%	0.66%	11.00%	0.12%	2.27%	1.66%	0.00%
Continental Air Lines Inc.	547	74.22%	3.41%	0.52%	16.79%	0.23%	3.19%	1.46%	0.18%
Alaska Airlines Inc.	31	74.19%	3.19%	0.00%	16.23%	0.00%	6.39%	0.00%	0.00%
American Airlines Inc.	1 599	73.05%	5.36%	0.63%	12.87%	0.05%	5.42%	2.56%	0.06%
America West Airlines Inc.	247	62.75%	8.62%	0.00%	25.68%	0.25%	2.30%	0.40%	0.00%
Totals	10 921	79.47%	3.42%	0.32%	9.00%	0.05%	5.28%	2.41%	0.05%

DelayStats.aircraftdata.net