Delay stats for Boston, MA: Logan International per airline for period October 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	495	79.80%	1.74%	0.06%	9.61%	0.20%	5.15%	3.23%	0.20%
Expressjet Airlines Inc.	14	78.57%	0.00%	0.00%	21.43%	0.00%	0.00%	0.00%	0.00%
ATA Airlines d/b/a ATA	99	77.78%	0.47%	0.00%	17.99%	0.00%	1.74%	2.02%	0.00%
Delta Air Lines Inc.	1 548	75.13%	2.75%	0.09%	12.77%	0.00%	4.94%	4.26%	0.06%
US Airways Inc.	1 719	73.30%	3.82%	0.10%	14.28%	0.00%	5.42%	3.08%	0.00%
America West Airlines Inc.	181	72.37%	5.15%	0.44%	18.38%	0.00%	2.55%	1.10%	0.00%
Comair Inc.	1 102	70.33%	4.59%	3.71%	14.78%	0.00%	0.16%	6.08%	0.36%
American Airlines Inc.	1 164	68.04%	5.61%	0.50%	19.27%	0.00%	3.14%	3.18%	0.26%
AirTran Airways Corporation	680	67.94%	2.70%	0.05%	19.38%	0.00%	8.31%	1.62%	0.00%
United Air Lines Inc.	788	67.39%	4.58%	0.26%	20.99%	0.00%	4.76%	1.65%	0.38%
Alaska Airlines Inc.	59	64.41%	6.24%	0.00%	28.46%	0.00%	0.90%	0.00%	0.00%
American Eagle Airlines Inc.	1 468	63.08%	4.35%	1.01%	15.17%	0.00%	11.35%	4.84%	0.20%
Independence Air	150	62.00%	7.31%	0.00%	19.65%	0.00%	9.04%	2.00%	0.00%
Continental Air Lines Inc.	583	58.32%	5.43%	0.62%	21.64%	0.17%	10.38%	3.26%	0.17%
Northwest Airlines Inc.	348	50.86%	12.84%	9.09%	22.49%	0.29%	2.42%	2.01%	0.00%
Totals	10 398	68.96%	4.35%	0.99%	16.37%	0.03%	5.61%	3.53%	0.15%

DelayStats.aircraftdata.net