Delay stats for Boston, MA: Logan International per airline for period December 2006

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
Delta Air Lines Inc.	1 300	86.69%	2.68%	0.08%	4.68%	0.00%	4.10%	1.69%	0.08%
Alaska Airlines Inc.	31	80.65%	10.29%	0.00%	9.06%	0.00%	0.00%	0.00%	0.00%
AirTran Airways Corporation	919	79.00%	3.33%	0.09%	5.44%	0.00%	10.51%	1.41%	0.22%
US Airways Inc.	1 557	78.68%	4.48%	0.29%	6.94%	0.00%	6.65%	2.89%	0.06%
JetBlue Airways	1 652	75.73%	5.10%	0.16%	7.31%	0.10%	10.93%	0.67%	0.00%
Continental Air Lines Inc.	524	75.19%	4.61%	1.27%	7.99%	0.05%	9.54%	1.34%	0.00%
United Air Lines Inc.	917	74.70%	6.65%	0.12%	5.54%	0.00%	8.41%	4.47%	0.11%
Mesa Airlines Inc.	110	74.55%	10.00%	0.00%	3.64%	0.00%	9.09%	2.73%	0.00%
American Eagle Airlines Inc.	1 295	74.44%	4.81%	0.34%	5.94%	0.00%	10.91%	3.55%	0.00%
American Airlines Inc.	1 055	74.12%	7.05%	0.86%	5.64%	0.00%	8.64%	3.70%	0.00%
Comair Inc.	1 265	69.25%	12.82%	4.50%	7.02%	0.04%	2.42%	3.87%	0.08%
Northwest Airlines Inc.	391	68.80%	14.51%	1.09%	10.15%	0.00%	3.93%	1.28%	0.26%
Expressjet Airlines Inc.	34	67.65%	3.56%	0.00%	18.41%	0.00%	7.44%	2.94%	0.00%
Totals	11 050	76.28%	6.11%	0.83%	6.43%	0.02%	7.71%	2.55%	0.06%

DelayStats.aircraftdata.net