Delay stats for Seattle, WA: Seattle/Tacoma International per airline for period October 2003

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
Southwest Airlines Co.	1 157	86.60%	2.44%	0.34%	4.56%	0.03%	5.42%	0.52%	0.09%
America West Airlines Inc.	279	83.51%	6.48%	0.00%	7.63%	0.14%	1.51%	0.72%	0.00%
Continental Air Lines Inc.	359	83.28%	2.17%	0.04%	12.91%	0.14%	1.18%	0.28%	0.00%
American Airlines Inc.	597	81.91%	3.63%	0.20%	12.27%	0.00%	1.65%	0.17%	0.17%
Alaska Airlines Inc.	3 912	78.43%	3.75%	0.09%	8.64%	0.03%	6.89%	1.89%	0.28%
United Air Lines Inc.	1 131	77.54%	3.63%	0.12%	14.39%	0.00%	4.05%	0.27%	0.00%
Delta Air Lines Inc.	490	77.14%	5.08%	0.01%	14.92%	0.00%	1.62%	1.02%	0.20%
ATA Airlines d/b/a ATA	89	76.40%	4.75%	0.00%	18.84%	0.00%	0.00%	0.00%	0.00%
Skywest Airlines Inc.	377	75.07%	8.49%	2.12%	6.37%	0.00%	2.39%	5.57%	0.00%
US Airways Inc.	164	75.00%	4.35%	0.00%	14.98%	0.00%	5.66%	0.00%	0.00%
Northwest Airlines Inc.	335	73.13%	8.36%	0.23%	17.91%	0.06%	0.30%	0.00%	0.00%
JetBlue Airways	31	70.97%	8.61%	0.00%	16.42%	0.77%	3.23%	0.00%	0.00%
Totals	8 921	79.44%	4.06%	0.21%	10.07%	0.03%	4.76%	1.27%	0.16%

DelayStats.aircraftdata.net