This is from the
Yahoo! Travel site, it lists the best and worst airports (based on on time %) in the U.S. The list is:
Best
1. Salt Lake City (SLC)
2. Portland (PDX)
3. (Tie) Washington, D.C. (DCA)
3. (Tie) Minneapolis St. Paul (MSP)
5. (Tie) Los Angeles (LAX)
5. (Tie) San Diego (SAN)
5. (Tie) Tampa (TPA)
Worst
1. Newark (EWR)
2. Chicago (ORD)
3. Miami (MIA)
4. (Tie) Dallas Ft. Worth (DFW)
4. (Tie) New York (LGA)
4. (Tie) New York (JFK)
I think it's interesting that the 3 major AA hubs all made it on the worst list. No wonder there are so many complaints about DFW in the forums.