It it not the weather or where we operate out of...all DCI carriers have to deal with these airports...maybe not to the extent as us but they still do.
The problem is people are trying to make up for lost money from concessions 75 hour months, and unproductive schedules. People are flying slow, and calling times late just to pad their pocket book. It is not hard to get a flight in on time, but a lot of these people are calling their times after A14 or whatever it is for their paychecks. I firmly believe ACARS would instantly increase our on time performance but the company is too damn cheap to install that as well....
Do your self a favor, when you have a captain/fo that wants to call times late, don't let them do it after the critical performance times...or do the honest thing and call them in at whatever time it is when you close/open the door like other airlines
Oh yeah...the scheduling department is horrible and would account for a lot of these delays as well....BUILD MORE LINES....LESS RESERVES!!!