Better on time and completion factor means that it costs Delta less money to operate the flight, since they don't have to reschedule a customer. Our fixed costs may be higher, but combine more satisfied customers with fuel savings from fuel conservation initiatives, and we may be cheaper overall. In real terms or otherwise.
I didn't say the graphs said we were cheaper. But just think of what the graphs are telling us about the operation as a whole, and how that affects costs to Big D.
I understand what you are saying now. I was hoping that there was some hard, verifiable info somewhere that pointed to ASA as a lower cost option than MESA, et al. However, what you are saying indirectly makes a good point.
I suspect that there is a large Excel graph somewhere in the Kremlin that breaks down which of the DCI stepchildren are the least and most expensive. Job security for us means being at the bottom of this list.
Looking around, I just don't see Delta, or any of the other 'parent' airlines, as all that concerned about the quality of the feed.