Originally Posted by JDiver
I also find it interesting that the morning flights SNA - DFW are 3:05 mostly, but the afternoon flights are about 2:57 in the schedules. Maybe the hotter afternoon air is less dense, so the aircraft flies faster due to decreased rag?
Most likely DFW is less congested in the morning than in the afternoon, so less need to pad the schedule in anticipation of delays on arrival.