The SAN CLT flts I remember (circa 1988), came in just as I arrived at work early in the morning around 6:00 or 6:30am thereabouts.
I remember this because it felt strange to see passengers walking thru C concourse that early in the morning before we had our first cup of coffee.
It was called a red eye flight and from the looks of the passengers, one could clearly see why.
The aircraft used on this leg of the flts was the new 737-400 we had just recently taken delivery of. The name on the aircraft was PIEDMONT!
Silver fuse w red and burgandy/maroon stripes/tape.
People who were actually there remember it best.
Timetables don't have eyes nor memories.