Originally Posted by TransWorld

Before deregulation, Ozark did milk runs up and down the Mississippi River, from Memphis to Minneapolis, 5 intermediate stops. Covered a lot of what are now EAS airports. Used the DC-9 (prestretched version of the Mad Dog). Worked fine.

If two or three off and two or three on at each stop, it was considered a good day. If loads were 35%, things were good.