AA 2712 then AA 1728 at DFW
St Louis → Dallas-Fort Worth → Cincinnati
Timetable, Dallas-Fort Worth time
16:55AA 2712 from St Louis at the gate
15:13AA 1728 to Cincinnati leaves the gate
22 h 18 apart on the timetable, overnight
AA 1728 leaves 22 h 18 after AA 2712 arrives on the timetable: more than half a day, so not a connection we count.