DL 5232 then DL 5117 at Detroit
Memphis → Detroit → Chattanooga
Timetable, Detroit time
20:50DL 5232 from Memphis at the gate
12:29DL 5117 to Chattanooga leaves the gate
15 h 39 apart on the timetable, overnight
DL 5117 leaves 15 h 39 after DL 5232 arrives on the timetable: more than half a day, so not a connection we count.