DL 2188 then DL 5519 at Atlanta
Detroit → Atlanta → Tri-Cities
Timetable, Atlanta time
14:27DL 2188 from Detroit at the gate
13:45DL 5519 to Tri-Cities leaves the gate
23 h 18 apart on the timetable, overnight
DL 5519 leaves 23 h 18 after DL 2188 arrives on the timetable: more than half a day, so not a connection we count.