DL 5377 then DL 1234 at Atlanta
Dothan → Atlanta → Miami
Timetable, Atlanta time
20:26DL 5377 from Dothan at the gate
20:25DL 1234 to Miami leaves the gate
23 h 59 apart on the timetable, overnight
DL 1234 leaves 23 h 59 after DL 5377 arrives on the timetable: more than half a day, so not a connection we count.