DL 1189 then DL 1892 at Atlanta
Allentown → Atlanta → Chattanooga
Timetable, Atlanta time
20:24DL 1189 from Allentown at the gate
14:30DL 1892 to Chattanooga leaves the gate
18 h 06 apart on the timetable, overnight
DL 1892 leaves 18 h 06 after DL 1189 arrives on the timetable: more than half a day, so not a connection we count.