DL 406 then DL 1892 at Atlanta
Bozeman → Atlanta → Chattanooga
Timetable, Atlanta time
20:12DL 406 from Bozeman at the gate
14:30DL 1892 to Chattanooga leaves the gate
18 h 18 apart on the timetable, overnight
DL 1892 leaves 18 h 18 after DL 406 arrives on the timetable: more than half a day, so not a connection we count.