DL 1053 then DL 1892 at Atlanta
Phoenix → Atlanta → Chattanooga
Timetable, Atlanta time
18:34DL 1053 from Phoenix at the gate
14:30DL 1892 to Chattanooga leaves the gate
19 h 56 apart on the timetable, overnight
DL 1892 leaves 19 h 56 after DL 1053 arrives on the timetable: more than half a day, so not a connection we count.