DL 576 then DL 1892 at Atlanta
Mexico City → Atlanta → Chattanooga
Timetable, Atlanta time
16:45DL 576 from Mexico City at the gate
14:30DL 1892 to Chattanooga leaves the gate
21 h 45 apart on the timetable, overnight
DL 1892 leaves 21 h 45 after DL 576 arrives on the timetable: more than half a day, so not a connection we count.