DL 5175 then DL 589 at Atlanta
Chattanooga → Atlanta → Mexico City
Timetable, Atlanta time
20:35DL 5175 from Chattanooga at the gate
19:12DL 589 to Mexico City leaves the gate
22 h 37 apart on the timetable, overnight
DL 589 leaves 22 h 37 after DL 5175 arrives on the timetable: more than half a day, so not a connection we count.