AA 2403 then DL 589 at Atlanta
Dallas-Fort Worth → Atlanta → Mexico City
Timetable, Atlanta time
19:14AA 2403 from Dallas-Fort Worth at the gate
19:08DL 589 to Mexico City leaves the gate
23 h 54 apart on the timetable, overnight
DL 589 leaves 23 h 54 after AA 2403 arrives on the timetable: more than half a day, so not a connection we count.