F9 4702 then DL 585 at Atlanta
Austin → Atlanta → Mexico City
Timetable, Atlanta time
19:10F9 4702 from Austin at the gate
17:49DL 585 to Mexico City leaves the gate
22 h 39 apart on the timetable, overnight
DL 585 leaves 22 h 39 after F9 4702 arrives on the timetable: more than half a day, so not a connection we count.