DL 2709 then AA 1869 at Houston
Atlanta → Houston → Miami
Timetable, Houston time
13:23DL 2709 from Atlanta at the gate
13:20AA 1869 to Miami leaves the gate
23 h 57 apart on the timetable, overnight
AA 1869 leaves 23 h 57 after DL 2709 arrives on the timetable: more than half a day, so not a connection we count.