UA 2074 then DL 2709 at Houston
Miami → Houston → Atlanta
Timetable, Houston time
08:30UA 2074 from Miami at the gate
08:05DL 2709 to Atlanta leaves the gate
23 h 35 apart on the timetable, overnight
DL 2709 leaves 23 h 35 after UA 2074 arrives on the timetable: more than half a day, so not a connection we count.